Practical lesson 4

OXIDATIVE DECARBOXYLATION OF PIRUVIC ACID. KREBS CYCLE

1.D

2. E

3. E

4.B

5.A

6.E

7.D

8.D

9.C

10. B

QUESTIONS FOR TEST CONTROL MODULE 3

PRACTICAL LESSON 1

CARBOHYDRATES: BIOLOGICAL FUNCTIONS AND CLASSIFICATION. METABOLIC PATHWAY OF CARBOHYDRATES.

GLYCOGEN METABOLISM

Choose the correct answer:

11. Which one of the following pairs is in correct?

Substrate	Products of hydrolysis
A. Maltose	Glucose+ glucose
B. Isomaltose	Glucose+ glucose
C. Sucrose	Glucose+ fructose
D. Lactose	Glucose+ galactose
E. Starch	Glucose+ glucose

12. Which one of the following pairs is in correct?

Enzyme	Substrate
A. α-amylase	Maltose
B Maltase	Maltose
C. Isomaltase	Isomaltose
D. Lactase	Lactose
E. Sucrase	Sucrose

13. Which one of the following pairs is in correct?

Enzyme	The bond, which is broken by enzyme
A. α-amylase	α- 1.4 glycosidic bond
B Maltase	α- 1.4 glycosidic bond
C. Isomaltase	α- 1.4 glycosidic bond
D. Lactase	β- 1.4 glycosidic bond
E. Sucrase	α- 1.2 glycosidic bond

4. What the statement concerning the saliva α- amylase is in correct?

A. It is the hydrolase;

B. It is the α- 1.4. endoglycosidase;

C. It has pH opt 6.8-7.2;

D. It converts starch to dextrines;

E. It converts starch to maltose.

5. Foodstuffs containing the high level of the carbohydrates are following instead….

A. potato and bread;

B. meal;

C. sweet fruits and vegetables;

D. honey;

E. eggs.

6. Hormones increasing the level of glucose in the blood are following…. Choose the one in correct answer.

A. glucagon;

B. adrenaline;

C. insulin;

D. cortisol;

E. thyroxin.

7. Hormone decreasing the level of glucose in the blood is….

A. glucagon;

B. adrenaline;

C. insulin;

D. cortisol;

E. thyroxin.

8. Key enzyme of glycogenesis is…

A. α- amylase;

B. maltase;

C. hexokinase;

D. glycogen synthase;

E. glycogen phosphorylase.

9. Key enzyme of glycogenolysis is…

A. α- amylase;

B. maltase;

C. hexokinase;

D. glycogen synthase;

E. glycogen phosphorylase.

10. The mechanism of regulation key enzymes of glycogenesis and glycogenolysis is…

A. partial proteolysis;

B. competitive inhibition;

C. covalent modification;

D. noncompetitive inhibition;

E. allosteric inhibition.

PRACTICAL LESSON 2