The graph given below shows the effect of pot | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The graph shows that at low light intensities,the rate of photosynthesis is the same for both untreated and treated $Chlorella$ samples,indicating

Vedclass · Accepted Answer

Potassium cyanide appears to have no inhibiting effect on photosynthesis at low light intensities

Vedclass · Answer

(D) The graph shows that at low light intensities,the rate of photosynthesis is the same for both untreated and treated $Chlorella$ samples,indicating that light is the limiting factor and potassium cyanide has no effect here.As light intensity increases,the rate of photosynthesis in the untreated sample continues to rise,whereas in the treated sample,it plateaus.Potassium cyanide is a known inhibitor of the dark reaction (Calvin cycle) by inhibiting enzymes like cytochrome oxidase. Since the dark reaction becomes the limiting factor at higher light intensities,the inhibition by potassium cyanide becomes apparent only at these higher intensities.Therefore,it can be deduced that potassium cyanide has no inhibiting effect on photosynthesis at low light intensities,where the light reaction is the limiting factor.

The graph given below shows the effect of potassium cyanide on the rate of photosynthesis of Chlorella at different light intensities. Which one of the following can be deduced from the graph?

Similar Questions

In which of the following plants would metabolism be hindered if the leaves are coated with wax on their upper surface?

Which of the following statements is incorrect?

Who proposed the Law of Limiting Factors?

If the temperature increases beyond $35^{\circ}C$,what will happen?

If the carbon dioxide content of the atmosphere is as high as $300 \, ppm$,what will be the effect on plants?

Vedclass Test Series

Exam Paper Generator

Online Exam Module