Medical Quiz

Nutrition and Human Digestive System Quiz


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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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