Q.

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

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By Expert Faculty of Sri Chaitanya

Atmospheric CO2 concentration

Number and size of leaves.

Age of leaf and orientation

Internal CO2 concentration and amount of chlorophyll.

answer is 1.

(Detailed Solution Below)

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Detailed Solution

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.

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