In the leaves of C4 -plants malic acid synthesis during CO2 fixation occurs in 

(1) epidermal cells

(2) mesophyll cells

(3) bundle sheath

(4) guard cells

Subtopic:  C4 Plants Examples | Question on C4 Pathway |
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Please attempt this question first.

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The wavelength of light abosorbed by Pr form of phytochrome is :

(1) 640 nm

(2) 680 nm

(3) 720 nm

(4) 620 nm

Subtopic:  Photosystems |
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In photosystem-I, the first electron acceptor is :

(1) ferredoxin

(2) cytochrome

(3) plastocyanin

(4) an iron-sulphur protein

Subtopic:  Photosystems |
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During photorespiration, the oxygen consuming reaction(s) occur in :

(1) stroma of chloroplasts and mitochondria

(2) stroma of chloroplasts and peroxisomes

(3) grana of chloroplasts and peroxisomes

(4) stroma of chloroplasts

Subtopic:  Photorespiration |
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Photorespiration is favoured by

(1) high O2 and low CO2 concentration

(2) low O2 and high CO2 concentration

(3) low light intensity

(4) low temperature.

Subtopic:  Photorespiration |
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NEET 2022 - Target Batch - Aryan Raj Singh

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The C4 plants grow very efficiently in warm climates because they

(1) consume fewer ATP molecules for glucose synthesis

(2) minimize photorepsiratory losses

(3) have more efficient chloroplasts

(3) contain enzymes which are not inactivated at high temperatures.

 

Subtopic:  C4 Plants Examples | Question on C4 Pathway |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Following is needed in the ionic form during non-cyclic photophosphorylation but not during cyclic photophosphorylations in higher plants. 

(1) copper

(2) iron

(3) manganese

(4) zinc

Subtopic:  Light Reactions :1 | Light Reactions :2 | Light Reactions |
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NEET 2022 - Target Batch - Aryan Raj Singh

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Production of NADPH in a chloroplast takes place during

(1) cyclic photophosphorylation

(2) non-cyclic photophosphorylation

(3) series photophosphorylation

(4) substrate level photophosphorylation.

Subtopic:  Light Reactions :2 | Light Reactions |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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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 |
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NEET 2022 - Target Batch - Aryan Raj Singh

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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 take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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