Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. Bakeries use yeast in bread-making because it –
a. makes the bread hard
b. makes the bread soft and spongy
c. enhances the food values
d. keeps the bread fresh
Q. The elements known as primary nutrients for plants
a. Nitrogen, Phosphorus and Potassium
b. Nitrogen, Oxygen and Silicon
c. Potassium, Boron and Nitrogen
d. Nitrogen, Phosphorus and Iron
Q. Endoscope is an instrument used to detect the ulcers in the stomach has a long narrow tube (with a small glowing bulb at one end) which is inserted in to the stomach through the mouth contains.
a. small current carrying wire
b. a narrow tube containing water
c. optical fibre
d. a narrow tube containing some chemical solution
Q. Kelp is -
a. Sulphide mineral of iron
b. Partially decomposed vegetalion
c. Sea weed rich in iodine content
d. An aluminium silicate mineral
Q. Which of the following plant hormones are incorrectly paired?
a. abscisic acid- transpiration
b. auxins- apical dominance
c. cytoldnins- senescence
d. gibberlins- bud and seed dormancy
Q. Which of the following is true with reference to blood platelets?
a. They have prominent nuclei
b. They are involved in phagocytosis
c. They have a pigment called haemoglobin
d. They are also called thrombocytes
Q. The second Green Revolution aims at increasing agricultural output to promote
a. Availability of easy credit to big farmers
b. Co-operative farming
c. Inclusive growth
d. Development of rural sector
Q. Food crops comprise.
a. Cotton, Tobacco, Sugarcane
b. Linseed, Castor, Turmeric
c. Foodgrains, Pulses, Edible oilseeds
d. Jute, Cotton, Chilies
Q. Point out the incorrect pair -
a. Green Revolution - A ricul-tural Development
b. White Revolution - Dairy Development
c. Blue Revolution - Development of Fisheries
d. Operation Flood - Irrigation Development
Q. Transpiration increases in –
a. Hot, thy and windy condition
b. Hot, damp and windy condition
c. Cool, damp and windy condition
d. Cool, dry and still condition
Q. Quantity of fresh air required for a man is -
a. 1000 cubic feet of air for every 20 minutes
b. 1000 cubic feet of air for every 20 seconds
c. 1000 cubic feet of air for every 10 minutes
d. 1000 cubic feet of air for every 10 seconds
Q. Dinosaurs were -
a. mammals that became extinct
b. large herbivorous creatures which gave rise to hippopotamus species
c. egg-laying mammals
d. reptiles that became extinct
Q. What is the common in AIDS, mumps and poliomyelitis?
a. Young children get affected most readily
b. No effective vaccine has yet been developed for them
c. These are caused by viruses
d. Their germs can be transmit-ted through blood transfusions
Q. A 'breath test' used by traffic police to check drunken driving uses:
a. potassium dichromate-sulphuric acid
b. potassium permanganate-sulphuric acid
c. turmeric on filter paper
d. silica gel coated with silver nitrate
Q. According to Darwin's Theory of Evolution, long necks in giraffes -
a. arose because of constant attempt to reach leaves on tall trees, generation after generation
b. do not give them any special advantage and is just an accident
c. give them advantage in finding food, because of which those with long necks survive
d. is a result of the special weather prevalent in African Savannah