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Worksheets

Questions with 2 answers

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

Free radicals can be formed in the body:

a)

in microsomal oxidation

b)

under the influence of ionizing radiation

c)

in intermediate reactions of endogenous water formation

d)

all of the above are correct

2.

Free radicals are neutralized in the body by:

a)

Aldolase

b)

Vitamin E

c)

Succinate dehydrogenase

d)

All of the above are correct

3.

The enzymatic component of the antioxidant system includes:

a)

Catalase

b)

Ceruloplasmin

c)

Superoxide dismutase

d)

Glutathione peroxidase

4.

The non-enzymatic component of the antioxidant system includes:

a)

Ascorbic acid

b)

Vitamin E

c)

Estrogens

d)

Selenium

5.

The coenzyme NADPH is involved in the reactions of:

a)

Glycolysis

b)

Pentose cycle

c)

Glycogen synthesis

d)

Gluconeogenesis

6.

In the absence of phosphorylase in the liver, the process of:

a)

Glycolysis

b)

Glycogenolysis

c)

Glycogenogenesis

d)

Gluconeogenesis is disrupted

7.

Name the enzyme activated by insulin:

a)

Pepsin

b)

Amylase

c)

Hexokinase

d)

Lipase

8.

When in diabetes mellitus, the following increases:

a)

blood glucose

b)

urine glucose

c)

blood acetone bodies

d)

urine acetone bodies

9.

The Cori cycle links the processes:

a)

glycolysis and the pentose cycle

b)

glycolysis and the Krebs cycle

c)

pentose cycle and the Krebs cycle

d)

glycolysis and gluconeogenesis

10.

Indicate the main function of carbohydrates:

a)

contractile

b)

catalytic

c)

energetic

d)

transport

11.

Carbohydrate digestion is carried out with the participation of the following enzyme:

a)

hexokinase

b)

aldolase

c)

phosphoglucomutase

d)

α-amylase

12.

The main function of liver glycogen:

a)

formation of polyglycoprotein (PVK)

b)

maintenance of a constant blood glucose concentration

c)

formation of lactate

d)

ensuring gluconeogenesis

13.

The importance of the pentose cycle:

a)

donor NADH₂

b)

donor NADPH₂

c)

FADH₂ donor

d)

PVK donor

14.

The Krebs cycle occurs in:

a)

cytoplasm

b)

mitochondria

c)

ribosomes

d)

microsomes

15.

Indicate the metabolite of the aerobic dichotomous pathway:

a)

lactate

b)

pyruvate

c)

ribose-5-phosphate

d)

glycerol

16.

The main function of muscle glycogen:

a)

energy

b)

maintaining a constant glucose concentration in the blood

c)

formation of pentoses

d)

ensuring gluconeogenesis

17.

The main supplier of energy in the cell:

a)

gluconeogenesis

b)

alcoholic fermentation

c)

aerobic breakdown of glucose

d)

glycolysis

18.

With insulin deficiency, the activity of:

a)

phosphorylase

b)

glucose-6-phosphatase

c)

hexokinase

d)

amylase decreases

19.

Hyperglycemia leads to:

a)

increased insulin production

b)

insulin administration

c)

fasting

d)

prolonged physical work

20.

With the participation of the multienzyme complex, the conversion of:

a)

PVC to acetyl-CoA

b)

isocitrate to α-ketoglutarate

c)

fumarate to malate

d)

citrate to isocitrate

21.

Name the salivary enzyme that is involved in starch digestion:

a)

sucrase

b)

lactase

c)

amylase

d)

maltase

22.

Name the intestinal enzyme involved in carbohydrate digestion:

a)

maltase

b)

trypsin

c)

pepsin

d)

lipase

23.

The irreversible reaction of glycolysis is:

a)

aldolase

b)

hexokinase

c)

enolase

d)

lactate dehydrogenase

24.

Name the regulatory enzyme of the Krebs cycle activated by insulin:

a)

citrate synthase

b)

malate dehydrogenase

c)

succinate dehydrogenase

d)

α-ketoglutarate dehydrogenase

25.

Name the hormones with a hyperglycemic effect:

a)

adrenaline

b)

glucocorticoids

c)

thyroxine

d)

glucagon

26.

Diabetes mellitus is characterized by:

a)

increased rate of glycogen synthesis

b)

hypoglycemia

c)

ketonemia

d)

decreased intensity Gluconeogenesis

27.

The coenzyme thiamine pyrophosphate is involved in the reactions of:

a)

glycolysis

b)

pentose cycle

c)

gluconeogenesis

d)

glycogen synthesis

28.

The enzyme involved in the reactions of gluconeogenesis:

a)

aldolase

b)

hexokinase

c)

mutase

d)

phosphorylase

29.

Glucose-6-phosphate can be converted:

a)

into glucose

b)

into glycogen

c)

into lactate

d)

into pyruvate

30.

The regulatory enzyme of gluconeogenesis is:

a)

pyruvate carboxylase

b)

hexokinase

c)

phosphofructokinase

d)

enolase

31.

During intense muscular work, the following increases:

a)

glycolysis

b)

glycogen phosphorolysis

c)

gluconeogenesis in the liver

d)

adrenaline concentration in Blood

32.

Glucagon activates:

a)

glycogen breakdown in the liver

b)

glycogen synthesis

c)

glycogen breakdown in muscles

d)

pentose cycle

33.

To confirm the diagnosis of diabetes mellitus, it is necessary to determine:

a)

blood glucose

b)

blood lipids

c)

blood inorganic phosphate

d)

blood lactic acid

34.

Indicate the cause of hyperglycemia:

a)

thyroxine deficiency

b)

insulin excess

c)

insulin deficiency

d)

growth hormone deficiency

35.

The main pathway of carbohydrate catabolism:

a)

aerobic glucose breakdown

b)

anaerobic glucose breakdown

c)

pentose cycle

d)

glycogenolysis

36.

NADH₂ is formed in reactions:

a)

pentose cycle

b)

glycogen synthesis

c)

gluconeogenesis

d)

Krebs cycle

37.

Indicate the location of glycolysis in the cell:

a)

Mitochondria

b)

Ribosomes

c)

Nucleus

d)

Cytoplasm

38.

Vitamin B2 deficiency disrupts:

a)

Glycogen synthesis

b)

Glycolysis

c)

Krebs cycle

d)

Pentose cycle

39.

Name the hormone with hypoglycemic action:

a)

Glucagon

b)

Thyroxine

c)

Adrenaline

d)

Insulin

40.

The most energetically beneficial process for the body is:

a)

Glycolysis

b)

Glycogenolysis to lactate

c)

Aerobic breakdown of glucose

d)

Pentose cycle

41.

Maintaining constant blood glucose levels involves:

a)

Glycogen breakdown in the liver

b)

Gluconeogenesis

c)

Changes in the rate of glucose transport across the membrane

d)

All of the above are correct

42.

Coenzymes participate in the oxidative decarboxylation of polyglycerol:

a)

NAD

b)

HS-CoA

c)

TPP

d)

Lipoic acid Acid

43.

Significant oxygen consumption is required by:

a)

glycolysis

b)

pentose cycle

c)

gluconeogenesis

d)

aerobic dichromatic pathway

44.

Which bonds are cleaved in starch during its digestion:

a)

ester

b)

hydrophobic

c)

disulfide

d)

glycosidic

45.

The role of fiber:

a)

improves intestinal motility

b)

is a source of glucose

c)

is a source of lipids

46.

The following enzymes are involved in gluconeogenesis:

a)

pyruvate carboxylase

b)

fructose-1,6-bisphosphatase

c)

glucose-6-phosphatase

d)

all of the above are correct

47.

Insulin activates:

a)

gluconeogenesis

b)

glycolysis

c)

lipolysis

d)

glycogen breakdown

48.

Congenital carbohydrate metabolism disorders include:

a)

glycogenoses

b)

lipidoses

c)

atherosclerosis

d)

phenylketonuria

49.

The substrates of gluconeogenesis are:

a)

fatty acids

b)

amino acids

c)

acetyl-CoA

d)

acetone bodies

50.

Indicate the metabolic pathway whose rate decreases in the presence of oxygen:

a)

aerobic glucose breakdown

b)

glycolysis

c)

pentose cycle

d)

gluconeogenesis

51.

The cause of non-insulin-dependent diabetes mellitus is:

a)

decreased number of insulin receptors

b)

decreased insulin production by B cells

c)

genetic defects in insulin synthesis

d)

pancreatic infections

52.

Glucocorticoids activate:

a)

pentose cycle

b)

glycolysis

c)

aerobic glucose breakdown

d)

gluconeogenesis

53.

Functions of the cycle Krebs cycle:

a)

energy

b)

plastic

c)

integrating

d)

CO2 supplier

e)

all of the above are correct

54.

The key enzyme in carbohydrate metabolism is:

a)

lactate dehydrogenase

b)

phosphorylase

c)

hexokinase

d)

ALT

55.

Glucose-6-phosphate can be converted into:

a)

PVK

b)

lactate

c)

nonessential amino acids

d)

fatty acids

56.

The importance of the Cori cycle:

a)

formation of endogenous water

b)

relationship between glycolysis and gluconeogenesis

c)

relationship between glycolysis and the pentose cycle

d)

relationship between glycolysis and the Krebs cycle

57.

The aerobic dichotomous pathway produces:

a)

pentoses

b)

glycerol

c)

lactate

d)

acetyl-CoA

58.

Adrenaline activates:

a)

glycogen breakdown

b)

glycolysis

c)

pentose cycle

d)

Glycogen synthesis

59.

Glucosuria is caused by:

a)

hyperglycemia

b)

hypoglycemia

c)

glycogenoses

d)

impaired digestion of disaccharides

60.

The development of diabetes mellitus is facilitated by:

a)

frequent stress

b)

excess carbohydrates in the diet

c)

viral infections

d)

genetic predisposition

e)

all of the above

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