Question 1

Once rhizobia enter into the plant cell and differentiate they will not proliferate again.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is NOT a feature of a primary endosymbiont?

Accepted Answer

A)  They all have reduced genomes. 
B)  They are found in specialized cells called bacteriocytes. 
C)  They provide the host with nutrients. 
D)  They are passed on maternally. 
E)  They are required for survival or fertility. 
A)  They all have reduced genomes. 
B)  They are found in specialized cells called bacteriocytes. 
C)  They provide the host with nutrients. 
D)  They are passed on maternally. 
E)  They are required for survival or fertility.

Question 3

Which of these is TRUE of a lichen?

Accepted Answer

A)  It is classified as a plant. 
B)  It is comprised of a fungus and usually an green alga. 
C)  It is comprised of a fungus and an archaeal symbiont. 
D)  It is a type of slime mold. 
E)  It is comprised of a protozoan and anarchaeal symbiont. 
A)  It is classified as a plant. 
B)  It is comprised of a fungus and usually an green alga. 
C)  It is comprised of a fungus and an archaeal symbiont. 
D)  It is a type of slime mold. 
E)  It is comprised of a protozoan and anarchaeal symbiont.

Question 4

The vagina of women of child-bearing age has an acidic pH.This is due to the colonization by which organisms?

Accepted Answer

A)  staphylococci 
B)  lactobacilli 
C)  Candida sp 
D)  Bacteroides sp 
E)  micrococci 
A)  staphylococci 
B)  lactobacilli 
C)  Candida sp 
D)  Bacteroides sp 
E)  micrococci

Question 5

In order to make sufficient ATP for symbiotic nitrogen fixation,the plant supplies the symbionts with ____________ for energy production.

Accepted Answer

A)  NADH 
B)  glucose 
C)  C3 acids 
D)  fatty acids 
E)  C4-dicarboxylic acids 
A)  NADH 
B)  glucose 
C)  C3 acids 
D)  fatty acids 
E)  C4-dicarboxylic acids

Question 6

Describe the characteristics of a primary endosymbiont.

Accepted Answer

Primary endosymbionts are typically bact

Question 7

The bacterial genus ___________ is a secondary symbiont and is capable of changing the female to male ratio of an insect to primarily female.

Accepted Answer

A)  Rickettsia 
B)  Wolbachia 
C)  Pseudomonas 
D)  Culex 
E)  Bordetella 
A)  Rickettsia 
B)  Wolbachia 
C)  Pseudomonas 
D)  Culex 
E)  Bordetella

Question 8

Describe the process of rhizobial recognition of its host legume for the initiation of nodule formation.

Accepted Answer

The process of rhizobial recognition of

Question 9

Which of these contains zooxanthellae as photosynthetic symbionts?

Accepted Answer

A)  shipworms 
B)  termites 
C)  lichens 
D)  coral 
E)  tubeworms 
A)  shipworms 
B)  termites 
C)  lichens 
D)  coral 
E)  tubeworms

Question 10

Some herbivorous cecal fermenters obtain additional nutrients from their food sources by this method.

Accepted Answer

A)  Regurgitating their food and chewing it again. 
B)  Retaining it in their large intestine for long periods of time. 
C)  Eating their feces. 
D)  Selectively eating certain plants. 
E)  Moving the cecal-digested food back to the small intestine for absorption. 
A)  Regurgitating their food and chewing it again. 
B)  Retaining it in their large intestine for long periods of time. 
C)  Eating their feces. 
D)  Selectively eating certain plants. 
E)  Moving the cecal-digested food back to the small intestine for absorption.

Once rhizobia enter into the plant cell and differentiate they will not proliferate again.

Which of the following is NOT a feature of a primary endosymbiont?

Which of these is TRUE of a lichen?

The vagina of women of child-bearing age has an acidic pH.This is due to the colonization by which organisms?

In order to make sufficient ATP for symbiotic nitrogen fixation,the plant supplies the symbionts with ____________ for energy production.

Describe the characteristics of a primary endosymbiont.

The bacterial genus ___________ is a secondary symbiont and is capable of changing the female to male ratio of an insect to primarily female.

Describe the process of rhizobial recognition of its host legume for the initiation of nodule formation.

Which of these contains zooxanthellae as photosynthetic symbionts?

Some herbivorous cecal fermenters obtain additional nutrients from their food sources by this method.

The Microbial World

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

DNA Replication and Gene Expression

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Metabolism

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Introduction to Infectious Diseases

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Survival in the Host

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters

Exam 17: Microbial Symbionts

Once rhizobia enter into the plant cell and differentiate they will not proliferate again.

Which of the following is NOT a feature of a primary endosymbiont?

Which of these is TRUE of a lichen?

The vagina of women of child-bearing age has an acidic pH.This is due to the colonization by which organisms?

In order to make sufficient ATP for symbiotic nitrogen fixation,the plant supplies the symbionts with ____________ for energy production.

Describe the characteristics of a primary endosymbiont.

The bacterial genus ___________ is a secondary symbiont and is capable of changing the female to male ratio of an insect to primarily female.

Describe the process of rhizobial recognition of its host legume for the initiation of nodule formation.

Which of these contains zooxanthellae as photosynthetic symbionts?

Some herbivorous cecal fermenters obtain additional nutrients from their food sources by this method.

The Microbial World

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

DNA Replication and Gene Expression

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Metabolism

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Introduction to Infectious Diseases

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Survival in the Host

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters