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Chapter 19: Q11CP (page 651)

What chloroplast protein is the functional counterpart of mitochondrial cytochrome c?

Short Answer

Expert verified

Cytochrome b6fof chloroplast is the functional counterpart of mitochondrial cytochrome c.

Step by step solution

01

Introduction to cytochrome  c

Cytochromecis a hem protein that transmits electrons between complex III and complex IV of the respiratory chain. It is found in the compartment between the inner and outer mitochondrial membranes.

02

The functional counterpart of mitochondrial cytochrome c

Mitochondrial proteins are important in mitochondrial function, including electron transport chain reactions.

The cytochrome cpresent in the mitochondrial membrane and cytochromecomplex present in the thylakoid membrane (chloroplast) have sequence homology and structural similarities.

In the photosynthesis process, the cytochrome b6f complex is involved in electron transport via the membranes of the thylakoids.

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Most popular questions from this chapter

One aspect of climate change is that average night-time temperatures have increased more than average daytime temperatures have increased. Since the rates of metabolic processes, including photosynthesis and cellular respiration, depend on temperature, how might climate change affect plant growth?

The leaves of some species of desert plants taste sour in the early morning, but, as the day wears on, they become tasteless and then bitter. Explain.

The net equation for oxidative phosphorylation can be written as

2NADH + 2H+ + O2 → 2H2O + 2NAD+

Write an analogous equation for the light reactions of photosynthesis.

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Compare and contrast photophosphorylation and oxidative phosphorylation.
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