5 ???? PLEASE Which of the following is FALSE about photosynthesis? A. We can re
ID: 856990 • Letter: 5
Question
5 ???? PLEASE
Which of the following is FALSE about photosynthesis?
A. We can represent photosynthesis as: energy (from sun) + 6 H2O + 6 CO2 - - -> hexose + 6 O2
B. Part of photosynthesis is a set of reactions that occur only in presence of light.
C. Part of photosynthesis is a set of reactions that can occur in the dark.
D. The two photosystems that function in photosynthesis result in production of NADP(+), a compound used in the dark reactions of photosynthesis.
Point Value: 3
27.This question has not been answered completely
Which of these is TRUE about the Calvin cycle?
A. In the first stage of the Calvin cycle, CO2 is "fixed" and 3-phosphoglycerate is synthesized.
B. In the second stage of the Calvin cycle, reduction occurs (using NADPH) and hexose sugars are formed.
C. In the third stage of the Calvin cycle, ribulose-1,5-bisphosphate is regenerated, allowing the cycle to continue, with the fixing of more CO2.
D. All of the above are true.
Point Value: 3
28.This question has not been answered completely
Which is true about the breakdown of glycogen?
A. Glycogen is hydrolyzed to release glucose-1-phosphate
B. Glucose-1-phosphate, released from glycogen, enters glycolysis without being altered or transformed.
C. The yield of ATP equivalents from a glucose unit from glycogen would be the same (+2) as the yield of ATP equivalents from glucose itself in glycolysis.
D. Because it is a branched polymer, complete breakdown of glycogen requires at least 2 enzymes.
E. All of the above are true.
Point Value: 3
29.This question has not been answered completely
Glycogen breakdown is influenced by hormones.
Which of the following is TRUE?
A. Glucagon stimulates glycogen breakdown in muscle.
B. Epinephrine stimulates glycogen breakdown in muscle and liver.
C. Epinephrine and glucagon both act by entering cells through a receptor in the cell membrane.
D. The ultimate effect of both epinephrine and glucagon is conversion of phosphorylase a to phosphorylase b.
Point Value: 3
30.This question has not been answered completely
This is a question about inherited diseases or conditions involving glycogen phosphorylase. This is covered in your text in the Clinical Insight about Hers Disease (p. 430) and in a question on p. 434 (for which, of course, there is an answer in the back of the text).
Which of the following is true?
A. In Hers Disease, there is a lack of glycogen phosphorylase in liver, leading to hypoglycemia.
B. In McArdle Disease, there is a lack of glycogen phosphorylase in muscle.
C. In McArdle Disease (but not in Hers Disease) exercise is difficult for the patient.
D. In Hers Disease (but not in McArdle Disease) the abdoment sometimes protrudes.
E. All of the above are true.
Explanation / Answer
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