Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. The orange colour of carrot is because of –
a. it grows in the soil
b. Carotene
c. it is not exposed to sun-light
d. the entire plant is orange in colour
Q. Ginger is a stem and not a root because
a. It stores food material
b. It grows horizontally in the soil
c. It has nodes and internodes
d. It lacks chlorophyll
Q. Adherent mucoid alkaline substance covering the inner lining of stomach is to -
a. digest starch
b. act against bacteria
c. prevent the action of pepsin of mucosa
d. prevent viral infection
Q. Which of the following processes are associated with plants during dark period?
a. Photosynthesis and respiration
b. Respiration and transpiration
c. Transpiration and conduction
d. Conduction and respiration
Q. Two richest known sources of edible protein are -
a. meat and eggs
b. milk and vegetables
c. soyabean and groundnut
d. some type of algae and other micro- organisms
Q. Reserpine is used to -
a. reduce high blood pressure
b. increase blood pressure when it is low
c. alleviate pain
d. cure arthritis
Q. Vitamin E is particularly important for
a. development of teeth
b. carbohydrate metabolism
c. normal activity of sex glands
d. general health of epithelial tissues
Q. What happens to a person who receives the wrong type of blood?
a. All the arteries constrict
b. All the arteries dialates
c. The RBCs agglutinate
d. The spleen and lymphnodes deteriorate
Q. Maximum photosynthetic activity occurs in -
a. blue and red region of light
b. green and yellow region of light
c. blue and orange region of light
d. violet and orange region of light
Q. Radioimmunoassay (RIA) is a therapy used -
a. to cure lung cancer
b. to cure AIDS
c. to cure fractures in bones
d. to detect antibodies and hormones present in the blood samples
Q. Fat soluble vitamins are –
a. Tocopherol, Niacin, Cyanocobalamin
b. Calciferol, Carotene, Tocopherol
c. Ascorbic acid, Calciferol, Riboflavin
d. Thiamine, Carotene, Biotin
Q. What is "ALZHEIMER'S" disease?
a. It is a disorder of the brain
b. It affects liver
c. It affects kidney
d. It affects human immune system
Q. Grey hair is caused due to –
a. aging of epidermal cells
b. death of dermal cells
c. loss of sebum in epidermal cells
d. loss of melanin in epidermal cells
Q. Stomatal opening is based on
a. Exosrnosis
b. Endosmosis
c. Plasmolysis in guard cells
d. Decrease in concentration of cell sap
Q. Optics is the study of:
a. Nature and properties of light
b. Old age, its phenomenon, disease etc
c. Disease of the nervous system
d. Symbolic representations