Brock Biology of Microorganisms (15th Edition)
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 17.13, Problem 1CR

Why might H2 metabolism have evolved as a mechanism for energy conservation in the earliest organisms on Earth?

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The animals body plans that emerged from the Cambrian Explosion were multi-cellular and significantly larger than animals that predated the Cambrian. This required the ability to use the process of aerobic respiration to more efficiently break down food molecules. What are two milestones that occurred in the Eon(s) that predated the Cambrian explosion that allowed for this more efficient form of energy production? (List both the milestone and the Eon in which it occurred)
Enzymes are proteins, and therefore are structurally linked to DNA sequences. How could natural selection alter the metabolism of an organism?
For questions 30 through 36, select the location where the following events occur. Answers may be used once, more than once, or not at all. Some questions may have one answer, some questions may have more than one answer. a) mitochondrial inner membrane b) mitochondrial intermembrane space c) mitochondrial matrix d) thylakoid membrane e) thylakoid space 30. electron chain components embedded here 31. H+ pumped into here 32. found in plants 33. found in animals 34. ADP+ Pi→ ATP occurs here 35. ATP synthase embedded here 36. Light-capturing pigments embedded here    asap please.
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