Photoautotrophs use a. light as an energy source and CO2 as a carbon source. b. light as an energy source and methane as a carbon source. c. N2 as an energy source and CO2 as a carbon source. d. CO2 as both an energy source and a carbon source.
Ch. 27 - Bacteria and Archaea
Chapter 27, Problem 4
Which of the following involves metabolic cooperation among prokaryotic cells? a. binary fission b. endospore formation c. biofilms d. photoautotrophy
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Metabolic Cooperation
Metabolic cooperation refers to the interaction between cells that allows them to share resources and metabolic processes. In prokaryotic communities, such cooperation can enhance survival and efficiency, as cells can perform specialized functions and exchange metabolites, leading to a more robust ecosystem.
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Biofilms
Biofilms are structured communities of microorganisms that adhere to surfaces and are embedded in a self-produced extracellular matrix. In biofilms, prokaryotic cells exhibit metabolic cooperation, allowing them to share nutrients and protect each other from environmental stresses, which enhances their survival and functionality.
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Prokaryotic Cells
Prokaryotic cells are unicellular organisms that lack a nucleus and membrane-bound organelles. They include bacteria and archaea, which can form complex communities and engage in various metabolic processes, including cooperation through mechanisms like biofilm formation, which is crucial for their adaptation and survival in diverse environments.
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Related Practice
Textbook Question
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Textbook Question
Which of the following statements is true?
(A)Archaea and bacteria have identical membrane lipids.
(B)The cell walls of archaea lack peptidoglycan.
(C)Prokaryotes have low levels of genetic diversity.
(D)No archaea are capable of using CO2 to oxidize H2, releasing methane.
2247
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Textbook Question
Which of the following statements is true?
a. Archaea and bacteria have identical membrane lipids.
b. The cell walls of archaea lack peptidoglycan.
c. Prokaryotes have low levels of genetic diversity.
d. No archaea are capable of using CO2 to oxidize H2, releasing methane.
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Textbook Question
Which of the following describes a bacterium that lives in the human intestine and causes disease?
(A)commensalist
(B)decomposer
(C)gut mutualist
(D)symbiotic pathogen
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Textbook Question
Which of the following describes a bacterium that lives in the human intestine and causes disease?
a. commensalist
b. decomposer
c. gut mutualist
d. symbiotic pathogen
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Textbook Question
Plantlike photosynthesis that releases O2 occurs in a. cyanobacteria. b. archaea. c. gram-positive bacteria. d. chemoautotrophic bacteria.
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