Question 1

What component is located on the exterior surface of a prokaryote?

Accepted Answer

A)  Flagellum 
B)  Cytoplasm 
C)  Plasma membrane 
D)  DNA 
E)  Nucleoid 
A)  Flagellum 
B)  Cytoplasm 
C)  Plasma membrane 
D)  DNA 
E)  Nucleoid

Question 2

Archaea reproduce primarily through ____.

Accepted Answer

A)  fusion 
B)  binary fission 
C)  sex 
D)  meiosis 
E)  cell joining 
A)  fusion 
B)  binary fission 
C)  sex 
D)  meiosis 
E)  cell joining

Question 3

Archaeans include three main groups: methanogens (methane producers),extreme __________ (salt lovers),and extreme __________ (heat lovers).

Accepted Answer

halophiles

Question 4

What is the shape of cocci?

Accepted Answer

A)  Linear 
B)  Tubular 
C)  Oval 
D)  Spherical 
E)  Spring-like 
A)  Linear 
B)  Tubular 
C)  Oval 
D)  Spherical 
E)  Spring-like

Question 5

Gram-positive bacteria have ____ and appear ____ under the microscope after Gram staining.

Accepted Answer

A)  thick cell walls; pink 
B)  thick cell walls; purple 
C)  thin cell walls; pink 
D)  thin cell walls; purple 
E)  thin cell walls; blue 
A)  thick cell walls; pink 
B)  thick cell walls; purple 
C)  thin cell walls; pink 
D)  thin cell walls; purple 
E)  thin cell walls; blue

Question 6

Pili may do four of the following.Which is the exception?

Accepted Answer

A)  They help cells attach to surfaces. 
B)  They function in conjugation. 
C)  They extend from the cell surface. 
D)  They can be transferred between cells. 
E)  They function in cell locomotion. 
A)  They help cells attach to surfaces. 
B)  They function in conjugation. 
C)  They extend from the cell surface. 
D)  They can be transferred between cells. 
E)  They function in cell locomotion.

Question 7

Answer the following questions using the five groups listed below:
-These are the most diverse monophyletic group of bacteria.

Accepted Answer

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

Question 8

Most species of Gram-positive bacteria are ____.

Accepted Answer

A)  photoautotrophic 
B)  photoheterotrophic 
C)  chemoautotrophic 
D)  chemoheterotrophic 
E)  photochemoautotrophic 
A)  photoautotrophic 
B)  photoheterotrophic 
C)  chemoautotrophic 
D)  chemoheterotrophic 
E)  photochemoautotrophic

Question 9

Some viruses cause disease; they act as __________ in humans.

Accepted Answer

The answer of Some viruses cause disease; they act as...

Question 10

A(n)__________ is a virus that infects only bacteria.

Accepted Answer

The answer of A(n)__________ is a virus that infects only...

Question 11

Bacteriophages may multiply by a(n)__________ pathway in which the new viral particles are made quickly and released by lysis.

Accepted Answer

The answer of Bacteriophages may multiply by a(n)__________ pathway in...

Question 12

Which statement is LEAST characteristic of proteobacteria?

Accepted Answer

A)  They live only inside plants. 
B)  Some eat other bacteria. 
C)  Some are chemoheterotrophs. 
D)  A member of this group gave rise to mitochondria. 
E)  They are the most diverse group of bacteria. 
A)  They live only inside plants. 
B)  Some eat other bacteria. 
C)  Some are chemoheterotrophs. 
D)  A member of this group gave rise to mitochondria. 
E)  They are the most diverse group of bacteria.

Question 13

Answer the following questions using the five groups listed below:
-These bacteria live in temperatures that are not usually conducive to life.

Accepted Answer

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

Question 14

Four of the following characterize most prokaryotes.Which one is the exception?

Accepted Answer

A)  Lack of a nucleus 
B)  A single circular chromosome 
C)  Cell wall 
D)  Complex internal membranes 
E)  Great metabolic diversity 
A)  Lack of a nucleus 
B)  A single circular chromosome 
C)  Cell wall 
D)  Complex internal membranes 
E)  Great metabolic diversity

Question 15

Four of the following are involved in the reproduction of all viruses.Which one is not?

Accepted Answer

A)  Attachment and penetration 
B)  Replication and synthesis 
C)  Assembly 
D)  Latency 
E)  Release 
A)  Attachment and penetration 
B)  Replication and synthesis 
C)  Assembly 
D)  Latency 
E)  Release

Question 16

The following statements are true about some cyanobacterial species except:

Accepted Answer

A)  gave rise to chloroplasts. 
B)  can partner with fungi in a symbiotic relationship. 
C)  can fix nitrogen. 
D)  form filaments in water. 
E)  do not perform photosynthesis. 
A)  gave rise to chloroplasts. 
B)  can partner with fungi in a symbiotic relationship. 
C)  can fix nitrogen. 
D)  form filaments in water. 
E)  do not perform photosynthesis.

Exam 20: Viruses, Bacteria, and Archaea

What component is located on the exterior surface of a prokaryote?

Archaea reproduce primarily through ____.

Archaeans include three main groups: methanogens (methane producers),extreme __________ (salt lovers),and extreme __________ (heat lovers).

What is the shape of cocci?

Gram-positive bacteria have ____ and appear ____ under the microscope after Gram staining.

Pili may do four of the following.Which is the exception?

Answer the following questions using the five groups listed below: -These are the most diverse monophyletic group of bacteria.

Most species of Gram-positive bacteria are ____.

Some viruses cause disease; they act as __________ in humans.

A(n)__________ is a virus that infects only bacteria.

Bacteriophages may multiply by a(n)__________ pathway in which the new viral particles are made quickly and released by lysis.

Which statement is LEAST characteristic of proteobacteria?

Answer the following questions using the five groups listed below: -These bacteria live in temperatures that are not usually conducive to life.

Four of the following characterize most prokaryotes.Which one is the exception?

Four of the following are involved in the reproduction of all viruses.Which one is not?

The following statements are true about some cyanobacterial species except:

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

Archaeans include three main groups: methanogens (methane producers),extreme (salt lovers),and extreme (heat lovers).

Gram-positive bacteria have and appear under the microscope after Gram staining.