The process which makes major difference between C3 and C4 Plants is

(1) lycosis

(2) Clavin cycle

(3) photorespiration

(4) respiration

Subtopic:  Photorespiration |
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Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options. 

1. Both process can happen together because the diffusion coefficient of water and CO2 is different. 

2. The above processes happen only during night time

3. One process occurs during the day time and the other night

4. Both processes cannot happen simultaneously

Subtopic:  Factors Affecting Photosynthesis |
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A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?

(1) C4

(2) CAM

(3) Nitrogen-fixer

(4) C3

Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples | Question on C4 Pathway |
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Emerson's enhancement effect and red drop have been instrumental in the discovery of 

(1) two photosystems operating simultaneously

(2) photophosphorylation and cyclic electron transport. 

(3) Oxidative phosphorylation

(4) photophosphorylation and non-cyclic electron transport

Subtopic:  Emerson's Enhancement Experiment |
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In a chloroplast the highest number of protons are found in

(1) lumen of thylakoids

(2) inter membrane space

(3) antenna complex

(4) Stroma

Subtopic:  Light Reaction: Electron Transport |
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In photosynthesis, the light-independent reactions take place at 

1. thylakoid lumen 

2. photosystem l

3. photosystem ll

4. stromal matrix

Subtopic:  Light Reactions :1 | Light Reactions |
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Anoxygenic photosynthesis is characteristic of 

(1) Rhodospirillum

(2) Spirogyra

(3) Chlamydomonas 

(4) Ulva

Subtopic:  Photosynthetic Pigments |
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The correct sequence of cell organelles during photorespiration is 

(1) chloroplast-Golgi bodies-mitochondria

(2) chloroplast-rough endoplasmic reticulum-dictyosomes

(3) chloroplast-peroxisome-mitochondria

(4) chloroplast-vacuole-peroxisome

 

Subtopic:  Photorespiration |
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PGA as the frist CO2 fixation was discovered in photosynthesis of 

(1) bryophyte

(2) gymnosperm

(3) angiosperm

(4) algae

Subtopic:  Light Reaction: Electron Transport | Light Reaction: Photophosphorylation |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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C4 -plants are more efficient in photosynthesis than C3 -plants due to 

1. higher leaf area

2. presence of larger number of chloroplasts in the leaf cells. 

3. presence of thin cuticle

4. lower rate of photorespiration

Subtopic:  C4 Plants Examples | Question on C4 Pathway |
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