Regulated metabolic pathways are compartmentalized in eukaryotes usually regulat

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Biochemistry ‣ Carbohydrate Comments

Correct Answer

all of these

Carbohydrate problems

Search Results

1. The hormones, glucagon and epinephrine, stimulate glycogen breakdown to G-6-P
Options
A. only in the liver
B. using ATP as the phosphoryl donor
C. directly, by binding to glycogen phosphorylase
D. indirectly, by first stimulating adenylate cyclase to make cAMP

2. The process not involved in the formation of glucose by gluconeo-genesis is
Options
A. the conversion of oxaloacetate to glucose
B. the conversion of lactate to pyruvate
C. the dephosphorylation of glucose-6-phosphate
D. all of the above

5. When living organisms are cooled below some critical body temperature, the metabolic reactions within their cells cease to function properly. This malfunction occurs because
Options
A. their enzymes lose the proper three-dimensional shape
B. enzyme active sites become permanently bound to substrates
C. the activation energy for the reaction is raised
D. there is insufficient molecular motion for substrates to interact

6. Which of the following characteristic enzymes of gluconeogensis is not found in the cytosol?
Options
A. Pyruvate carboxlyase
B. Fructose-l,6-bisphosphatase
C. Both (a) and (b)
D. Glucose-6-phosphatase

7. Metabolic reactions that break down complex molecules into smaller compounds, thereby releasing usable energy for the cell, are best described as
Options
A. biosynthetic
B. catabolic
C. catalytic
D. photosynthetic

8. What would be the molecular formula for a polymer made by linking ten glucose molecules together by dehydration synthesis, if molecular formula for glucose is C6H,206?
Options
A. C₆₀H₁₀₀O₅₀
B. C₆₀H₁₂₀O₆₀
C. C₆₀H₁₀₂O₅₁
D. (C₆H₁₂O₆)10

Comments

More in Biochemistry: