Biology: Science for Life with Physiology (5th Edition)
5th Edition
ISBN: 9780321922212
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Chapter 4, Problem 1CTS
Summary Introduction
To describe:
The production of energy by the bacteria on early earth in absence of oxygen.
Introduction:
The oxygen is an element, which is found abundantly on earth. The oxygen is very important for supporting the life on earth. It is the main component, which is used in the process of
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Using the analogy of a one-hour countdown timer, when did prokaryotes originate? When did the colonization of land occur?
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Explain how are Cyanobacteria related in changing the early earth’s environment which later suitable for the development of other organisms.
Why were cyanobacteria so important in the evolution of life on Earth and why are microorganisms important to humans?
Chapter 4 Solutions
Biology: Science for Life with Physiology (5th Edition)
Ch. 4 - Define the term metabolism.Ch. 4 - What is meant by the term induced fit?Ch. 4 - What are the reactants and products of cellular...Ch. 4 - Which of the following is a false statement...Ch. 4 - Enzymes speed up chemical reactions by...Ch. 4 - Prob. 6LTBCh. 4 - Prob. 7LTBCh. 4 - The electron transport chain ___________. is...Ch. 4 - Most of the energy in an ATP molecule is released...Ch. 4 - Anaerobic respiration ___________. generates...
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- Explain why Cyanobacteria is considered the first photosynthetic organisms in the earth’s revolution?arrow_forwardWhy were cyanobacteria so important in the evolution of life onEarth?arrow_forwardDirect evidence of life on early Earth comes from fossils of microorganisms that lived 3.5 billion years ago. But how did the first living cells appear?arrow_forward
- How did the first fermenting autotrophs appear? What about the first aerobic organisms?arrow_forwardWhy did the discovery of archaea generate interest in searching for cells on other planets?arrow_forwardMitochondria and chloroplasts contain some DNA, which more closely resembles prokaryotic DNA than (eukaryotic) nuclear DNA. Use this information to suggest how eukaryotes may have originated.arrow_forward
- What types of organisms can produce their own food required to survive? A. Organisms that can do cellular respiration B. Organisms that have free-floating DNA C. Organisms that can do photosynthesis D. Organisms with a special enzymearrow_forwardWhich of the following extremophiles is the best model for the earliest organisms on Earth? A. a prokaryote found near hydrothermal vents B. an archaean capable of surviving in the polar ice caps C. an anaerobic archaean species D. a bacterium that thrives in a highly acidic environmentarrow_forwardHere is the question: What was the likely source of the raw material incorporated into the first life forms? I believe it is carbon, but I don't know why it is carbon. What I mean is, why is carbon considered the thing that makes something alive? Why are eukaryotes and prokaryotes simply considered alive just because they have carbon. Would that mean that carbon is alive because carbon has carbon? I would appreciate an anwser because I'm really trying to understand everything I run across. I love educating myself and I'm on a quest for knowledge. Thanks guys!arrow_forward
- Choose one prokaryote (bacteria or archaea) AND one protest. You can choose a species or more general taxonomic group of interest. Then address the following questions for each. 1. What does the organism look like? Describe or include an image. 2. How does it obtain energy? 3. How does it reproduce? 4. What are its close relatives in the tree of life? 5. Why is it important from a human perspective?arrow_forwardHow did the appearance of Cyanobacteria change the atmosphere of the ancient earth ?arrow_forward7. Which of the following statements about early life on earth is incorrect? A) Earth was anoxic B) Carbon was obtained from CO2 C) Energy was obtained from glucose D) D) Cells were likely chemolitbotrophicarrow_forward
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