Question 1

Why are viruses not considered to be alive?

Accepted Answer

The first reason is that viruses are not cells, and cell theory states that all living things are cells.The second reason is that viruses are unable to replicate on their own and depend on host cells to facilitate the process.

Question 2

Which of the following prokaryotic nutritional groups use organic substances for carbon and photons for energy?

Accepted Answer

A)  photoautotrophs 
B)  chemoautotrophs 
C)  photoheterotrophs 
D)  chemoheterotrophs 
E)  none of these 
A)  photoautotrophs 
B)  chemoautotrophs 
C)  photoheterotrophs 
D)  chemoheterotrophs 
E)  none of these C

Question 3

MATCHING
Classification.Answer the following questions using the five groups listed below:
a.halophiles
b.cyanobacteria
c.thermophiles
d.proteobacteria
e.methanogens
-These can form heterocysts, valuable in nitrogen fixation.

Accepted Answer

B

Question 4

MATCHING
Classification.Answer the following questions using the five groups listed below:
a.halophiles
b.cyanobacteria
c.thermophiles
d.proteobacteria
e.methanogens
-Bacteriophages may multiply by a __________ pathway in which the new viral particles are made quickly and released by lysis.

Accepted Answer

The answer of MATCHING
Classification.Answer the following questions using the five...

Question 5

An adenovirus

Accepted Answer

A)  is a naked virus. 
B)  does not have a lipid envelope. 
C)  has a spiked protein coat. 
D)  infects animals. 
E)  all of these. 
A)  is a naked virus. 
B)  does not have a lipid envelope. 
C)  has a spiked protein coat. 
D)  infects animals. 
E)  all of these.

Question 6

Plasmids

Accepted Answer

A)  are self-replicating circular molecules of DNA. 
B)  may be transferred between bacteria. 
C)  may pick up genes from other prokaryotes. 
D)  contains genes separate from the bacterial chromosome. 
E)  fit all of these descriptions. 
A)  are self-replicating circular molecules of DNA. 
B)  may be transferred between bacteria. 
C)  may pick up genes from other prokaryotes. 
D)  contains genes separate from the bacterial chromosome. 
E)  fit all of these descriptions.

Question 7

MATCHING
Classification.Answer the following questions using the five groups listed below:
a.halophiles
b.cyanobacteria
c.thermophiles
d.proteobacteria
e.methanogens
-The __________ is a circular molecule of DNA that resides in a region of cytoplasm called the __________.

Accepted Answer

prokaryoti

Question 8

How does the lysogenic cycle differ from the lytic cycle?

Accepted Answer

For the most part the two are similar.Bu

Question 9

MATCHING
Classification.Answer the following questions using the five groups listed below:
a.halophiles
b.cyanobacteria
c.thermophiles
d.proteobacteria
e.methanogens
-A virus infects a host cell and takes over the host's mechanisms of replication and __________ synthesis.

Accepted Answer

The answer of MATCHING
Classification.Answer the following questions using the five...

Question 10

The methanogenic archaeans belong 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 11

MATCHING
Classification.Answer the following questions using the five groups listed below:
a.halophiles
b.cyanobacteria
c.thermophiles
d.proteobacteria
e.methanogens
-These are the most diverse monophyletic group of bacteria.

Accepted Answer

The answer of MATCHING
Classification.Answer the following questions using the five...

Question 12

Peptidoglycan is a compound in

Accepted Answer

A)  bacterial flagella. 
B)  bacterial cell walls. 
C)  archaean cell walls. 
D)  archaean flagella. 
E)  all of these. 
A)  bacterial flagella. 
B)  bacterial cell walls. 
C)  archaean cell walls. 
D)  archaean flagella. 
E)  all of these.

Question 13

Which of the following does NOT characterize most prokaryotes?

Accepted Answer

A)  no nucleus 
B)  a single circular chromosome 
C)  cell wall 
D)  complex internal membranes 
E)  great metabolic diversity 
A)  no nucleus 
B)  a single circular chromosome 
C)  cell wall 
D)  complex internal membranes 
E)  great metabolic diversity

Question 14

Retroviruses are characterized by

Accepted Answer

A)  an RNA core. 
B)  integrating DNA into the host's chromosome. 
C)  the enzyme reverse transcriptase. 
D)  having one strain that causes AIDS. 
E)  all of these. 
A)  an RNA core. 
B)  integrating DNA into the host's chromosome. 
C)  the enzyme reverse transcriptase. 
D)  having one strain that causes AIDS. 
E)  all of these.

Question 15

Sequencing of HIV-1 revealed that it is most closely related to which of the following?

Accepted Answer

A)  simian immunodeficiency virus 
B)  feline immunodeficiency virus 
C)  bovine immunodeficiency virus 
D)  hepatitis B 
E)  all of these 
A)  simian immunodeficiency virus 
B)  feline immunodeficiency virus 
C)  bovine immunodeficiency virus 
D)  hepatitis B 
E)  all of these

Question 16

Which of the following distinguishes bacterial flagella from those of eukaryotes?

Accepted Answer

A)  number per cell and structure 
B)  structure and mechanism of movement 
C)  function and mechanism of movement 
D)  number per cell and mechanism of movement 
E)  number per cell and function 
A)  number per cell and structure 
B)  structure and mechanism of movement 
C)  function and mechanism of movement 
D)  number per cell and mechanism of movement 
E)  number per cell and function

Question 17

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

Accepted Answer

methanogens; extreme

Question 18

MATCHING
Classification.Answer the following questions using the five groups listed below:
a.halophiles
b.cyanobacteria
c.thermophiles
d.proteobacteria
e.methanogens
-These bacteria live in temperatures that are not usually conducive to life.

Accepted Answer

The answer of MATCHING
Classification.Answer the following questions using the five...

Question 19

Which of the following is an intracellular parasite that causes sexually transmitted disease?

Accepted Answer

A)  Chlamydia 
B)  Cyanobacteria 
C)  Clostridium 
D)  Chondromyces 
E)  all of these 
A)  Chlamydia 
B)  Cyanobacteria 
C)  Clostridium 
D)  Chondromyces 
E)  all of these

Question 20

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

Exam 20: Viruses and Prokaryotes

Why are viruses not considered to be alive?

Which of the following prokaryotic nutritional groups use organic substances for carbon and photons for energy?

MATCHING Classification.Answer the following questions using the five groups listed below: a.halophiles b.cyanobacteria c.thermophiles d.proteobacteria e.methanogens -These can form heterocysts, valuable in nitrogen fixation.

MATCHING Classification.Answer the following questions using the five groups listed below: a.halophiles b.cyanobacteria c.thermophiles d.proteobacteria e.methanogens -Bacteriophages may multiply by a __________ pathway in which the new viral particles are made quickly and released by lysis.

An adenovirus

Plasmids

MATCHING Classification.Answer the following questions using the five groups listed below: a.halophiles b.cyanobacteria c.thermophiles d.proteobacteria e.methanogens -The __________ is a circular molecule of DNA that resides in a region of cytoplasm called the __________.

How does the lysogenic cycle differ from the lytic cycle?

MATCHING Classification.Answer the following questions using the five groups listed below: a.halophiles b.cyanobacteria c.thermophiles d.proteobacteria e.methanogens -A virus infects a host cell and takes over the host's mechanisms of replication and __________ synthesis.

The methanogenic archaeans belong are ____.

MATCHING Classification.Answer the following questions using the five groups listed below: a.halophiles b.cyanobacteria c.thermophiles d.proteobacteria e.methanogens -These are the most diverse monophyletic group of bacteria.

Peptidoglycan is a compound in

Which of the following does NOT characterize most prokaryotes?

Retroviruses are characterized by

Sequencing of HIV-1 revealed that it is most closely related to which of the following?

Which of the following distinguishes bacterial flagella from those of eukaryotes?

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

MATCHING Classification.Answer the following questions using the five groups listed below: a.halophiles b.cyanobacteria c.thermophiles d.proteobacteria e.methanogens -These bacteria live in temperatures that are not usually conducive to life.

Which of the following is an intracellular parasite that causes sexually transmitted disease?

The methanogenic archaeans are ____ that pull electrons from ____.

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Startsphotosynthesis

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

Organizing Information About Species

Lifes Origin and Early Evolution

Protiststhe Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolutionthe Invertebrates

Animal Evolutionthe Chordates

Animal Evolutionhuman 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 Systems

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

MATCHING Classification.Answer the following questions using the five groups listed below: a.halophiles b.cyanobacteria c.thermophiles d.proteobacteria e.methanogens -The is a circular molecule of DNA that resides in a region of cytoplasm called the .

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

The methanogenic archaeans are that pull electrons from .