Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. Which of the following metals is present in chlorophyll?
a. Beryllium
b. Magnesium
c. Calcium
d. Barium
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
Q. Which one of the following plants is used for green manuring in India?
a. Wheat
b. Sun hemp
c. Cotton
d. Rice
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
Q. Which of the following acids is synthesized in human stomach?
a. Sulphuric acid
b. Nitric acid
c. Hydrochloric acid
d. Phosphoric acid
Q. Bio-magnification implies -
a. Toxic matters are magnified
b. Living beings are magnified
c. Light is magnified
d. Food is magnified
Q. Which of the following can be used for biological control of mosquitoes?
a. DDT
b. Gambusia
c. Oil
d. Ointments
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