Biology MCQs
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Which of the following substances is a direct product of the action of the enzyme glycogen phosphorylase (glycogenolysis):
- A. Glucose-6-phosphate
- B. Glucose
- C. Glucose-1-phosphate
- D. None of the mentioned above
- Correct Answer: Option C
Which of the following metabolites is not an allosteric modulator of the main regulatory enzyme of glycolysis:
- A. ATP
- B. Glucose-6-phosphate
- C. AMP
- D. Fructose-2,6-bisphosphate
- Correct Answer: Option B
Which of the following enzymes involved in the glycolysis is the major regulatory enzyme of this pathway:
- A. Phosphofructokinase-2 (PFK-2)
- B. Aldolase
- C. Phosphoglycerate kinase
- D. Phosphofructokinase-1 (PFK-1)
- Correct Answer: Option D
Which of the following co-enzymes does not participate in the pyruvate dehydrogenase complex:
- A. pyridoxalphosphate
- B. thiamine pyrophosphate
- C. coenzyme-A
- D. lipoic acid
- Correct Answer: Option A
The absorption of glucose through the mucous membrane of enterocytes in the human is performed via one of the listed types of transport proteins. Which is that?
- A. glucose transporter type 2 (GLUT2)
- B. glucose transporter type 5 (GLUT5)
- C. Na-dependent glucose transporter (SGLT1)
- D. glucose transporter type 1 (GLUT1)
- Correct Answer: Option C