photosynthesis - Category wise Question and Answer Practice Test with Solutions

Question : 16 [UP (Pre) 2015]

Most of the oxygen on earth is produced by

a) Paddy fields

b) Trees

c) Algae

d) Grasses

Question : 17 [PSC (Pre) 2019]

Light energy changes into the chemical energy by which of the following process?

a) By spewing

b) By respiration

c) By photosynthesis

d) Electrolysis

Question : 18 [PSC (Pre) 2019]

Artificial light can

a) Not bring about photosynthesis

b) Bring about photosynthesis

c) Synthesise chlorophyll

d) Destroy chlorophyll

Question : 19 [UPRO/ARO (Mains) 2014]

Oxygen, which is liberated during photosynthesis comes from

a) Phosphoglyceric acid

b) Chlorophyll

c) Carbon dioxide

d) Water

Question : 20 [RAS/RTS (Pre) 1992]

It happens during the photosynthesis in green plants

a) Taking oxygen and releasing nitrogen

b) Taking oxygen and releasing CO2

c) Taking CO2 and releasing oxygen

d) Taking nitrogen and releasing oxygen