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Explain why respiration is said to be a reversal of photosynthesis? - Biology

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Question

Explain why respiration is said to be a reversal of photosynthesis?

Short Note

Solution

Respiration is said to be the reverse of photosynthesis due to the following reasons:

(1) In respiration, the organic food is broken down into its inorganic compounds, i.e., CO2 and H2O, while in photosynthesis the organic food is synthesized from its inorganic components, i.e., CO2 and H2O.

(2) In respiration, CO2 is given out, while in photosynthesis CO2 is consumed.

(3) In respiration, O2 is consumed, while in photosynthesis O2 is released or evolved.

(4) In respiration, energy is liberated, while in photosynthesis energy is absorbed.

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Respiration and Photosynthesis
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Chapter 6: Photosynthesis - Exercise 2 [Page 75]

APPEARS IN

Frank Biology [English] Class 10 ICSE
Chapter 6 Photosynthesis
Exercise 2 | Q 4.02 | Page 75
Selina Concise Biology [English] Class 9 ICSE
Chapter 7 Respiration in Plants
Short answer type | Q 3 | Page 62
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