Test.answers.1 - CH339L-08 Test 1 Name(1 20 points Based on...

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(1; 20 points) Based on what should have been shown in Figure 20-14, how many waters would be used as substrates for the production of one new glyceraldehyde-3-phosphate? (a) 1 (b) 3 (c) 5 (d) 7 (e) 9 (f) 10 (g) 11 (h) 14 (2; 15 points) How many high energy pyrophosphate (phosphoanhydride) bonds are burned during the cytosolic synthesis of surcrose from CO 2 ? (a) 36 (b) 37 (c) 38 (d) 39 (e) 40 (3; 20 points) The compound 1-deoxy-D-xylulose-5-phosphate (shown below) is generated by a transketoloase-like enzyme from two 3-carbon compounds. One of the 3-carbon compounds is pyruvate. What is the other 3-carbon compound (X, draw and name), and what is released in the reaction (Z, draw and name)? Pyruvate + X Z CH 3 O HO OH CH 2 OPO 3 2- TPP CH339L-08 Test 1 Name________________ *
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Need 3 water
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Needs water Needs water
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Doesn’t need water
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Figure 14-7, p. 530
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(1; 20 points) Based on what should have been shown in Figure 20-14, how many waters would be used as substrates for the production of one new glyceraldehyde-3-phosphate? (a) 1 (b) 3 (c) 5 (d) 7 (e) 9 (f) 10 (g) 11 (h) 14 (2; 15 points) How many high energy pyrophosphate (phosphoanhydride) bonds are burned during the cytosolic synthesis of surcrose from CO 2 ? (a) 36 (b) 37 (c) 38 (d) 39 (e) 40 (3; 20 points) The compound 1-deoxy-D-xylulose-5-phosphate (shown below) is generated by a transketoloase-like enzyme from two 3-carbon compounds. One of the 3-carbon compounds is pyruvate. What is the other 3-carbon compound (X, draw and name), and what is released in the reaction (Z, draw and name)? Pyruvate + X Z CH 3 O HO OH CH 2 OPO 3 2- TPP CH339L-08 Test 1 Name________________ * 5
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Table 13-4, p. 493
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No cytosolic pyrophophatase in plants Figure 15-7, p. 565
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