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

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Q37:

Phosphoenol pyruvate (PEP) is the primary CO₂ acceptor in:

1. C₄ plants	2. C₂ plants
3. C₃ and C₄ plants	4. C₃ plants

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Q16:

The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of:
1. 1 molecule of the 3-C compound
2. 1 molecule of the 6-C compound
3. 1 molecule of a 4-C compound and 1 molecule of the 2-C compound
4. 2 molecules of the 3-C compound

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Q32:

In the leaves of C₄ plants, malic acid formation during CO₂ fixation occurs in the cells of :

1. mesophyll	2. bundle sheath
3. phloem	4. epidermis

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Q55:

Study the pathway given below-

In which of the following options, correct words for all the three blanks A, B and C are indicated?

	A	B	C
1.	Fixation	Transamination	Regeneration
2.	Fixation	Decarboxylation	Regeneration
3.	Carboxylation	Decarboxylation	Reduction
4.	Decarboxylation	Reduction	Regeneration

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Q62:

Cyclic photophosphorylation results in the formation of

1.	NADPH	2.	ATP and NADPH
3.	ATP, NADPH and O₂	4.	ATP

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Q41:

For the synthesis of one glucose molecule, the Calvin cycle operates for:

1. 2 times	2. 4 times
3. 6 times	4. 8 times

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Q26:

In photosynthesis, energy from light reaction to dark reaction is transferred in the form of

1. ADP	2. ATP
3. RUDP	4. Chlorophyll

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Q28:

What is not true regarding the factors affecting the rate of photosynthesis?

1.	There is a linear relationship between incident light and carbon dioxide fixation rates at low light intensities.
2.	Current availability of carbon dioxide levels is limiting to the C4 plants.
3.	C4 plants respond to higher temperatures and show higher rates of photosynthesis
4.	Water stress causes the stomata to close, hence reducing the availability of carbon dioxide

Subtopic: Factors Affecting Photosynthesis |

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Q20:

Identify the option where the name of the scientist is not correctly matched with discovery related to understanding of the process of photosynthesis:

1.	Cornelius van Neil	Oxygen evolved comes from water
2.	T W Engelmann	First absorption spectrum of chlorophyll a
3.	Joseph Priestley	Plants restore to the air whatever breathing animals remove
4.	Jan Ingenhousz	Sunlight is essential for photosynthesis

Subtopic: Historical View: Experiments |

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