With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ?

Question

With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ? (A) Increasing atmospheric CO2 concentration up to 0.05 % can enhance CO2 fixation rate (B) C3 plants respond to higher temperatures with enhanced photosynthesis while C4 plants have much lower temperature optimum (C) Tomato is a greenhouse crop which can be grown in CO2 - enriched atmosphere for higher yield (D) Light saturation for CO2fixation occurs at 10 % of full sunlight

Tardigrade Admin · Accepted Answer

In C 3 plants photosynthesis is decreased at higher temperature due to increased photorespiration. C 4 plants have higher temperature optimum because of the presence of pyruvate phosphate dikinase enzyme, which is sensitive to low temperature.

Q. With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ?

Increasing atmospheric $C O_{2}$ concentration up to $0.05%$ can enhance $C O_{2}$ fixation rate

$C_{3}$ plants respond to higher temperatures with enhanced photosynthesis while $C_{4}$ plants have much lower temperature optimum

Tomato is a greenhouse crop which can be grown in $C O_{2} -$ enriched atmosphere for higher yield

Light saturation for $C O_{2}$ fixation occurs at $10%$ of full sunlight

In $C_{3}$ plants photosynthesis is decreased at higher temperature due to increased photorespiration.
$C_{4}$ plants have higher temperature optimum because of the presence of pyruvate phosphate dikinase enzyme, which is sensitive to low temperature.

Q. With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ?

Increasing atmospheric CO2​ concentration up to 0.05% can enhance CO2​ fixation rate

C3​ plants respond to higher temperatures with enhanced photosynthesis while C4​ plants have much lower temperature optimum

Tomato is a greenhouse crop which can be grown in CO2​− enriched atmosphere for higher yield

Light saturation for CO2​fixation occurs at 10% of full sunlight

In C3​ plants photosynthesis is decreased at higher temperature due to increased photorespiration. C4​ plants have higher temperature optimum because of the presence of pyruvate phosphate dikinase enzyme, which is sensitive to low temperature.

Increasing atmospheric $C O_{2}$ concentration up to $0.05%$ can enhance $C O_{2}$ fixation rate

$C_{3}$ plants respond to higher temperatures with enhanced photosynthesis while $C_{4}$ plants have much lower temperature optimum

Tomato is a greenhouse crop which can be grown in $C O_{2} -$ enriched atmosphere for higher yield

Light saturation for $C O_{2}$ fixation occurs at $10%$ of full sunlight

In $C_{3}$ plants photosynthesis is decreased at higher temperature due to increased photorespiration.
$C_{4}$ plants have higher temperature optimum because of the presence of pyruvate phosphate dikinase enzyme, which is sensitive to low temperature.