The mean photosynthetic rates of C_3 and C_4 | vedclass

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(C) Photosynthetic efficiency varies between plant types due to their carbon fixation pathways.$C_3$ plants,such as wheat and rice,have a lower photos

Vedclass · Accepted Answer

$22$ mg and $75$ mg

Vedclass · Answer

(C) Photosynthetic efficiency varies between plant types due to their carbon fixation pathways.$C_3$ plants,such as wheat and rice,have a lower photosynthetic rate compared to $C_4$ plants under optimal conditions.The mean photosynthetic rate for $C_3$ plants is approximately $20-25$ mg of $CO_2$ per $dm^2$ per hour.In contrast,$C_4$ plants,such as maize and sugarcane,exhibit a higher photosynthetic rate,typically ranging from $50-80$ mg of $CO_2$ per $dm^2$ per hour.Therefore,the values $22$ mg and $75$ mg represent the approximate mean rates for $C_3$ and $C_4$ plants,respectively.

The mean photosynthetic rates of $C_3$ and $C_4$ plants per $dm^2$ per hour are respectively:

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