Chapter 21 Solutions

EBK BROCK BIOLOGY OF MICROORGANISMS

Ch. 21.1 - How is new organic matter made in nature?Ch. 21.1 - In what ways are oxygenic photosynthesis and...Ch. 21.1 - What is a methane hydrate?Ch. 21.1 - The oxygen and carbon cycles are interconnected...Ch. 21.2 - Why does Syntrophomonas need a partner organism in...Ch. 21.2 - Prob. 2MQ Ch. 21.2 - What is the final product of acetogenesis?Ch. 21.2 - Prob. 1CR Ch. 21.3 - What is nitrogen fixation and why is it important...Ch. 21.3 - Prob. 2MQ

Ch. 21.3 - How does the compound nitrapyrin benefit both...Ch. 21.3 - The principal form of nitrogen on Earth is N2,...Ch. 21.4 - Is H2S a substrate or a product of the...Ch. 21.4 - Prob. 2MQ Ch. 21.4 - Prob. 3MQ Ch. 21.4 - Bacteria play major roles in both the oxidative...Ch. 21.5 - In what oxidation state is Fe in Fe(OH)3? In FeS?...Ch. 21.5 - Prob. 2MQ Ch. 21.5 - Why is excreted organic matter important to many...Ch. 21.5 - Prob. 1CR Ch. 21.6 - How does the formation of CaCO3 skeletons by...Ch. 21.6 - Prob. 2MQ Ch. 21.6 - Prob. 1CR Ch. 21.7 - What forms of mercury are most toxic to organisms?Ch. 21.7 - Prob. 2MQ Ch. 21.7 - Prob. 3MQ Ch. 21.7 - Prob. 1CR Ch. 21.8 - What is the greenhouse effect and what causes it?Ch. 21.8 - What is the fate of most nitrogen used in...Ch. 21.8 - Why are the OMZs expanding and what are the likely...Ch. 21.8 - Prob. 1CR Ch. 21 - Compare and contrast the carbon, sulfur, and...Ch. 21 - 14C-labeled cellulose is added to a vial...Ch. 21 - Prob. 3AQ

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Chapter 21 Solutions