Question 1

How do archaea differ from bacteria?

Accepted Answer

​For one, archaea are for more

Question 2

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 3

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

Accepted Answer

​halophiles; thermop

Question 4

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...

Question 5

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

Accepted Answer

​Pili; fla

Question 6

Four of the following are viral diseases. Which one is the exception?​

Accepted Answer

A)  ​herpes 
B)  ​measles 
C)  ​bubonic plague 
D)  ​hepatitis 
E)  ​chicken pox 
A)  ​herpes 
B)  ​measles 
C)  ​bubonic plague 
D)  ​hepatitis 
E)  ​chicken pox

Question 7

Why are viruses not considered to be alive?

Accepted Answer

​The first reason is that viruses are no

Question 8

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 9

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 10

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 11

The methanogenic archaeans are ____.

Accepted Answer

A)  ​aerobes 
B)  ​facultative anaerobes 
C)  ​strict aerobes 
D)  ​facultative anaerobes. 
E)  ​strict anaerobes 
A)  ​aerobes 
B)  ​facultative anaerobes 
C)  ​strict aerobes 
D)  ​facultative anaerobes. 
E)  ​strict anaerobes

Question 12

Which prokaryotic nutritional group uses CO₂ and inorganic substances 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

Question 13

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

Accepted Answer

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

Question 14

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

Question 15

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

Accepted Answer

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

Question 16

____ is a dangerous bacteria that infects wounds.

Accepted Answer

A)  ​Clostridium botulinum 
B)  ​Clostridium tetani 
C)  ​Bacillus anthracis 
D)  ​Heliobacter pylor 
E)  Thermus aquaticus 
A)  ​Clostridium botulinum 
B)  ​Clostridium tetani 
C)  ​Bacillus anthracis 
D)  ​Heliobacter pylor 
E)  Thermus aquaticus

Question 17

How does the lysogenic pathway differ from the lytic pathway?

Accepted Answer

​For the most part the two are similar.

Question 18

Which prokaryotic nutritional groups uses 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

Question 19

Four of the following are characteristics of an adenovirus. Which one is the exception?​

Accepted Answer

A)  ​is a naked virus 
B)  ​is the most common cause of the common cold 
C)  ​has a spiked protein coat 
D)  ​infects animals 
E)  ​has a lipid envelope 
A)  ​is a naked virus 
B)  ​is the most common cause of the common cold 
C)  ​has a spiked protein coat 
D)  ​infects animals 
E)  ​has a lipid envelope

Question 20

Which characteristic is LEAST accurate about endospores?​

Accepted Answer

A)  ​They can be destroyed with boiling water. 
B)  ​They are resistant to acids. 
C)  ​They can withstand irradiation. 
D)  ​They can remain viable for millions of years. 
E)  ​They can withstand drying out. 
A)  ​They can be destroyed with boiling water. 
B)  ​They are resistant to acids. 
C)  ​They can withstand irradiation. 
D)  ​They can remain viable for millions of years. 
E)  ​They can withstand drying out.

Exam 20: Viruses - Bacteria - and Archaea

How do archaea differ from bacteria?

Herpes and other enveloped viruses enter their host cells ____.

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

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

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

Four of the following are viral diseases. Which one is the exception?​

Why are viruses not considered to be alive?

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

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

Retroviruses are characterized by ____.

The methanogenic archaeans are ____.

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

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

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

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

____ is a dangerous bacteria that infects wounds.

How does the lysogenic pathway differ from the lytic pathway?

Which prokaryotic nutritional groups uses CO₂ and sunlight to produce energy?​

Four of the following are characteristics of an adenovirus. Which one is the exception?​

Which characteristic is LEAST accurate about endospores?​

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

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

Organizating Information About Species

Lifes Origin and Early Evolution

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Filters

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

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

Four of the following are viral diseases. Which one is the exception?

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

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

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

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

Which characteristic is LEAST accurate about endospores?