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Standard IX

Biology

Respiration in Plants

Intake of C...

Question

Intake of $C O_{2}$ and outlet of $C O_{2}$ is equal in photosynthesis and respiration, then the condition is known as

Red drop

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Solarization

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Null point

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Compensation point

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Solution

The correct option is C Compensation point
The compensation point is the amount of light intensity on the light curve, where the rate of photosynthesis exactly matches the rate of respiration. At this point, the uptake of $C O_{2}$ through photosynthetic pathways is exactly matched to the respiratory release of carbon dioxide, and the uptake of $O_{2}$ by respiration is exactly matched to the photosynthetic release of oxygen.

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Similar questions

Q. When the level of

C O_{2}

used in photosynthesis is equal to the amount of

C O_{2}

released by respiration and photorespiration it is called ___________.

Q. When the level of

C O_{2}

used in photosynthesis is equal to the amount of

C O_{2}

released by respiration and photorespiration it is called ___________.

Q. Assertion :The atmospheric concentration of

C O_{2}

at which photosynthesis just compensates for respiration is referred to as

C O_{2}

compensation point. Reason: The

C O_{2}

compensation point is reached when the amount of

C O_{2}

uptake is less than that generated through respiration, because the level of

C O_{2}

in the atmosphere is more than that required for achieving

C O_{2}

compensation point.

	Photosynthesis	Respiration
Raw materials	Water and $C O_{2}$	Glucose and oxygen
Products	Glucose and oxygen	Water and $C O_{2}$
Purpose	Store energy	Release energy

Given in the box is the comparison of photosynthesis and respiration. The process of photosynthesis and respiration can be thought of as a cycle because of which of the following?

Two points in which photosynthesis and respiration in plants are opposite to each other.

(a) In photosynthesis, $C O_{2}$ is consumed while in respiration $C O_{2}$ is given out.
(b) The photosynthesis is a catabolic process while respiration is an anabolic process.

Which is true?

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Intake of CO2 and outlet of CO2 is equal in photosynthesis and respiration, then the condition is known as

Intake of $C O_{2}$ and outlet of $C O_{2}$ is equal in photosynthesis and respiration, then the condition is known as