set 4 MCQ Questions & Answers Detailed Explanation

Question : 1

Which element is required in comparatively least quantity for the growth of plant?

a) N

b) P

c) Zn

d) Ca

Question : 2

Which one of the following organs in the human body is most affected due to shortage of oxygen?

a) Skin

b) Intestine

c) Kidney

d) Brain

Question : 3

Which of the following statements are wrong?

1. Leucocytes disintegrate in the spleen and liver.
2. RBC, WBC and blood platelets are produced in bone marrow.
3. Neutrophils bring about destruction and detoxification of toxins of protein origin.
4. The important function of lymphocytes is to produce antibodies.

a) 1 and 3

b) 1 and 4

c) 1 and 2

d) 2 and 3

Question : 4

Hydroponics is a technique in which plants are grown in

a) water saturated sand

b) balanced nutrient solution

c) green house

d) purified distilled water

Question : 5

Which part of the plant do not perform photosynthesis?

a) Guard cell of stomata

b) Mesophyll cells of leaf

c) Cactus stem

d) Leaf epidermis

Question : 6

End product of fermentation of sugars is

a) CO₂

b) alcohol and CO₂

c) H₂O and CO₂

d) alcohol