Top 1000+ Solved Biology (GK) MCQ Questions Answer

From 631 to 645 of 1657

Q. Which of the following metals is present in chlorophyll?

a. Beryllium

b. Magnesium

c. Calcium

d. Barium

  • b. Magnesium

Q. What vessel carries the venous blood to the lungs for oxygenation?

a. Pulmonary arteries

b. Pulmonary veins

c. Pulmonary arteriovenous shunt

d. Right ventricle

  • a. Pulmonary arteries

Q. The main thinking part of the brain is –

a. midbrain

b. hypothalamus

c. forebrain

d. hindbrain

  • c. forebrain

Q. Enzymes are –

a. Micro organisms

b. Proteins

c. Inorganic compounds

d. Moulds

  • b. Proteins

Q. The total number of bones in the human body is :

a. 206

b. 260

c. 306

d. 360

  • a. 206

Q. Bile is secreted by :

a. Gall bladder

b. Liver

c. Bile duct

d. Pancreas

  • b. Liver

Q. Which one of the following is a mixed fertilizer?

a. Urea

b. CAN

c. Ammonium sulphate

d. NPK

  • d. NPK

Q. Which one of the following plants is used for green manuring in India?

a. Wheat

b. Sun hemp

c. Cotton

d. Rice

  • b. Sun hemp

Q. In onion the edible part is –

a. Leaf

b. Root

c. Stern

d. Flower

  • a. Leaf

Q. The heat treatment applied to milk before distribution to stabilize and to remove disease causing bacteria is called as –

a. Pasteurisation

b. Fermentation

c. Coagulation

d. Homogenisation

  • a. Pasteurisation

Q. Which of the following is a monogenetic parasite?

a. Hydra

b. Fasciola

c. Ascaris

d. Earthworm

  • c. Ascaris

Q. Which of the following acids is synthesized in human stomach?

a. Sulphuric acid

b. Nitric acid

c. Hydrochloric acid

d. Phosphoric acid

  • c. Hydrochloric acid

Q. Bio-magnification implies -

a. Toxic matters are magnified

b. Living beings are magnified

c. Light is magnified

d. Food is magnified

  • a. Toxic matters are magnified

Q. Which of the following can be used for biological control of mosquitoes?

a. DDT

b. Gambusia

c. Oil

d. Ointments

  • b. Gambusia

Q. Haemophilia is a genetic disorder which leads to -

a. decrease in haemoglobin level

b. rheumatic heart disease

c. decrease in WBOC

d. non-clotting of blood

  • d. non-clotting of blood
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