Top 1000+ Solved Biology (GK) MCQ Questions Answer

From 871 to 885 of 1657

Q. Nitrogenous food is

a. Carbohydrate

b. Lipid

c. Protein

d. Salts

  • c. Protein

Q. The pigment which gives colour to the human skin is –

a. Melanin

b. Rhodopsin

c. Iodopsin

d. Anthocyanin

  • a. Melanin

Q. Which of the following diseases is spread through contaminated food?

a. Malaria

b. Tetanus

c. Typhoid

d. Mumps

  • c. Typhoid

Q. Prawns belong to which family?

a. Crustaceans

b. Fish

c. Amphibians

d. Reptiles

  • a. Crustaceans

Q. Number of the pairs of the spinal nerves are:

a. 30

b. 31

c. 33

d. 32

  • b. 31

Q. How many times does the heart beat approximately in a minute in humans?

a. 25 times

b. 30 times

c. 72 times

d. 96 times

  • c. 72 times

Q. Protein is considered as a -

a. Body builder

b. Energy producer

c. Regulator

d. Bulk increaser

  • a. Body builder

Q. Polio disease is caused by -

a. Bacteria

b. Fungi

c. Virus

d. Worm

  • c. Virus

Q. Blood pressure is controlled by –

a. Adrenal gland

b. Thyroid gland

c. Thymus

d. Corpus luteum

  • a. Adrenal gland

Q. Which of the following is called the powerhouse' of the cell?

a. Nucleus

b. Lysosome

c. Chromosome

d. Mitochondrion

  • d. Mitochondrion

Q. Acquired Immuno Deficiency Syndrome (AIDS) is caused by –

a. protozoa

b. virus

c. fungus

d. bacteria

  • b. virus

Q. The function of Trypsin is to –

a. break down fats

b. synthesize proteins

c. break down proteins

d. break down carbohydrates

  • c. break down proteins

Q. How do most insects respire?

a. Through skin

b. Through gills

c. By tracheal system

d. By lungs

  • c. By tracheal system
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