set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Photosynthesis occurs in

a) Peroxisome

b) Chloroplast

c) Mitochondria

d) Nucleus

Question : 2

‘Phloem’ in plants is mainly responsible for

a) Transportation of water

b) Transportation of oxygen

c) Transportation of amino acid

d) Transportation of food

Question : 3

Most of the oxygen on earth is produced by

a) Paddy fields

b) Trees

c) Algae

d) Grasses

Question : 4

What rays of sunlight are mostly utilized by chlorophyll in photosynthesis?

a) Blue

b) Green

c) Yellow

d) Red

Question : 5

Which of the following types of light are strongly absorbed by plants?

a) Yellow and violet

b) Indigo and yellow

c) Blue and red

d) Violet and orange

Question : 6

Which one of the following gases is used by plants in photosynthesis?

a) Sulphur dioxide

b) Chlorine

c) Carbon dioxide

d) Ammonia