Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin may have been a late evolutionary invention and that anaerobic respiration with S 0 as electron acceptor might have been an early evolutionary invention. Figure 17.1 Schematic representation of the phylogeny of the major taxonomic orders within the domain Archaea. Each of the five archaeal phyla and their major orders are indicated in a different color.

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Answer 1

Textbook Question

Chapter 17, Problem 1AQ

Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin may have been a late evolutionary invention and that anaerobic respiration with S⁰ as electron acceptor might have been an early evolutionary invention.

Chapter 17, Problem 1AQ, Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin

Figure 17.1 Schematic representation of the phylogeny of the major taxonomic orders within the domain Archaea. Each of the five archaeal phyla and their major orders are indicated in a different color.

Expert Solution & Answer

Summary Introduction

The term phylogeny is defined as the history of evolution or descent of pattern of a group of organisms from their ancestors. A branching diagram known as cladogram or a phylogenetic tree conceptually represents the phylogeny. The branch that deals with systematics inferring phylogeny are known as phylogenetic systematics or cladistics. The primary goal of phylogenetic systematics is to pattern the descent of a group of organisms. The phylogenetic systematics have the main goal to determine the life history of descent. The phylogenetic systematics are represented as branching pattern and can be determined through the analysis of characters of living or fossil organisms according to phylogenetic principles and methodology.

Explanation of Solution

In the figure, Archaea shows extensive phenotypic diversity. Archaea mainly constitutes of chemoorganotrophic or chemolithotrophic organisms. With respect to evolutionary aspect, Archaea is divided into two main phyla: Crenarchaeota and Euryarchaeota. Crenarchaeota includes mainly hyperthermophiles. Euryarchaeota is physiologically diverse group and many of the organisms are found in extreme environmental conditions. Methanogens and extremely halophilic organisms are included in this phylum. This phylum also includes hyperthermophiles. In Eurychaeota phylum it is observed that Halobacterium which consists bacteriorhodopsin appears very late on the phylogenetic tree justifying late invention of bacteriorhodopsin. Bacteriorhodopsin helps in ATP production in Halobacterium salinarum.

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Answer 2

Textbook Question

Chapter 17, Problem 1AQ

Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin may have been a late evolutionary invention and that anaerobic respiration with S⁰ as electron acceptor might have been an early evolutionary invention.

Chapter 17, Problem 1AQ, Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin

Figure 17.1 Schematic representation of the phylogeny of the major taxonomic orders within the domain Archaea. Each of the five archaeal phyla and their major orders are indicated in a different color.

Expert Solution & Answer

Summary Introduction

The term phylogeny is defined as the history of evolution or descent of pattern of a group of organisms from their ancestors. A branching diagram known as cladogram or a phylogenetic tree conceptually represents the phylogeny. The branch that deals with systematics inferring phylogeny are known as phylogenetic systematics or cladistics. The primary goal of phylogenetic systematics is to pattern the descent of a group of organisms. The phylogenetic systematics have the main goal to determine the life history of descent. The phylogenetic systematics are represented as branching pattern and can be determined through the analysis of characters of living or fossil organisms according to phylogenetic principles and methodology.

Explanation of Solution

In the figure, Archaea shows extensive phenotypic diversity. Archaea mainly constitutes of chemoorganotrophic or chemolithotrophic organisms. With respect to evolutionary aspect, Archaea is divided into two main phyla: Crenarchaeota and Euryarchaeota. Crenarchaeota includes mainly hyperthermophiles. Euryarchaeota is physiologically diverse group and many of the organisms are found in extreme environmental conditions. Methanogens and extremely halophilic organisms are included in this phylum. This phylum also includes hyperthermophiles. In Eurychaeota phylum it is observed that Halobacterium which consists bacteriorhodopsin appears very late on the phylogenetic tree justifying late invention of bacteriorhodopsin. Bacteriorhodopsin helps in ATP production in Halobacterium salinarum.

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Answer 3

Textbook Question

Chapter 17, Problem 1AQ

Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin may have been a late evolutionary invention and that anaerobic respiration with S⁰ as electron acceptor might have been an early evolutionary invention.

Chapter 17, Problem 1AQ, Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin

Figure 17.1 Schematic representation of the phylogeny of the major taxonomic orders within the domain Archaea. Each of the five archaeal phyla and their major orders are indicated in a different color.

Expert Solution & Answer

Summary Introduction

The term phylogeny is defined as the history of evolution or descent of pattern of a group of organisms from their ancestors. A branching diagram known as cladogram or a phylogenetic tree conceptually represents the phylogeny. The branch that deals with systematics inferring phylogeny are known as phylogenetic systematics or cladistics. The primary goal of phylogenetic systematics is to pattern the descent of a group of organisms. The phylogenetic systematics have the main goal to determine the life history of descent. The phylogenetic systematics are represented as branching pattern and can be determined through the analysis of characters of living or fossil organisms according to phylogenetic principles and methodology.

Explanation of Solution

In the figure, Archaea shows extensive phenotypic diversity. Archaea mainly constitutes of chemoorganotrophic or chemolithotrophic organisms. With respect to evolutionary aspect, Archaea is divided into two main phyla: Crenarchaeota and Euryarchaeota. Crenarchaeota includes mainly hyperthermophiles. Euryarchaeota is physiologically diverse group and many of the organisms are found in extreme environmental conditions. Methanogens and extremely halophilic organisms are included in this phylum. This phylum also includes hyperthermophiles. In Eurychaeota phylum it is observed that Halobacterium which consists bacteriorhodopsin appears very late on the phylogenetic tree justifying late invention of bacteriorhodopsin. Bacteriorhodopsin helps in ATP production in Halobacterium salinarum.

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Answer 4

Textbook Question

Chapter 17, Problem 1AQ

Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin may have been a late evolutionary invention and that anaerobic respiration with S⁰ as electron acceptor might have been an early evolutionary invention.

Chapter 17, Problem 1AQ, Using the phylogenetic tree in Figure 17.1 as a guide, discuss what indicates that bacteriorhodopsin

Figure 17.1 Schematic representation of the phylogeny of the major taxonomic orders within the domain Archaea. Each of the five archaeal phyla and their major orders are indicated in a different color.

Expert Solution & Answer

Summary Introduction

The term phylogeny is defined as the history of evolution or descent of pattern of a group of organisms from their ancestors. A branching diagram known as cladogram or a phylogenetic tree conceptually represents the phylogeny. The branch that deals with systematics inferring phylogeny are known as phylogenetic systematics or cladistics. The primary goal of phylogenetic systematics is to pattern the descent of a group of organisms. The phylogenetic systematics have the main goal to determine the life history of descent. The phylogenetic systematics are represented as branching pattern and can be determined through the analysis of characters of living or fossil organisms according to phylogenetic principles and methodology.

Explanation of Solution

In the figure, Archaea shows extensive phenotypic diversity. Archaea mainly constitutes of chemoorganotrophic or chemolithotrophic organisms. With respect to evolutionary aspect, Archaea is divided into two main phyla: Crenarchaeota and Euryarchaeota. Crenarchaeota includes mainly hyperthermophiles. Euryarchaeota is physiologically diverse group and many of the organisms are found in extreme environmental conditions. Methanogens and extremely halophilic organisms are included in this phylum. This phylum also includes hyperthermophiles. In Eurychaeota phylum it is observed that Halobacterium which consists bacteriorhodopsin appears very late on the phylogenetic tree justifying late invention of bacteriorhodopsin. Bacteriorhodopsin helps in ATP production in Halobacterium salinarum.

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Answer 5

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Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

The term phylogeny is defined as the history of evolution or descent of pattern of a group of organisms from their ancestors. A branching diagram known as cladogram or a phylogenetic tree conceptually represents the phylogeny. The branch that deals with systematics inferring phylogeny are known as phylogenetic systematics or cladistics. The primary goal of phylogenetic systematics is to pattern the descent of a group of organisms. The phylogenetic systematics have the main goal to determine the life history of descent. The phylogenetic systematics are represented as branching pattern and can be determined through the analysis of characters of living or fossil organisms according to phylogenetic principles and methodology.

Explanation of Solution

In the figure, Archaea shows extensive phenotypic diversity. Archaea mainly constitutes of chemoorganotrophic or chemolithotrophic organisms. With respect to evolutionary aspect, Archaea is divided into two main phyla: Crenarchaeota and Euryarchaeota. Crenarchaeota includes mainly hyperthermophiles. Euryarchaeota is physiologically diverse group and many of the organisms are found in extreme environmental conditions. Methanogens and extremely halophilic organisms are included in this phylum. This phylum also includes hyperthermophiles. In Eurychaeota phylum it is observed that Halobacterium which consists bacteriorhodopsin appears very late on the phylogenetic tree justifying late invention of bacteriorhodopsin. Bacteriorhodopsin helps in ATP production in Halobacterium salinarum.

Answer 8

Expert Solution & Answer

Summary Introduction

The term phylogeny is defined as the history of evolution or descent of pattern of a group of organisms from their ancestors. A branching diagram known as cladogram or a phylogenetic tree conceptually represents the phylogeny. The branch that deals with systematics inferring phylogeny are known as phylogenetic systematics or cladistics. The primary goal of phylogenetic systematics is to pattern the descent of a group of organisms. The phylogenetic systematics have the main goal to determine the life history of descent. The phylogenetic systematics are represented as branching pattern and can be determined through the analysis of characters of living or fossil organisms according to phylogenetic principles and methodology.

Explanation of Solution

In the figure, Archaea shows extensive phenotypic diversity. Archaea mainly constitutes of chemoorganotrophic or chemolithotrophic organisms. With respect to evolutionary aspect, Archaea is divided into two main phyla: Crenarchaeota and Euryarchaeota. Crenarchaeota includes mainly hyperthermophiles. Euryarchaeota is physiologically diverse group and many of the organisms are found in extreme environmental conditions. Methanogens and extremely halophilic organisms are included in this phylum. This phylum also includes hyperthermophiles. In Eurychaeota phylum it is observed that Halobacterium which consists bacteriorhodopsin appears very late on the phylogenetic tree justifying late invention of bacteriorhodopsin. Bacteriorhodopsin helps in ATP production in Halobacterium salinarum.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

The term phylogeny is defined as the history of evolution or descent of pattern of a group of organisms from their ancestors. A branching diagram known as cladogram or a phylogenetic tree conceptually represents the phylogeny. The branch that deals with systematics inferring phylogeny are known as phylogenetic systematics or cladistics. The primary goal of phylogenetic systematics is to pattern the descent of a group of organisms. The phylogenetic systematics have the main goal to determine the life history of descent. The phylogenetic systematics are represented as branching pattern and can be determined through the analysis of characters of living or fossil organisms according to phylogenetic principles and methodology.

Answer 12

Explanation of Solution

In the figure, Archaea shows extensive phenotypic diversity. Archaea mainly constitutes of chemoorganotrophic or chemolithotrophic organisms. With respect to evolutionary aspect, Archaea is divided into two main phyla: Crenarchaeota and Euryarchaeota. Crenarchaeota includes mainly hyperthermophiles. Euryarchaeota is physiologically diverse group and many of the organisms are found in extreme environmental conditions. Methanogens and extremely halophilic organisms are included in this phylum. This phylum also includes hyperthermophiles. In Eurychaeota phylum it is observed that Halobacterium which consists bacteriorhodopsin appears very late on the phylogenetic tree justifying late invention of bacteriorhodopsin. Bacteriorhodopsin helps in ATP production in Halobacterium salinarum.

Answer 13

Ch. 17.1 - Since cells of Halobacterium require high levels...Ch. 17.1 - What benefit does bacteriorhodopsin confer on...Ch. 17.1 - Contrast the roles of bacteriorhodopsin,...Ch. 17.2 - Prob. 1MQ Ch. 17.2 - Prob. 2MQ Ch. 17.2 - Prob. 1CR Ch. 17.3 - Prob. 1MQ Ch. 17.3 - Prob. 2MQ Ch. 17.3 - What two major physiological features unify...Ch. 17.4 - Prob. 1MQ

Solution Summary: The author explains that phylogeny is defined as the history of evolution or descent of a group of organisms from their ancestors.

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