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In C3 -plants the first stable compound ...

In `C_3` -plants the first stable compound formed after `CO_2` fixation is

A

oxaloacetic acid

B

malic acid

C

phosphoglyceraldehyde

D

3- phosphoglycerate

Text Solution

Verified by Experts

The correct Answer is:
D
The plants fix atomsphere `CO_2` by a biosynthetic pathway called `C_3` cycle. In this , `CO_2` combines with RuBP (5C) to form 2 molecules of 3 carbon compound 3 phosphoglyceric acid (3PGA) or 3 phosphoglyceric . This reaction is catalysed by RUBP carboxylase enzyme.
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ARIHANT NEET-PHOTOSYNTHESIS IN HIGHERF PLANTS -Chapter Exercies (C Medical entrances Gallery ) (Collection of questions asked in NEET & Various Medical Entrance Exams )
  1. Choose the correct statement.

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  2. The enzyme responsible for primary carboxylaylation in C3 - plants is

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  3. In C3 -plants the first stable compound formed after CO2 fixation is

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  4. Which of the elements is found in chlorophyll ?

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  5. What is the quantum yield of photosynthesis

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  6. The structures that are formed by stacking of organized flattered memb...

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  7. The oxygen evolved during photosynthesis comes from water molecules . ...

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  8. In photosynthesis, light independent reactions take place at

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  9. ATP synthesis in cell requires

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  10. C(4) pathway is advantageous over C(3) pathway in plants as it

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  11. In this process which of the following play important role ?

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  12. During photorespiration, which compounds are formed having 2C and 3C ...

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  13. how many molecules of ATP and NADPH are require in formation of two mo...

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  14. An example of CAM plant is

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  15. Photorespiration requires this activity by an enzyme

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  16. This is not a C(3) plant

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  17. The visible prtion of light spectrum useful in photosynthesis is refer...

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  18. Cyclic photosphorylation results in the formation of

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  19. The strong inhibitor substance for PS II in photosynthesis is

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  20. How many molecules of ATP are required during the formation of one mol...

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