The first stable product of Calvin cycle and Hatch and Slack cycle are

4- C and 3- C compounds

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4- C and 6- C compounds

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3- C and 4- C compounds

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5- C and 4- C compounds

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Solution

The correct option is C 3- C and 4- C compounds
The Calvin cycle and Hatch-Slack cycles are the two carbon dioxide fixation pathways. The Calvin cycle is also called as $C_{3}$ cycle because the first stable product is a three carbon compound, called as phosphoglyceric acid. The Hatch slack cycle is called as $C_{4}$ cycle because the first stable product is a four carbon compound- oxalo acetic acid.

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Similar questions

Q. Match the column.

	List I		List II
1	Emerson effect	a	$C_{4}$ cycle
2	Hill reaction	b	Photolysis
3	Calvin cycle	c	$C_{3}$ cycle
4	Hatch and Slack cycle	d	Photosystem- I and II

Q. Assertion: In C3 cycle, the first stable compound is 3C compound
Reason: In C4 plants, Calvin cycle is absent

Q. The first stable product formed during calvin cycle in

C_{3}

plants is:

Question 23
Some of these terms / chemicals are asociated with the $C_{4}$ cycle. Explain.
(a) Hatch Slack pathway (b) Calvin cycle
(c) PEP carboxylase (d) Bundle sheath cells

Q. The first stable product identified in Calvin cycle of

C_{3}

and

C_{4}

plants are respectively

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