Microbiology: An Introduction (13th Edition)
Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Chapter 27, Problem 3R

In the sulfur cycle, microbes degrade organic sulfur compounds, such as (a) __,  to release H2S, which can be oxidized by Thiobacillus to (b) __. This ion can be assimilated into amino acids by (c) __ or reduced by Desulfovibrio to (d) __. H2S is used by photoautotrophic bacteria as an electron donor to synthesize (e) __. The sulfur-containing by-product of this metabolism is (f) __.

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