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Metabolism

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

Chemical digestion of protein begins in what organ?

a)

Stomach

b)

Intestine

c)

Liver

d)

Mouth

2.

A peptide hormone that is primarily responsible for enhancing gastric mucosal growth, gastric motility, and secretion of hydrochloric acid (HCl) into the stomach.

a)

Gastrin

b)

Pepsinogen

c)

Secretin

d)

Tyrpsin

3.

The presence of this chemical activates pepsinogen (inactive) to pepsin (active).

a)

Secretin

b)

Hydrochloric acid

c)

Gastrin

d)

salivary amylase

4.

A hormone that promotes the secretion of pancreatic digestive enzymes such as trypsin, chymotrypsin and carboxypeptidase in their in active forms

a)

Gastrin

b)

Salivary amylase

c)

Hydrochloric acid

d)

Secretin

5.

This enzyme is secreted by intestinal mucosal membrane further hydrolyze the small peptides to amino acids.

a)

Trypsin

b)

Chymotrypsin

c)

Carboxypeptidase

d)

Aminopeptidase

6.

This enzyme is responsible for the hydrolysis of peptide bonds of proteins in the stomach.

a)

Pepsin

b)

Hydrochloric acid

c)

Pepsinogen

d)

Trypsin

7.

Which of the following amino acid is a non essential amino acid?

a)

Alanine

b)

Arginine

c)

Asparagine

d)

All of the above

8.

Degradation of an amino acid takes place in what organ?

a)

Liver

b)

Stomach

c)

Mouth

d)

Intestine

9.

The part of an amino acid that is responsible for the synthesis of UREA in the body.

a)

Amino group

b)

carbon skeleton

c)

Peptide bonds

d)

side chain group

10.

The part of an amino acid that is responsible for the production of energy and energy storage.

a)

Amino group

b)

carbon skeleton

c)

Peptide bonds

d)

side chain group

11.

The active form of pepsinogen

a)

pepsin

b)

Hydrochloric acid

c)

Trypsin

d)

Aminohydrolyase

12.

This is the product of amino acid metabolism that is produced in the liver, transported via the blood to the kidneys and eliminated from the body via urine.

a)

Urine

b)

Urea

c)

Purine

d)

Blood nitrogen

13.

What will be the indication if the patient has high urea in the body?

a)

Diabetis

b)

Kidney disease

c)

Fever

d)

Hyperglycemia

14.

This hormone is produced when there in an entry of food in the stomach and stretches the lining of the stomach.

a)

Gastrin

b)

Sectretin

c)

Pepsin

d)

Trypsin

15.

This hormone stimulates the production of bicarbonate

which helps neutralize the acidified gastric content

a)

Secretin

b)

Gastrin

c)

Chymotrypsin

d)

Aminopeptidase

16.

This is a small, droplet, and semi liquid mixture of partly digested triglycerols which floats in the surface.

a)

Chyme

b)

Lipids

c)

Gastric lipase

d)

Fatty acids

17.

Chemical digestion of lipids begins in what organ?

a)

Stomach

b)

Intestine

c)

Liver

d)

Mouth

18.

An enzyme that is responsible for initiating the digestion of dietary fats in the stomach.

a)

Gastric lipase

b)

Chyme

c)

hydrochloric acid

d)

Pepsin

19.

This substance is responsible for the emulsification of chyme upon entering to small intestines.

a)

Bile salts

b)

Pancreatic lipases

c)

Micelle

d)

Chylomicrons

20.

This alkaline enzyme hydrolyzes ester bonds to form fatty acids and glycerol in the intestine.

a)

Bile salts

b)

Pancreatic lipases

c)

Micelle

d)

Chylomicrons

21.

It is a hydrophobic substance that is made from the mixtures of fatty acids, monoacyglycerols and bile salts

a)

Bile salts

b)

Pancreatic lipases

c)

Micelle

d)

Chylomicrons

22.

This substance is responsible for the transportation of triglycerols from intestines to the bloodstream.

a)

Lipase enzyme

b)

Micelle

c)

Chylomicrons

d)

Pancreatic enzyme

23.

Fatty acids and glycerol that are absorbed by the cell are broken down to the acetyl Co-A for energy or repacked to store as lipids.

a)

True

b)

False

24.

Adipose tissue also serves as a protection against the heat loss and mechanical shock

a)

True

b)

False

25.

This substance has the highest yield of the production of energy.

a)

Lipid

b)

Protein

c)

Carbohydrate

d)

Sugar

26.

These are specialized cells that is responsible for the storage of unused triglycerols.

a)

adipocytes

b)

Adipose tissue

c)

Visceral fats

d)

erythrocytes

27.

A component of triglycerol that will be converted by liver or kidney to produce dihydroxyacetone phosphate.

a)

Glycerols

b)

Fatty acids

c)

Lipids

d)

hydrocarbon chain

28.

This is the product of the reaction of glycerol in liver or kidney that can be utilized to form energy.

a)

Dihydroxyacetone phosphate

b)

Dihydroxyacetone triphosphate

c)

Dihydroxyacetone chloride

d)

Hydroxyacetone phosphate

29.

This will be the product of fatty acids when reacts with coenzyme A in the presence of ATP to produce high energy.

a)

Acyl CoA

b)

Acetyl CoA

c)

NADH

d)

FADH2

30.

This will be the product beta oxidation of Acyl CoA when inside the matrix of mitochondria.

a)

Acetyl CoA

b)

NADH

c)

FADH2

d)

ATP

31.

This is a coenzyme that plays a crucial role in the cellular energy production.

a)

Nicotinamide Adenine Dinucleotide

b)

Adenosine Triphosphate

c)

Adenosine Diphosphate

d)

Cyclic monophosphate

32.

Malic enzyme catalyses the conversion of Malate to which among the following?

a)

Oxaloacetate

b)

Alpha keto glutarate

c)

Pyruvate

d)

Citrate

33.

In the Kreb Cycle, this enzyme is responsible for the formation of citrate by the combination of Acety CoA and Oxaloacetate.

a)

Citrate syntase

b)

Aconitase

c)

Isocitrate dehydrogenase

d)

Alpha ketoglutarate dehydrogenase

34.

The enzyme responsible for the formation of isocitrate.

a)

Citrate syntase

b)

Aconitase

c)

Isocitrate dehydrogenase

d)

Alpha ketoglutarate dehydrogenase

35.

In the ETC, how many ATP will be produced for each mole of NADH oxidized ?

a)

2.5 moles

b)

1.5 moles

c)

1 mole

d)

3 moles

36.

Which of the following is not a product of the reaction KREB CYCLE?

a)

Carbon dioxide

b)

Water

c)

NADH

d)

GTP

37.

This is the site of the Kreb cycle in eukaryotes.

a)

Cytosol

b)

Mitochondria

c)

Cytoplasm

d)

Nucleus

38.

Pyruvate, the end product of glycolysis, enters the citric acid cycle after it has been converted to

a)

Acetaldehyde

b)

Lactic acid

c)

Acetic acid

d)

Acetyl-CoA

39.

Product of Krebs cycle essential for oxidative phosphorylation is _______

a)

NADPH and ATP

b)

Acetyl CoA

c)

CO2 and oxaloacetate

d)

NADH and FADH2

40.

Which of the following is not formed during the Krebs cycle

a)

Lactate

b)

Isocitrate

c)

Succinate

d)

Citrate