When temperature is increased from minimum to optimum, rate of photosynthesis doubles for every rise in temperature.

Question

When temperature is increased from minimum to optimum, rate of photosynthesis doubles for every rise in temperature. (A) 1° C (B) 10° C (C) 20° C (D) 30° C

Tardigrade Admin · Accepted Answer

Rate of photosynthesis usually increases with an increase in temperature upto 40° C. Above this temperature, rate of photosynthesis starts decreasing due to inactivation of enzymes. The minimum temperature at which most plants start photosynthesis is 0° to 5 ° but it can be as low as -20° C for lichens and-35° C for some gymnosperms. The maximum temperature at which photosynthesis can occur is 55° Cin some desert plants and 75° C for hot spring algae. When temperature is increased from minimum to optimum, the rate of photosynthesis doubles for every 10° C rise in temperature.

Q. When temperature is increased from minimum to optimum, rate of photosynthesis doubles for every _____ rise in temperature.

$1^{\circ} C$

$1 0^{\circ} C$

$2 0^{\circ} C$

$3 0^{\circ} C$

Q. When temperature is increased from minimum to optimum, rate of photosynthesis doubles for every _____ rise in temperature.

1∘C

10∘C

20∘C

30∘C

$1^{\circ} C$

$1 0^{\circ} C$

$2 0^{\circ} C$

$3 0^{\circ} C$