Medical Quiz

Nutrition and Human Digestive System Quiz


Which of the following is not an example of assimilation?

A. Amino acids are used to synthesize the protoplasm of cells.

B. Excess glucose is converted to glycogen in the liver.

C. The deamination of excess amino acids to form urea.

D. Excess of amino acid is converted to glycogen in the liver

• Pepsin
• Trypsin
• Erepsin

All these three enzymes are involved in the breakdown of

A. fats

B. proteins

C. carbohydrates

D. fibre

What pushes food from the mouth to the stomach?

A. Stomach

B. Gall bladder

C. Esophagus

Which one is not true about function of liver?

A. detoxification

B. storage of nutrients

C. metabolism of digested food

D. storage of bile

The total amount of energy released when one gram of food is oxidised completely is called ……………….

A. energy value

B. energy consumption

C. energy output

D. energy debt

Protein is broken down into ______________ before they are asborbed into the small intestines.

A. fatty acids

B. amino acids

C. citric acid

D. hydrochiloric

What churns food and breaks it down further using strong acids?

A. Stomach

B. Salivary glands

C. Liver

physical digestion involves chewing and …………

A. enzyme reactions

B. peristalsis

C. decomposition process of complex molecules into simple molecules

What stores bile?

A. Colon

B. Gall Bladder

C. Small Intestine

What begins the process of mechanical breakdown?

A. the mouth

B. the esophagus

C. the pancreas

Function of parietal cells in gastric gland is to ………….

A. secrete pepsinogen

B. secrete hydrochloric acid

C. secrete mucus

D. secrete gastric juices

Which of the following explains digestion?

A. It is the process of breaking down food into simple substance our body can absorb.

B. It is the elimination of undigested food that were not absorb by the body.

C. It is the absorption and circulation of nutrients in the body.

D. It the process of supplying the cell with nutrients

Fatty acids and glycerol will be absorbed through epithelial cells into …………..

A. lacteal

B. blood capillaries

What produces chemicals that break down fats, starches and proteins?

A. Pulmonary artery

B. Pancreas

C. Pituitary gland 

Which vessel brings nutrient-rich, oxygen-poor blood from the small intestines to the liver?

A. hepatic vein

B. hepatic portal vein

C. hepatic artery

D. inferior vena cava

Which of the following enzymes digests proteins?

A. Trypsin

B. Lipase

C. Peptidases

D. Amylase

What begins the process of chemical breakdown?

A. Liver

B. Salivary glands

C. Colon

What is the function of bile?

A. digests fats

B. emulsifies fats

C. accumulates fats

D. absorbs fats

The diagram shows the human alimentary canal.
Which of the organs are related to digestion of carbohydrates?

A. R and T only

B. P and Q only

C. S and T only

D. Q, R, S, and T

The enzymes secreted by pancreas are pancreatic amylase, lipase and …………………………

A. erepsin

B. trypsin

C. maltase

D. sucrase

What produces the bile used to break down fats?

A. Liver

B. Large Intestine

C. Mouth

Which of the following process do not take place in the colon of the human body?

A. absorption of water

B. absorption of minerals

C. absorption of fatty acids

D. absorption of Vitamin B

Which of the following are true for bile?

I Prepares acid medium for action of enzymes.
II Neutralizes the acids in the stomach.
III Speeds up the digestion of fats.
IV Helps in proteins digestion.

A. I and II only

B. II and III only

C. III and IVonly

D. I and IV only


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