Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. Vegetables and fruits should be a part of our diet because they stimulate -
a. Peristalsis
b. Salivation
c. Excretion
d. Respiration
Q. RBCs do not perform aerobic respiration because these do not contain -
a. Mitochondria
b. Nucleus
c. Endoplasmic Reticulum
d. Lysosomes
Q. A cross between homozygous recessive and heterozygous plant is -
a. Back cross
b. Test cross
c. Monohybrid cross
d. Dihybrid cross
Q. A person having blood type B could safely donate blood to persons with blood types -
a. A and O
b. B and O
c. A and AB
d. B and AB
Q. Cooking oil can be converted into vegetables ghee by the process of –
a. Oxidation
b. Hydrogenation
c. Distillation
d. Crystallization
Q. Cellulose is the chief constituent of –
a. cell wall
b. cell membrane
c. secondary wall of xylem
d. body wall of insects
Q. Which one of the following Vitamins helps in maintaining our skin healthy?
a. Vitamin A
b. Vitamin C
c. Vitamin B-12
d. Vitamin E
Q. Which one of the following mixtures is homogeneous?
a. Starch and sugar
b. Methanol and water
c. Graphite and charcoal
d. Calcium carbonate and calcium bicarbonate
Q. Hypoglycemia refers to –
a. high salt concentration in blood
b. high blood sugar level
c. high blood pressure
d. low sugar level in blood
Q. Which of the following process-es does not increase the amount of carbon dioxide in air?
a. Breathing
b. Photosynthesis
c. Burning of petrol
d. Aerobic decay of vegetation