Question 1

Which of the following infects only plants?

Accepted Answer

A)  Virus 
B)  Prion 
C)  Viroid 
D)  Capsid 
A)  Virus 
B)  Prion 
C)  Viroid 
D)  Capsid

Question 2

Which of the following statements is true of bacteria on this planet?

Accepted Answer

A)  There are more helpful than harmful bacteria. 
B)  There are more harmful than helpful bacteria. 
C)  There are about as many helpful as harmful bacteria. 
D)  Bacteria have neither a positive nor a negative impact on human society. 
A)  There are more helpful than harmful bacteria. 
B)  There are more harmful than helpful bacteria. 
C)  There are about as many helpful as harmful bacteria. 
D)  Bacteria have neither a positive nor a negative impact on human society.

Question 3

What do scientists believe was the original genetic material able to copy itself without assistance?

Accepted Answer

A)  DNA 
B)  RNA 
C)  Proteins 
D)  Enzymes 
A)  DNA 
B)  RNA 
C)  Proteins 
D)  Enzymes

Question 4

Although most biologists do not consider viruses to be alive,viruses do share some characteristics with living things.Which of the following is the requirement for life that viruses lack?

Accepted Answer

A)  The ability to reproduce on their own 
B)  The ability to move 
C)  Having genetic material 
D)  Having highly ordered structure 
A)  The ability to reproduce on their own 
B)  The ability to move 
C)  Having genetic material 
D)  Having highly ordered structure

Question 5

The misshapen version of a protein that causes properly folded proteins to misfold is the ________.

Accepted Answer

A)  virus 
B)  prion 
C)  viroid 
D)  capsid 
A)  virus 
B)  prion 
C)  viroid 
D)  capsid

Question 6

Based on the endosymbiosis theory that highlights where chloroplasts come from,how would you expect chloroplasts to divide when a plant cell divides?

Accepted Answer

A)  Via mitosis 
B)  Via meiosis 
C)  Via binary fission 
D)  Via endosymbiosis 
A)  Via mitosis 
B)  Via meiosis 
C)  Via binary fission 
D)  Via endosymbiosis

Question 7

Which organisms contain the smallest,least complex cell types?

Accepted Answer

A)  Animal cells 
B)  Bacteria cells 
C)  Plant cells 
D)  Fungal cells 
A)  Animal cells 
B)  Bacteria cells 
C)  Plant cells 
D)  Fungal cells

Question 8

Many of the organic molecules associated with life can be created spontaneously under certain conditions.What do these conditions resemble?

Accepted Answer

A)  Earth's core 
B)  Primordial Earth 
C)  The sun 
D)  A comet 
A)  Earth's core 
B)  Primordial Earth 
C)  The sun 
D)  A comet

Question 9

Which was first on the planet,prokaryotes or eukaryotes?

Accepted Answer

A)  Eukaryotes 
B)  Prokaryotes 
C)  They both appear in the fossil record at about the same time. 
D)  It is unknown. 
A)  Eukaryotes 
B)  Prokaryotes 
C)  They both appear in the fossil record at about the same time. 
D)  It is unknown.

Question 10

Pathogen is ________.

Accepted Answer

A)  a name given to all bacteria 
B)  a name given only to bacteria that cause serious illnesses in humans 
C)  a name given to all archaea 
D)  a name given only to helpful bacteria 
A)  a name given to all bacteria 
B)  a name given only to bacteria that cause serious illnesses in humans 
C)  a name given to all archaea 
D)  a name given only to helpful bacteria

Question 11

How do viruses make copies of themselves?

Accepted Answer

A)  By taking the nutrients of the host cell they infected 
B)  By using the cellular machinery of the host cell they infected 
C)  By digesting the host cell they infected 
D)  By targeting their host cell they infected for cell death 
A)  By taking the nutrients of the host cell they infected 
B)  By using the cellular machinery of the host cell they infected 
C)  By digesting the host cell they infected 
D)  By targeting their host cell they infected for cell death

Question 12

Which of the following is a way in which bacteria help the environment?

Accepted Answer

A)  They are used to water in sewage treatment facilities. 
B)  They break down dead organisms in the soil and recycle nutrients. 
C)  They remove pollutants from the environment. 
D)  All of the above are ways in which bacteria help the environment. 
A)  They are used to water in sewage treatment facilities. 
B)  They break down dead organisms in the soil and recycle nutrients. 
C)  They remove pollutants from the environment. 
D)  All of the above are ways in which bacteria help the environment.

Question 13

The protists are grouped together simply for convenience.Why are they not considered to be in a specific taxon such as a kingdom or a phylum?

Accepted Answer

They evolved independently on

Question 14

Which is not a method bacteria use to generate new combinations of genes?

Accepted Answer

A)  Transformation 
B)  Transduction 
C)  Binary fission 
D)  Conjugation 
A)  Transformation 
B)  Transduction 
C)  Binary fission 
D)  Conjugation

Question 15

What are the main steps of biogenesis,in the correct order?

Accepted Answer

A)  Polymers, monomers, self-replicating molecules, first cells 
B)  Self-replicating molecules, monomers, polymers, first cells 
C)  Monomers, self-replicating molecules, polymers, first cells 
D)  Monomers, Polymers, self-replicating molecules, first cells 
A)  Polymers, monomers, self-replicating molecules, first cells 
B)  Self-replicating molecules, monomers, polymers, first cells 
C)  Monomers, self-replicating molecules, polymers, first cells 
D)  Monomers, Polymers, self-replicating molecules, first cells

Question 16

How long did it take in the history of life on Earth to go from the first prokaryotic cells to the first eukaryotic cells?

Accepted Answer

A)  1,000 years 
B)  100,000 years 
C)  1 million years 
D)  Over a billion years 
A)  1,000 years 
B)  100,000 years 
C)  1 million years 
D)  Over a billion years

Question 17

Which of the following do not get infected by viruses?

Accepted Answer

A)  Animals 
B)  Plants 
C)  Bacteria 
D)  All of these can be infected by viruses. 
A)  Animals 
B)  Plants 
C)  Bacteria 
D)  All of these can be infected by viruses.

Question 18

When did the first eukaryotic cell form?

Accepted Answer

A)  2.1 thousand years ago 
B)  2.1 million years ago 
C)  2.1 billion years ago 
D)  3.7 billion years ago 
A)  2.1 thousand years ago 
B)  2.1 million years ago 
C)  2.1 billion years ago 
D)  3.7 billion years ago

Which of the following infects only plants?

Which of the following statements is true of bacteria on this planet?

What do scientists believe was the original genetic material able to copy itself without assistance?

Although most biologists do not consider viruses to be alive,viruses do share some characteristics with living things.Which of the following is the requirement for life that viruses lack?

The misshapen version of a protein that causes properly folded proteins to misfold is the ________.

Based on the endosymbiosis theory that highlights where chloroplasts come from,how would you expect chloroplasts to divide when a plant cell divides?

Which organisms contain the smallest,least complex cell types?

Many of the organic molecules associated with life can be created spontaneously under certain conditions.What do these conditions resemble?

Which was first on the planet,prokaryotes or eukaryotes?

Pathogen is ________.

How do viruses make copies of themselves?

Which of the following is a way in which bacteria help the environment?

The protists are grouped together simply for convenience.Why are they not considered to be in a specific taxon such as a kingdom or a phylum?

Which is not a method bacteria use to generate new combinations of genes?

What are the main steps of biogenesis,in the correct order?

How long did it take in the history of life on Earth to go from the first prokaryotic cells to the first eukaryotic cells?

Which of the following do not get infected by viruses?

When did the first eukaryotic cell form?

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

Dna: the Molecule of Life

Darwinian Evolution

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Exam 8: Biodiversity 1: Microscopic Organisms

Which of the following infects only plants?

Which of the following statements is true of bacteria on this planet?

What do scientists believe was the original genetic material able to copy itself without assistance?

Although most biologists do not consider viruses to be alive,viruses do share some characteristics with living things.Which of the following is the requirement for life that viruses lack?

The misshapen version of a protein that causes properly folded proteins to misfold is the ________.

Based on the endosymbiosis theory that highlights where chloroplasts come from,how would you expect chloroplasts to divide when a plant cell divides?

Which organisms contain the smallest,least complex cell types?

Many of the organic molecules associated with life can be created spontaneously under certain conditions.What do these conditions resemble?

Which was first on the planet,prokaryotes or eukaryotes?

Pathogen is ________.

How do viruses make copies of themselves?

Which of the following is a way in which bacteria help the environment?

The protists are grouped together simply for convenience.Why are they not considered to be in a specific taxon such as a kingdom or a phylum?

Which is not a method bacteria use to generate new combinations of genes?

What are the main steps of biogenesis,in the correct order?

How long did it take in the history of life on Earth to go from the first prokaryotic cells to the first eukaryotic cells?

Which of the following do not get infected by viruses?

When did the first eukaryotic cell form?

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

Dna: the Molecule of Life

Darwinian Evolution

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters