A - Productivity of C_3 plants is higher than | vedclass

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(D) $C_4$ plants are more productive than $C_3$ plants because they possess a mechanism to minimize photorespiration,which is a wasteful process that

Vedclass · Accepted Answer

$A$ is false but $R$ is true.

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(D) $C_4$ plants are more productive than $C_3$ plants because they possess a mechanism to minimize photorespiration,which is a wasteful process that reduces the efficiency of carbon fixation.Therefore,the statement $A$ is false because $C_3$ plants have lower productivity compared to $C_4$ plants.Photorespiration is a process that occurs in $C_3$ plants due to the oxygenase activity of the enzyme $RuBisCO$,which binds to $O_2$ instead of $CO_2$ under certain conditions.Thus,the statement $R$ is true.Hence,the correct option is $D$.

$A -$ Productivity of $C_3$ plants is higher than $C_4$ plants.
$R -$ Photorespiration occurs in $C_3$ plants.

Similar Questions

Provide the differences between:
$(1)$ Light reaction (Light phase) and Dark reaction (Biosynthetic phase)
$(2)$ Mesophyll cells and Bundle sheath cells

Which one of the following categories of organisms does not evolve oxygen during photosynthesis?

In which of the following is light energy stored in the form of chemical energy?

Maximum photosynthesis occurs by ..........

$A -$ Calvin cycle starts with the carboxylation of $RuBP$.
$R -$ Photorespiration starts with the oxygenation of $RuBP$.

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$A -$ Productivity of $C_3$ plants is higher than $C_4$ plants.$R -$ Photorespiration occurs in $C_3$ plants.