Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 21.2, Problem 1CR
Summary Introduction
Syntrophic bacteria comprise an important group of organisms which play an important role in the conversion of organic compounds to methane. Syntrophomonas and Syntrophobacter are important and common examples of syntrophic bacteria which belong to Syntrophs. Species of Syntrophomonas can use fatty acids up to the length of C18 and can also use few types of unsaturated fatty acids. Syntrophomonas wolfei is a species which can oxidize fatty acids up to the length of C4 to C8.
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After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.)
After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.)
Data Table 1Stage Totals PercentInterphase Mitosis: Prophase Metaphase Anaphase Telophase Cytokinesis Totals 100 100%
To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…
Chapter 21 Solutions
Brock Biology of Microorganisms (15th Edition)
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. 2MQCh. 21.2 - What is the final product of acetogenesis?Ch. 21.2 - Prob. 1CRCh. 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. 2MQCh. 21.4 - Prob. 3MQCh. 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. 2MQCh. 21.5 - Why is excreted organic matter important to many...Ch. 21.5 - Prob. 1CRCh. 21.6 - How does the formation of CaCO3 skeletons by...Ch. 21.6 - Prob. 2MQCh. 21.6 - Prob. 1CRCh. 21.7 - What forms of mercury are most toxic to organisms?Ch. 21.7 - Prob. 2MQCh. 21.7 - Prob. 3MQCh. 21.7 - Prob. 1CRCh. 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. 1CRCh. 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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