Biochemistry MCQ (BP203 T) I (QUIZ - 16) F. Y. B. Pharm SEM –II (UNIT- 2)

 

BIOCHEMISTRY (BP203T) MCQ (Quiz-16) 

Carbohydrate Metabolism 

MULTIPLE CHOICE QUESTIONS

F. Y. B. PHARM  SEM-II (UNIT - 2)

AS PER PCI SYLLABUS

1. The number of molecules of ATP produced by the total oxidation of acetyl CoA in TCA cycle is

  A) 12  
B) 10
C) 8
D) 6

... Answer is : A) 12

2. Fatty acids cannot be converted into carbohydrates in the body as the following reaction is not possible.

A) Fructose 1,6-bisphosphate to fructose-6- phosphate
B) Conversion of glucose-6-phosphate into glucose
C) Formation of acetyl CoA from fatty acids
D) Transformation of acetyl CoA to pyruvate

... Answer is : D) Transformation of acetyl CoA to pyruvate

3. One molecule of glucose gives ______ molecules of CO 2 in EM-TCA cycle.

A) 1
B) 2
C) 3
D) 6

... Answer is : D) 6

4. The 4 rate limiting enzymes of gluconeogenesis are

A) Glucokinase, Pyruvate carboxylae phosphoenol pyruvate carboxykinase and glucose-6-phosphatase
B) Pyruvate kinase, pyruvate carboxylase, phosphoenol pyruvate carboxykinase and glucose-6-phosphatase
C) Pyruvate carboxylase, phosphoenol pyruvate carboxykinase, fructose1,6 diphosphatase and glucose-6-phosphatase
D) Phospho fructokinase, pyruvate carboxylase, phosphoenol pyruvate carboxykinase and fructose 1, 6 diphosphatase

... Answer is : C) Pyruvate carboxylase, phosphoenol pyruvate carboxykinase, fructose1,6 diphosphatase and glucose-6-phosphatase

5. Fluoride inhibits ______ and arrests glycolysis.

A) Enolose
B) Aconitase
C) Succinate dehydrogenase
D) Glyceraldehyde-3-phosphate dehydrogenase

... Answer is : A) Enolose

6. Amylo 1, 6 glucosidase is called .

A) Glucantransferase
B) Phosphorylase
C) Branching enzyme
D) debranching enzyme

... Answer is : D) debranching enzyme

7. Glycogen while being acted upon by active phosphorylase is converted first to

A) Glucose
B) 6-Phosphogluconic acid
C) Glucose 1-phosphate and Glycogen with 1 carbon less
D) Glucose-6-phosphate and Glycogen with 1 carbon less

... Answer is : D) Glucose-6-phosphate and Glycogen with 1 carbon less

8. Reactivation of inactive liver phosphorylase is normally favoured by

A) Glucagon
B) ACTH
C) Epinephrine
D) Insulin

... Answer is : A) Glucagon

9. The hydrolysis of Glucose-6-phosphate is catalysed by a specific phosphatase which is found only in

A) Plasma
B) Striated muscle
C) Liver, intestines and kidneys
D) Brain, spleen and adrenals

... Answer is : C) Liver, intestines and kidneys

10. Which one of the following is a rate limiting enzyme of gluconeogenesis?

A) Pyruvate carboxylase
B) Hexokinase
C) Phsophofructokinase
D) Pyruvate kinase

... Answer is : A) Pyruvate carboxylase