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Which of the following does not represent the internal factors which affect photosynthesis? 

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By Expert Faculty of Sri Chaitanya
a
Atmospheric CO2 concentration
b
Number and size of leaves.
c
Age of leaf and orientation
d
Internal CO2 concentration and amount of chlorophyll.

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detailed solution

Correct option is A

Atmospheric CO2 concentration, light, water and temperature are the external factors that affect photosynthesis. Internal factors which affect photosynthesis include the number, size, age and orientation of leaves, mesophyll cells and chloroplasts, internal CO2 concentration and the amount of chlorophyll. The plant or internal factors are dependent on the genetic predisposition and the growth of the plant.


Similar Questions

The plant factors depend on:
(a) environmental conditions 
(b) genetic predisposition
(c) growth of the plant

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