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Chapter 19: Q19_2P (page 662)

Green sulfur bacteria use H2S as an electron donor for photosynthesis. Write an equation that describes photosynthesis in these organisms

Short Answer

Expert verified

The equation for photosynthesis in green sulfur bacteria is:

CO2+2H2S+lightenergy→CH2O+2S+H2O.

Step by step solution

01

Definition of photosynthesis

Photosynthesis is a process in which light energy is converted into chemical energy to synthesize food material in plants. During photosynthesis, green sulfur bacteria employ H2S instead of water as an electron donor.

02

An equation for photosynthesis in green sulfur bacteria

CO2+2H2S+lightenergy→CH2O+2S+H2O

The green sulfur bacteria utilize the light energy and (electron donor) to fix the carbon dioxide gas. The resulting products include ethanol, water, and sulfur.

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Most popular questions from this chapter

Chloroplasts are illuminated until the levels of the Calvin cycle intermediates reach a steady state. The light is then turned off. How does the level of RuBP vary after this point?

Why do photosynthetic organisms contain several types of pigment molecules?

Calculate Δε0'and ΔG0'for the light reactions in plants, that is, the four-electron oxidation of H2O by NADP+.

Arabidopsis thalianachloroplasts contain a K+channel in the thylakoid stromal lamellae. Propose a function for this channel.

Describe the chemistry of the RuBP carboxylase reaction.
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