The photoautotrophic organisms that do not split water to obtain reducing power are 

(1) purple bacteria 

(2) cyanobacteria

(3) green plants

(4) none of these

Subtopic:  Historical View: Experiments |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Dark reaction occurs

(1) only in light

(2) only in the absence of light

(3) independent of light

(4) both (1) and (3).

Subtopic:  Dark Reaction: Biosynthetic Phase |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Photorespiration, usually occurs in

(1) one cell organelle

(2) two cell organelles

(3) three cell organelles

(4) four cell organelles.

Subtopic:  Photorespiration |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which of the following statements about phytochrome is true?

1. Pr absorbs yellow light and becomes Pfr 

2. Pr absorbs red light and becomes Pfr 

3. Pfr absorbs red light and becomes Pr 

4. Pfr absorbs yellow light and becomes Pr .

Subtopic:  Photosystems |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Blackman's law is related to 

(1) respiration

(2) transpiration

(3) root pressure

(4) photosynthesis.

Subtopic:  Historical View: Experiments |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Who discovered photophosphorylation?

(1) Arnon et. al.

(2) Von Mayer

(3) Clavin et.al.

(4) Hill

Subtopic:  Light Reaction: Photophosphorylation |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Photosynthetic bacteria do not contain

(1) quantasome

(2) PS-I and PS-II

(3) PS-II

(4) PS-I.

Subtopic:  Photosystems |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


The photorespiratory carbon-oxidation cycle involves the interaction of

1. chloroplast

2. mitochordria

3. peroxisomes

4. all of these.

Subtopic:  Photorespiration |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Photorespiration in C3 plants starts from:

(1) phosphoglycerate

(2) phosphoglycolate

(3) Glycerate

(4) glycine.

Subtopic:  Photorespiration |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Hill reaction occurs in:

(1) high altitude plants

(2) total darkness

(3) absence of water

(4) presence of ferricyanide

Subtopic:  Light Reaction: Photophosphorylation |
To view explanation, please enrol in the course below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level: