Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. Free-living nitrogen fixing micro- organisms are -
a. Rhizobia
b. Soil fungi
c. Vesicular arbuscular mycorrhiza
d. Blue green algae
Q. Vegetable oils are converted into solid fat (ghee) by -
a. Hydrolysis
b. Addition of agar
c. Oxidation using air and a catalyst
d. Hydrogenation
Q. A drug which helps in controlling fever is
a. Ibuprofen
b. Penicillin
c. Paracetamol
d. Corticosteroid
Q. The method not used as a Biological control is :
a. Use of predators of a pest.
b. Pheromone traps
c. Use of pesticides
d. Use of neem extracts
Q. The tissue in man where no cell division occurs after birth is -
a. skeletal
b. nerves
c. connective
d. germinal
Q. The brain of human adult weighs about -
a. 1200 - 1300 gm
b. 1600 - 2000 gm
c. 500 - 800 gm
d. 104 - 200 gm
Q. Which of the following pairs is incorrectly matched?
a. Vitamin C- Scurvy
b. Vitamin K - Haomorrhage
c. Vitamin A Night Blindness
d. Vitamin E - Rickets
Q. Maximum harm to a tree is caused by
a. Loss of half of its leaves
b. loss of all leaves
c. loss of half of its branches
d. loss of its bark
Q. Which one of the following is not a plant product?
a. Caffeine
b. Pipeline
c. Nicotine
d. Saccharin