The nutritional strategies of prokaryotes were classified based on carbon, electron, and energy sources. Carbon sources include atmospheric carbon dioxide or reduced carbon from the environment. The energy sources include light and reduced organic or inorganic compounds. The electron sources include reducing organic or inorganic compounds.

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 27, Problem 7U

Summary Introduction

Introduction: The nutritional strategies of prokaryotes were classified based on carbon, electron, and energy sources. Carbon sources include atmospheric carbon dioxide or reduced carbon from the environment. The energy sources include light and reduced organic or inorganic compounds. The electron sources include reducing organic or inorganic compounds.

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Which of the following statements is a correct distinction between autotrophs and heterotrophs? a. Only heterotrophs require chemical compounds from the environment. b. Cellular respiration is unique to heterotrophs. c. Only heterotrophs have mitochondria. d. Only autotrophs can live on nutrients that are entirely inorganic

Which of the following statements is false? A. Sulfur-oxidizing bacteria may form hydrogen sulfide (H2S) as a product of the oxidation. B. Dissimilatory reduction of metals such as Fe3+ to Fe2+ represents anaerobic respiration. C. The nitrification reactions carried out by certain bacteria would be considered lithotrophy. D. Denitrification reactions would be considered anaerobic respiration.

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 27, Problem 7U

Summary Introduction

Introduction: The nutritional strategies of prokaryotes were classified based on carbon, electron, and energy sources. Carbon sources include atmospheric carbon dioxide or reduced carbon from the environment. The energy sources include light and reduced organic or inorganic compounds. The electron sources include reducing organic or inorganic compounds.

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Answer 3

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 27, Problem 7U

Summary Introduction

Introduction: The nutritional strategies of prokaryotes were classified based on carbon, electron, and energy sources. Carbon sources include atmospheric carbon dioxide or reduced carbon from the environment. The energy sources include light and reduced organic or inorganic compounds. The electron sources include reducing organic or inorganic compounds.

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Answer 4

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 27, Problem 7U

Summary Introduction