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Chapter 8: Q.8 (page 225)

Which part of the light-independent reactions would be affected if a cell could not produce the enzyme RuBisCO?

Short Answer

Expert verified

None of the cycle could take place, because RuBisCO its essential in fixing carbon dioxide.

Step by step solution

01

Step1. Introduction 

The light-independent reactions can proceed once products (NADPH and ATP) of the light-dependent reactions are present in the chloroplast.

RuBisCo is an enzyme that catalyzes the attachment of carbon molecule to ribulose phosphate (RuBp) forming the 6-carbon molecule that immediately splits into two 3-carbon molecules of 3-phosphoglycerate (3-PGA).

02

Step2. Explanation 

Specifically, RuBisCO catalyzes the reaction between carbon dioxide and RuBP at the start of the cycle.

If a cell could not produce the enzyme RuBisCO , none of the cycle could take place, because RuBisCO its essential in fixing carbon dioxide.

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Most popular questions from this chapter

How does the closing of the stomata limit photosynthesis?

Which complex is not involved in the establishment of conditions for ATP synthesis?

a. photosystem I

b. ATP synthase

c. photosystem II

d. cytochrome complex

Why are carnivores, such as lions, dependent on photosynthesis to survive?

In which compartment of the plant cell do the light independent reactions of photosynthesis take place?

a. thylakoid

b. stroma

c. outer membrane

d. mesophyll

How are the NADPH and G3P molecules made during photosynthesis similar?

a. They are both end products of photosynthesis.

b. They are both substrates for photosynthesis.

c. They are both produced from carbon dioxide.

d. They both store energy in chemical bonds.
See all solutions

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