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Figure shows the effect of light on the ...

Figure shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions.
a. At which points (A, B or C) in the curve is light a limiting factor ?
b. What could be the limiting factor/s in region A ?
c. What do C and D represent on the curve ?

Text Solution

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a. In Region .A. Light is limiting factor where photosynthesis is minimum.
b. Light is the limiting factor in region A.
c. .D. shows the optimum point and gives the light intensity at which maximum photosynthesis is recorded. .C. shows the rate of photosynthesis remains constant after this point eveb though the density of light changes.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-PHOTOSYNTHESIS IN HIGHER PLANTS -EXERCISES
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  2. By looking at a plant externally can you tell whether a plant is C(3) ...

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  3. Even though a very few cells in a C(4) plant carry out the biosynthet...

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  4. RUB is CO is an enzyme that acts as both as a carboxylase and oxygenas...

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  5. Suppose there were plants that had a high concentration of chlorophyll...

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  6. Why is the colour of a leaf kept in the dark frequently yellow or pale...

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  7. Why was the plant kept in dark and then in sunlight ?

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  8. Figure shows the effect of light on the rate of photosynthesis. Based ...

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  9. Give comparison between the following : a. C(3) and C(4) pathways ...

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  10. Cyanobacteria and some other photosynthetic bacteria do not have chlor...

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  11. Why photorespiration does not occur in C(4) plants ?

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  12. The orange colour of carrot root is due to the presence of

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  13. What is the reason to keep a plant in dark for 48 hours to conduct exp...

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  14. Photosynthetic organisms occur at different depths in oceam. Do they r...

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  15. Look at the acivities listed below. Reason out whether or not, work is...

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  16. The matrix of both chloroplast and mitochondria are similar in having

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  17. Write some of the events that occur in the chloroplasts during photosy...

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  18. Which of the following statements about absorption spectrum is correct...

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