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<h2 class="hd hd-2 unit-title">Question 1</h2>
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<p>The following is the “line-angle” drawing of a molecule called diketopiperazine, an impurity found in the artificial sweetener aspartame. The carbon atoms and the hydrogen atoms bonded to them are not shown but implied. </p>
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Question 1a, part iv
</h3>
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<p>What is the chemical formula of diketopiperazine? (Enter answers as whole number integers.)</p>
<h3> How many C's? </h3>
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<span class="status unanswered" id="status_be9d603621ce4ac8bb9eec29ac1d0de3_2_1" data-tooltip="Not yet answered.">
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\(\)
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<h3> How many H's? </h3>
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<span class="status unanswered" id="status_be9d603621ce4ac8bb9eec29ac1d0de3_3_1" data-tooltip="Not yet answered.">
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\(\)
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<h3> How many N's? </h3>
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<span class="status unanswered" id="status_be9d603621ce4ac8bb9eec29ac1d0de3_4_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
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<p id="answer_be9d603621ce4ac8bb9eec29ac1d0de3_4_1" class="answer"/>
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\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
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<h3> How many O's? </h3>
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<p>The following is a line angle drawing of a biological molecule. Multiple copies of this molecule can arrange and form the plasma membrane of a cell.</p>
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Question 1b, part i
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<p>The above molecule belongs to which class of macromolecules? <br/> Select the correct response from the dropdown menu. </p>
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<option value="carbohydrates"> carbohydrates</option>
<option value="lipids"> lipids</option>
<option value="proteins"> proteins</option>
<option value="nucleic acids"> nucleic acids</option>
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Question 1b, part ii
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<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><p>Which zone includes the part of the molecule that will be exposed to the aqueous (i.e. water filled) exterior or cytoplasm of the cell? Select the best answer.</p>
<p><img src="/assets/courseware/v1/5660a7496e0bd924144221256e7d60ee/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q1b_part_2_and_3.png" width="600" style="float:center;" alt="The line angle diagram of a large molecule. To the left side of the molecule are multiple polar groups containing oxygen. To the right side of the molecule are two long carbon chains."/></p>
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Question 1b, part iii
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<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><p>Which zone includes the part of the molecule that will form the hydrophobic region of the plasma membrane? Select the best answer.</p>
<p><img src="/assets/courseware/v1/5660a7496e0bd924144221256e7d60ee/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q1b_part_2_and_3.png" width="600" style="float:center;" alt="The line angle diagram of a large molecule. To the left side of the molecule are multiple polar groups containing oxygen. To the right side of the molecule are two long carbon chains."/></p>
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<h2 class="hd hd-2 unit-title">Question 2</h2>
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Question 2 parts a and b concern the following molecule.
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<p>Give the chemical formula of ribose (<b>not</b> ribose triphosphate).</p>
<p> Please give your answer without spaces in the following format: C#H#O#</p>
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Question 2b
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<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><p>Which covalent bond forms between ribose and triphosphate during a condensation reaction resulting in the formation of ribose triphosphate? Refer to the numbers above the corresponding bond. Select the best answer.</p>
<p><img src="/assets/courseware/v1/ae21b9dbddfb7508f8c82846670041c6/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q2a_v2.png" width="500" style="float:center;" alt="The line angle diagram of ribose triphosphate. Four bonds are labeled 1 through 4."/></p>
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<p>What is another product of the condensation reaction? </p>
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<p>The following is adenine base, which can covalently bond, through condensation reaction with ribose sugar to form a nucleotide (ATP).</p>
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Question 2d
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<legend id="e849313ab24d4cc08e0ad9caef6212d0_2_1-legend" class="response-fieldset-legend field-group-hd">Which carbon atom of the ribose sugar would covalently bond with the circled region of adenine to form Adenosine triphoshphate (ATP)?</legend>
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<legend id="e849313ab24d4cc08e0ad9caef6212d0_3_1-legend" class="response-fieldset-legend field-group-hd">Would you classify this base as purine or pyrimidine?</legend>
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Four different structures are shown below.
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Question 2e
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<p>Which molecule serves as a building block of proteins? </p>
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<p>Which molecule is an example of steroids that may be found within the non-aqueous interior of the cell membrane? </p>
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<p>Which structure is an example of a nucleotide? </p>
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<h2 class="hd hd-2 unit-title">Question 3</h2>
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Question 3a
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<p>The formation of biological molecule usually requires energy (anabolic) with a &#916;G&gt;0.</p>
<p>Which energy profile represents an anabolic (energy requiring) reaction with a &#916;G&gt;0? Select the best answer.</p>
<p><img src="/assets/courseware/v1/0b206472350df1277c15d488ccace4a8/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q3aNEW.png" width="500" style="float: center;" alt="Two energy diagrams, with course of reaction on the x axis and G on the y axis. The left diagram starts at a low value, rises to a hill, then ends at a higher value. The right diagram starts at a high value, rises to a hill, then ends at a lower value. Both have blank boxes for later labeling."/></p>
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<p>On the left energy profile only (reproduced below), use the dropdown options to label the diagram.</p>
<p><img src="/assets/courseware/v1/99b7f00b4c50d631869d7987a367e703/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q3a_left.png" width="300" style="float: center;" alt="One energy diagram, with course of reaction on the x axis and G on the y axis. The left diagram starts at a low value (labeled 1) and rises to a hill, then ends at a higher value (labeled 3). The difference between the top of the hill and the low value is labeled 2 and the difference between the high value and low value is labeled 4."/></p>
<ul>
<li>&#916;G (free energy) is at location <div class="inline" tabindex="-1" aria-label="Question 2" role="group"><div class="inputtype option-input inline">
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<option value="2"> 2</option>
<option value="3"> 3</option>
<option value="4"> 4</option>
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<li>EA (energy of activation) is at location <div class="inline" tabindex="-1" aria-label="Question 3" role="group"><div class="inputtype option-input inline">
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<li>Reactants are at location <div class="inline" tabindex="-1" aria-label="Question 4" role="group"><div class="inputtype option-input inline">
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<option value="2"> 2</option>
<option value="3"> 3</option>
<option value="4"> 4</option>
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<li>Products are at location <div class="inline" tabindex="-1" aria-label="Question 5" role="group"><div class="inputtype option-input inline">
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<option value="2"> 2</option>
<option value="3"> 3</option>
<option value="4"> 4</option>
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Question 3b, part ii
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<p>Give the DNA sequence that is complementary to the RNA sequence above.<br/> Please give your answer without spaces in the following format: X'NNNX'</p>
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<h2 class="hd hd-2 unit-title">Question 4</h2>
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<p>This schematic shows the binding of Penicillin G to a protein. <i>For simplicity, only the side-chains of amino acids (X, B, O, Z) that interact with Penicillin G are shown. The structure of Penicillin G alone is also shown.</i></p>
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Question 4a
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<p>Identify the non-covalent interactions between penicillin G with the protein at...</p>
<p> region (i) </p>
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<p> region (ii) </p>
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<p> region (iii) </p>
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<p> region (iv) </p>
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<p>Would Penicillin G be able to bind to the mutant version of this protein that has a single amino acid substitution i.e. amino acid &#8220;O&#8221; is substituted by glutamic acid diagrammed above?</p>
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Question 4c, part i
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<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><p>The following pathway shows the conversion of amino acid Threonine to Glycine or Isoleucine.</p>
<p>Which step (activation or inhibition arrow) constitutes a negative feedback loop? Select the best answer.</p>
<p><img src="/assets/courseware/v1/91ba647c1d72d79d766772a576663cc2/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q4c_v2.png" width="600" style="float:center;" alt="The pathway for conversion of threonine to glycine or isoleucine. Each step in the pathway is labeled 1 through 4. Step 1 is threonine to 2 oxobutyrate by enzyme threonine deaminase. Step 2 is 2 oxobutyrate to isoleucine by enzyme A. Step 3 is inhibition of threonine deaminase by isoleucine. Step 4 is threonine to glycine by threonine aldolase."/> </p>
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Question 4c, part ii
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<p>How would an increase in the concentration of Isoleucine affect the amount of Glycine produced?</p>
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<h2 class="hd hd-2 unit-title">Question 5</h2>
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Question 5a
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<p>The following is the schematic of a <b>diploid somatic cell (Genotype: Bb)</b> that is undergoing <b>MITOSIS</b>. <i>Note: The paternal homolog for chromosome 1, in the somatic cell, is shown as a solid black line whereas the maternal homolog for the same chromosome is shown as a solid gray line. Also shown are the alleles of Gene B on paternal and maternal homologs.</i></p>
<p><img src="/assets/courseware/v1/6e4e29f7e423da09781229e35adfe83c/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a.png" width="600" style="float:center;" alt="A flow chart of a cell undergoing mitosis. The parent cell has one B chromosome and one small b chromosome. Then the cell undergoes DNA replication and splits into daughter cells. Both steps have been left blank for the following questions."/></p>
<p>Select the icon(s) that represent the replicated chromosomes in the parental cell. </p>
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<input type="checkbox" name="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1[]" id="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="f5d561c0519c462fbb66d2ba5fba04c0_2_1-choice_0-label" for="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_f5d561c0519c462fbb66d2ba5fba04c0_2_1"> <img src="/assets/courseware/v1/2d0163ca81693a4759db12d4d6904d1f/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_a.png" width="150" style="float:center;" alt="A cell with two B chromosomes and two small b chromosomes."/>
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<input type="checkbox" name="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1[]" id="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="f5d561c0519c462fbb66d2ba5fba04c0_2_1-choice_1-label" for="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_f5d561c0519c462fbb66d2ba5fba04c0_2_1"> <img src="/assets/courseware/v1/7e46a9bd475ec0bb77e7de9727c772a7/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_b.png" width="150" style="float:center;" alt="A cell with one B chromosome and one small b chromosome."/>
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<input type="checkbox" name="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1[]" id="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="f5d561c0519c462fbb66d2ba5fba04c0_2_1-choice_2-label" for="input_f5d561c0519c462fbb66d2ba5fba04c0_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_f5d561c0519c462fbb66d2ba5fba04c0_2_1"> <img src="/assets/courseware/v1/2434a28b46558b04eb9a3ac0dc874d5d/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_c.png" width="150" style="float:center;" alt="A cell with two B chromosomes."/>
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<p>Select the icon(s) that represent the daughter cells. </p>
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<input type="checkbox" name="input_f5d561c0519c462fbb66d2ba5fba04c0_3_1[]" id="input_f5d561c0519c462fbb66d2ba5fba04c0_3_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="f5d561c0519c462fbb66d2ba5fba04c0_3_1-choice_1-label" for="input_f5d561c0519c462fbb66d2ba5fba04c0_3_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_f5d561c0519c462fbb66d2ba5fba04c0_3_1"> <img src="/assets/courseware/v1/7e46a9bd475ec0bb77e7de9727c772a7/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_b.png" width="150" style="float:center;" alt="A cell with one B chromosome and one small b chromosome."/>
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<h3 class="hd hd-3 problem-header" id="c908129eceb149ab801dbf35cd24cd69-problem-title" aria-describedby="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@c908129eceb149ab801dbf35cd24cd69-problem-progress" tabindex="-1">
Question 5b
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<p>The following is the schematic of a <b>diploid cell (Genotype: Bb)</b> that is undergoing <b>MEIOTIC</b> cell division. <i>Note: The paternal homolog for chromosome 1, in the somatic cell, is shown as a solid black line whereas the maternal homolog for the same chromosome is shown as a solid gray line. Also shown are the alleles of Gene B on paternal and maternal homologs.</i></p>
<p><img src="/assets/courseware/v1/32bad38099ba39d0f0611cd87ddc986f/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5bNEW.png" width="700" style="float:center;" alt="A flow chart of a cell undergoing meiosis. The parent cell has one B chromosome and one small b chromosome. Then the cell undergoes DNA replication, splits into 2 daughter cells in meiosis I, then those daughts each split into 2 daughters in meiosis II. All three steps have been left blank for the following questions."/></p>
<p>Select the icon(s) that represent the replicated chromosomes in meiosis I. </p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_c908129eceb149ab801dbf35cd24cd69_2_1">
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_2_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="c908129eceb149ab801dbf35cd24cd69_2_1-choice_0-label" for="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_2_1"> <img src="/assets/courseware/v1/2d0163ca81693a4759db12d4d6904d1f/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_a.png" width="150" style="float:center;" alt="A cell with two B chromosomes and two small b chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_2_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="c908129eceb149ab801dbf35cd24cd69_2_1-choice_1-label" for="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_2_1"> <img src="/assets/courseware/v1/7e46a9bd475ec0bb77e7de9727c772a7/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_b.png" width="150" style="float:center;" alt="A cell with one B chromosome and one small b chromosome."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_2_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="c908129eceb149ab801dbf35cd24cd69_2_1-choice_2-label" for="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_2_1"> <img src="/assets/courseware/v1/2434a28b46558b04eb9a3ac0dc874d5d/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_c.png" width="150" style="float:center;" alt="A cell with two B chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_2_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="c908129eceb149ab801dbf35cd24cd69_2_1-choice_3-label" for="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_2_1"> <img src="/assets/courseware/v1/8004bc606092a6223419c80bcea40a3c/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_d.png" width="150" style="float:center;" alt="A cell with two small b chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_2_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="c908129eceb149ab801dbf35cd24cd69_2_1-choice_4-label" for="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_2_1"> <img src="/assets/courseware/v1/52c7e417d775715efcf633ac6512129c/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5b_e.png" width="150" style="float:center;" alt="A cell with one B chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_2_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_5" class="field-input input-checkbox" value="choice_5"/><label id="c908129eceb149ab801dbf35cd24cd69_2_1-choice_5-label" for="input_c908129eceb149ab801dbf35cd24cd69_2_1_choice_5" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_2_1"> <img src="/assets/courseware/v1/5c0f30552ea5a00d2c976c375a32ddaa/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5b_f.png" width="150" style="float:center;" alt="A cell with one small b chromosomes."/>
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<p>Select the icon(s) that represent the daughter cells of meiosis I. </p>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_3_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="c908129eceb149ab801dbf35cd24cd69_3_1-choice_0-label" for="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_3_1"> <img src="/assets/courseware/v1/2d0163ca81693a4759db12d4d6904d1f/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_a.png" width="150" style="float:center;" alt="A cell with two B chromosomes and two small b chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_3_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="c908129eceb149ab801dbf35cd24cd69_3_1-choice_1-label" for="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_3_1"> <img src="/assets/courseware/v1/7e46a9bd475ec0bb77e7de9727c772a7/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_b.png" width="150" style="float:center;" alt="A cell with one B chromosome and one small b chromosome."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_3_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="c908129eceb149ab801dbf35cd24cd69_3_1-choice_2-label" for="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_3_1"> <img src="/assets/courseware/v1/2434a28b46558b04eb9a3ac0dc874d5d/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_c.png" width="150" style="float:center;" alt="A cell with two B chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_3_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="c908129eceb149ab801dbf35cd24cd69_3_1-choice_3-label" for="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_3_1"> <img src="/assets/courseware/v1/8004bc606092a6223419c80bcea40a3c/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_d.png" width="150" style="float:center;" alt="A cell with two small b chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_3_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="c908129eceb149ab801dbf35cd24cd69_3_1-choice_4-label" for="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_3_1"> <img src="/assets/courseware/v1/52c7e417d775715efcf633ac6512129c/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5b_e.png" width="150" style="float:center;" alt="A cell with one B chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_3_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_5" class="field-input input-checkbox" value="choice_5"/><label id="c908129eceb149ab801dbf35cd24cd69_3_1-choice_5-label" for="input_c908129eceb149ab801dbf35cd24cd69_3_1_choice_5" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_3_1"> <img src="/assets/courseware/v1/5c0f30552ea5a00d2c976c375a32ddaa/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5b_f.png" width="150" style="float:center;" alt="A cell with one small b chromosomes."/>
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<p>Select the icon(s) that represent the daughter cells of meiosis II. </p>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_4_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="c908129eceb149ab801dbf35cd24cd69_4_1-choice_0-label" for="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_4_1"> <img src="/assets/courseware/v1/2d0163ca81693a4759db12d4d6904d1f/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_a.png" width="150" style="float:center;" alt="A cell with two B chromosomes and two small b chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_4_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="c908129eceb149ab801dbf35cd24cd69_4_1-choice_1-label" for="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_4_1"> <img src="/assets/courseware/v1/7e46a9bd475ec0bb77e7de9727c772a7/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_b.png" width="150" style="float:center;" alt="A cell with one B chromosome and one small b chromosome."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_4_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="c908129eceb149ab801dbf35cd24cd69_4_1-choice_2-label" for="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_4_1"> <img src="/assets/courseware/v1/2434a28b46558b04eb9a3ac0dc874d5d/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_c.png" width="150" style="float:center;" alt="A cell with two B chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_4_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="c908129eceb149ab801dbf35cd24cd69_4_1-choice_3-label" for="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_4_1"> <img src="/assets/courseware/v1/8004bc606092a6223419c80bcea40a3c/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5a_d.png" width="150" style="float:center;" alt="A cell with two small b chromosomes."/>
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<input type="checkbox" name="input_c908129eceb149ab801dbf35cd24cd69_4_1[]" id="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="c908129eceb149ab801dbf35cd24cd69_4_1-choice_4-label" for="input_c908129eceb149ab801dbf35cd24cd69_4_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_c908129eceb149ab801dbf35cd24cd69_4_1"> <img src="/assets/courseware/v1/52c7e417d775715efcf633ac6512129c/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/ps1_q5b_e.png" width="150" style="float:center;" alt="A cell with one B chromosomes."/>
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<h2 class="hd hd-2 unit-title">Question 6</h2>
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<h3 class="hd hd-3 problem-header" id="59c4349c3edf4ebb96aaba39adaf5d5c-problem-title" aria-describedby="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@59c4349c3edf4ebb96aaba39adaf5d5c-problem-progress" tabindex="-1">
Question 6
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<p>Complete the table by selecting the dropdown keywords for a eukaryotic somatic cell.</p>
<table class="chart" summary="Four biological descriptions given with four blanks to select the correct answer." label="Two columns. The first column gives the description of a subcellular structure and the second column asks what structure is being described." width="100%">
<tbody>
<tr><th scope="col" style="text-align: center; border: 1px solid black;"><b>Description</b></th>
<th scope="col" style="text-align: center; border: 1px solid black;"><b>Location or organelle in a somatic cell</b></th>
</tr>
<tr>
<td style="text-align: center; border: 1px solid black;">Stacked membrane-bound structures involved in the modification and transport of proteins after their synthesis</td>
<td style="text-align: center; border: 1px solid black;"><div class="inline" tabindex="-1" aria-label="Question 1" role="group"><div class="inputtype option-input inline">
<select name="input_59c4349c3edf4ebb96aaba39adaf5d5c_2_1" id="input_59c4349c3edf4ebb96aaba39adaf5d5c_2_1" aria-describedby="status_59c4349c3edf4ebb96aaba39adaf5d5c_2_1">
<option value="option_59c4349c3edf4ebb96aaba39adaf5d5c_2_1_dummy_default">Select an option</option>
<option value="cytoskeleton"> cytoskeleton</option>
<option value="endoplasmic reticulum"> endoplasmic reticulum</option>
<option value="Golgi body"> Golgi body</option>
<option value="nucleus"> nucleus</option>
<option value="plasma membrane"> plasma membrane</option>
</select>
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<span class="status unanswered" id="status_59c4349c3edf4ebb96aaba39adaf5d5c_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
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<p class="answer" id="answer_59c4349c3edf4ebb96aaba39adaf5d5c_2_1"/>
</div></div></td>
</tr>
<tr>
<td style="text-align: center; border: 1px solid black;">The location of the genome or hereditary information that is passed on by a cell to its daughter cells during cell division</td>
<td style="text-align: center; border: 1px solid black;"><div class="inline" tabindex="-1" aria-label="Question 2" role="group"><div class="inputtype option-input inline">
<select name="input_59c4349c3edf4ebb96aaba39adaf5d5c_3_1" id="input_59c4349c3edf4ebb96aaba39adaf5d5c_3_1" aria-describedby="status_59c4349c3edf4ebb96aaba39adaf5d5c_3_1">
<option value="option_59c4349c3edf4ebb96aaba39adaf5d5c_3_1_dummy_default">Select an option</option>
<option value="cytoskeleton"> cytoskeleton</option>
<option value="endoplasmic reticulum"> endoplasmic reticulum</option>
<option value="Golgi body"> Golgi body</option>
<option value="nucleus"> nucleus</option>
<option value="plasma membrane"> plasma membrane</option>
</select>
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<span class="status unanswered" id="status_59c4349c3edf4ebb96aaba39adaf5d5c_3_1" data-tooltip="Not yet answered.">
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<p class="answer" id="answer_59c4349c3edf4ebb96aaba39adaf5d5c_3_1"/>
</div></div></td>
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<tr>
<td style="text-align: center; border: 1px solid black;">Location of the proteins that maintain the shape and motility of a cell</td>
<td style="text-align: center; border: 1px solid black;"><div class="inline" tabindex="-1" aria-label="Question 3" role="group"><div class="inputtype option-input inline">
<select name="input_59c4349c3edf4ebb96aaba39adaf5d5c_4_1" id="input_59c4349c3edf4ebb96aaba39adaf5d5c_4_1" aria-describedby="status_59c4349c3edf4ebb96aaba39adaf5d5c_4_1">
<option value="option_59c4349c3edf4ebb96aaba39adaf5d5c_4_1_dummy_default">Select an option</option>
<option value="cytoskeleton"> cytoskeleton</option>
<option value="endoplasmic reticulum"> endoplasmic reticulum</option>
<option value="Golgi body"> Golgi body</option>
<option value="nucleus"> nucleus</option>
<option value="plasma membrane"> plasma membrane</option>
</select>
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<span class="status unanswered" id="status_59c4349c3edf4ebb96aaba39adaf5d5c_4_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
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<p class="answer" id="answer_59c4349c3edf4ebb96aaba39adaf5d5c_4_1"/>
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<td style="text-align: center; border: 1px solid black;">Membranous structures that are involved in protein synthesis and are studded with ribosomes</td>
<td style="text-align: center; border: 1px solid black;"><div class="inline" tabindex="-1" aria-label="Question 4" role="group"><div class="inputtype option-input inline">
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<option value="option_59c4349c3edf4ebb96aaba39adaf5d5c_5_1_dummy_default">Select an option</option>
<option value="cytoskeleton"> cytoskeleton</option>
<option value="endoplasmic reticulum"> endoplasmic reticulum</option>
<option value="Golgi body"> Golgi body</option>
<option value="nucleus"> nucleus</option>
<option value="plasma membrane"> plasma membrane</option>
</select>
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<span class="status unanswered" id="status_59c4349c3edf4ebb96aaba39adaf5d5c_5_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
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<p class="answer" id="answer_59c4349c3edf4ebb96aaba39adaf5d5c_5_1"/>
</div></div></td>
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