Question 1

Answer the following questions using the five groups listed below:
-These produce CH4.

Accepted Answer

A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) proteobacteria 
E) Methanogens 
A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) proteobacteria 
E) Methanogens E

Question 2

Which of the following lack a nucleus and are structurally simple?

Accepted Answer

A)  Eukaryotes 
B)  Prokaryotes 
C)  Fungi 
D)  Algae 
E)  Protists 
A)  Eukaryotes 
B)  Prokaryotes 
C)  Fungi 
D)  Algae 
E)  Protists B

Question 3

This bacterium secretes an exotoxin that binds to nerve cells and causes muscle paralysis.

Accepted Answer

A)  Clostridium botulinum 
B)  Shigella 
C)  Escherichia coli 
D)  Cholera 
E)  Penicillium 
A)  Clostridium botulinum 
B)  Shigella 
C)  Escherichia coli 
D)  Cholera 
E)  Penicillium A

Question 4

Peptidoglycan is a compound in ____.

Accepted Answer

A)  bacterial flagella 
B)  bacterial cell walls 
C)  archaean cell walls 
D)  archaean flagella 
E)  eukaryote cell walls 
A)  bacterial flagella 
B)  bacterial cell walls 
C)  archaean cell walls 
D)  archaean flagella 
E)  eukaryote cell walls

Question 5

The following is an emerging viral disease:

Accepted Answer

A)  Herpes 
B)  Zika 
C)  Rubella 
D)  Mumps 
E)  Botulism 
A)  Herpes 
B)  Zika 
C)  Rubella 
D)  Mumps 
E)  Botulism

Question 6

Bacteriophages may reproduce using a(n)__________ pathway in which viral DNA becomes part of the host chromosome.

Accepted Answer

The answer of Bacteriophages may reproduce using a(n)__________ pathway in...

Question 7

Retroviruses are characterized by ____.

Accepted Answer

A)  RNA that is used as a template to produce DNA in a host cell 
B)  integrating RNA into the host's chromosome 
C)  the enzyme alkaline phosphatase 
D)  having one strain that causes H1N1 
E)  the lack of a protein coat 
A)  RNA that is used as a template to produce DNA in a host cell 
B)  integrating RNA into the host's chromosome 
C)  the enzyme alkaline phosphatase 
D)  having one strain that causes H1N1 
E)  the lack of a protein coat

Question 8

What feature is LEAST characteristic of a virus?

Accepted Answer

A)  Contains DNA or RNA genetic material 
B)  Contains cytoplasm and ribosomes 
C)  Has a protein coat 
D)  Can only replicate inside a living host cell 
E)  Is very small 
A)  Contains DNA or RNA genetic material 
B)  Contains cytoplasm and ribosomes 
C)  Has a protein coat 
D)  Can only replicate inside a living host cell 
E)  Is very small

Question 9

Answer the following questions using the five groups listed below:
-These bacteria can live in water of very high salt concentration.

Accepted Answer

A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) proteobacteria 
E) Methanogens 
A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) proteobacteria 
E) Methanogens

Question 10

The substance that is secreted by a bacterial pathogen is known as ___________.

Accepted Answer

A)  exotoxin 
B)  siderophores 
C)  endotoxin 
D)  chlamydia 
E)  Coxiella 
A)  exotoxin 
B)  siderophores 
C)  endotoxin 
D)  chlamydia 
E)  Coxiella

Question 11

Herpes and other enveloped viruses enter their host cells ____.

Accepted Answer

A)  through pores 
B)  by dissolving the host plasma membrane 
C)  by fusion of the viral membrane with the cell's plasma membrane 
D)  by activating transport proteins in the host cell's plasma membrane 
E)  by engulfing the host cell 
A)  through pores 
B)  by dissolving the host plasma membrane 
C)  by fusion of the viral membrane with the cell's plasma membrane 
D)  by activating transport proteins in the host cell's plasma membrane 
E)  by engulfing the host cell

Question 12

Answer the following questions using the five groups listed below:
-The only bacteria that uses the noncyclic photosynthetic pathway.

Accepted Answer

A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) proteobacteria 
E) Methanogens 
A) halophiles 
B) cyanobacteria 
C) thermophiles 
D) proteobacteria 
E) Methanogens

Question 13

Which prokaryotic nutritional group uses inorganic substances to produce energy and CO2 to build organic compounds?

Accepted Answer

A)  Photoautotrophs 
B)  Chemoautotrophs 
C)  Photoheterotrophs 
D)  Chemoheterotrophs 
E)  Methanoheterotrophs 
A)  Photoautotrophs 
B)  Chemoautotrophs 
C)  Photoheterotrophs 
D)  Chemoheterotrophs 
E)  Methanoheterotrophs

Question 14

Four of the following are characteristics of viruses.Which one is the exception?

Accepted Answer

A)  The outer coats of all viruses are alike. 
B)  The virus contains either DNA or RNA at its core, but not both. 
C)  Viruses infect organisms in all three domains of life. 
D)  Most viruses have a protein coat or covering. 
E)  Viral envelopes consist of host cell membrane. 
A)  The outer coats of all viruses are alike. 
B)  The virus contains either DNA or RNA at its core, but not both. 
C)  Viruses infect organisms in all three domains of life. 
D)  Most viruses have a protein coat or covering. 
E)  Viral envelopes consist of host cell membrane.

Question 15

In what way does prokaryotic fission resemble eukaryotic mitosis?

Accepted Answer

A)  Mechanism of chromosome movement 
B)  Production of genetically identical descendant cells 
C)  Chromosome attachment 
D)  Production of a cytoskeletal framework for separating chromosomes 
E)  Horizontal gene transfers 
A)  Mechanism of chromosome movement 
B)  Production of genetically identical descendant cells 
C)  Chromosome attachment 
D)  Production of a cytoskeletal framework for separating chromosomes 
E)  Horizontal gene transfers

Question 16

__________ or __________ extend from many prokaryotic cells and serve in attachment and motility.

Accepted Answer

Pili; flag

Question 17

The methanogenic archaeans are ____ that pull electrons from ____.

Accepted Answer

A)  chemoautotrophs; oxygen 
B)  chemoheterotrophs; carbon dioxide 
C)  chemoautotrophs; water 
D)  chemoheterotrophs; methane 
E)  chemoautotrophs; hydrogen gas 
A)  chemoautotrophs; oxygen 
B)  chemoheterotrophs; carbon dioxide 
C)  chemoautotrophs; water 
D)  chemoheterotrophs; methane 
E)  chemoautotrophs; hydrogen gas

Question 18

How do archaeans and bacteria differ?

Accepted Answer

A)  Size 
B)  Shape 
C)  Plasma membrane composition 
D)  Absence of a nucleus 
E)  Mode of cellular division 
A)  Size 
B)  Shape 
C)  Plasma membrane composition 
D)  Absence of a nucleus 
E)  Mode of cellular division

Question 19

A virus infects a host cell and takes over the host's mechanisms of replication and __________ synthesis.

Accepted Answer

The answer of A virus infects a host cell and...

Question 20

Which prokaryotic nutritional groups use CO2 and sunlight to produce energy?

Accepted Answer

A)  Photoautotrophs 
B)  Chemoautotrophs 
C)  Photoheterotrophs 
D)  Chemoheterotrophs 
E)  Methanoheterotrophs 
A)  Photoautotrophs 
B)  Chemoautotrophs 
C)  Photoheterotrophs 
D)  Chemoheterotrophs 
E)  Methanoheterotrophs

Exam 20: Viruses, Bacteria, and Archaea

Answer the following questions using the five groups listed below: -These produce CH4.

Which of the following lack a nucleus and are structurally simple?

This bacterium secretes an exotoxin that binds to nerve cells and causes muscle paralysis.

Peptidoglycan is a compound in ____.

The following is an emerging viral disease:

Bacteriophages may reproduce using a(n)__________ pathway in which viral DNA becomes part of the host chromosome.

Retroviruses are characterized by ____.

What feature is LEAST characteristic of a virus?

Answer the following questions using the five groups listed below: -These bacteria can live in water of very high salt concentration.

The substance that is secreted by a bacterial pathogen is known as ___________.

Herpes and other enveloped viruses enter their host cells ____.

Answer the following questions using the five groups listed below: -The only bacteria that uses the noncyclic photosynthetic pathway.

Which prokaryotic nutritional group uses inorganic substances to produce energy and CO2 to build organic compounds?

Four of the following are characteristics of viruses.Which one is the exception?

In what way does prokaryotic fission resemble eukaryotic mitosis?

__________ or __________ extend from many prokaryotic cells and serve in attachment and motility.

The methanogenic archaeans are ____ that pull electrons from ____.

How do archaeans and bacteria differ?

A virus infects a host cell and takes over the host's mechanisms of replication and __________ synthesis.

Which prokaryotic nutritional groups use CO2 and sunlight to produce energy?

Invitation to Biology

Life's Chemical Bases

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Where it Starts—Photosynthesis

How Cells Release Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information about Species

Life's Origin and Early Evolution

Protists: The Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution: The Invertebrates

Animal Evolution: The Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive System

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

Which prokaryotic nutritional group uses inorganic substances to produce energy and CO₂to build organic compounds?

or extend from many prokaryotic cells and serve in attachment and motility.

The methanogenic archaeans are that pull electrons from .

Which prokaryotic nutritional groups use CO₂and sunlight to produce energy?