Question 1

Chlamydomonas "mating types" differ in what way?

Accepted Answer

A) chloroplasts 
B) flagella structure 
C) interlocking male and female parts 
D) membrane phospholipids 
A) chloroplasts 
B) flagella structure 
C) interlocking male and female parts 
D) membrane phospholipids

Question 2

Most bacteria present in the human intestines are pathogenic.

Accepted Answer

A) True 
 B)False

Question 3

In what type of environment would you be most likely to find anaerobes?

Accepted Answer

A) high temperature 
B) high acidity 
C) high salt content 
D) no oxygen 
A) high temperature 
B) high acidity 
C) high salt content 
D) no oxygen

Question 4

Which phrase most accurately describes the genome of most viruses?

Accepted Answer

A) surprisingly complex, with tens of thousands of genes 
B) surprisingly complex, with around 1 million genes 
C) the same as most bacteria, with hundreds of genes 
D) relatively simple, with around a dozen genes or fewer 
A) surprisingly complex, with tens of thousands of genes 
B) surprisingly complex, with around 1 million genes 
C) the same as most bacteria, with hundreds of genes 
D) relatively simple, with around a dozen genes or fewer

Question 5

Malaria is caused by a bacterium.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is the best description of a virus?

Accepted Answer

A) A virus is the smallest living thing. 
B) A virus is a life-form that can reproduce inside cells or independently. 
C) A virus is a tiny spore-producing cell. 
D) A virus is a noncellular, replicating entity. 
A) A virus is the smallest living thing. 
B) A virus is a life-form that can reproduce inside cells or independently. 
C) A virus is a tiny spore-producing cell. 
D) A virus is a noncellular, replicating entity.

Question 7

Protists are arguably the most diverse of the eukaryotic kingdoms.Defend that statement using examples to support your ideas.

Accepted Answer

The protists include photosynthetic orga

Question 8

If antibiotics seem effective against a human illness,then this illness is probably caused by a/an:

Accepted Answer

A) protist. 
B) autoimmune disease. 
C) virus. 
D) bacterium. 
A) protist. 
B) autoimmune disease. 
C) virus. 
D) bacterium.

Question 9

Amoeba and phytoplankton differ in that phytoplankton can:

Accepted Answer

A) perform photosynthesis. 
B) eat krill. 
C) move with pseudopodia. 
D) live on land. 
A) perform photosynthesis. 
B) eat krill. 
C) move with pseudopodia. 
D) live on land.

Question 10

Refer to the scenario below, and then answer the following question(s).
As part of your field biology independent study, you visit a small lake with an extremely high salt concentration. Searching with nets and other sampling devices, you find no fish, plants, algae, or any visible signs of life in the lake. Still, you decide to take a few samples of the water back to the lab. You find the sample teeming with very small cells, hundreds of times smaller than a typical human cell. These cells have cell walls, which you analyze chemically and find they are not made of peptidoglycan or cellulose.
-Based upon the environment in which you found these life-forms,how would you categorize them?

Accepted Answer

A) thermophiles 
B) halophiles 
C) anaerobes 
D) methanogens 
A) thermophiles 
B) halophiles 
C) anaerobes 
D) methanogens

Question 11

A major difference between bacteria and eukaryotes is that bacteria have:

Accepted Answer

A) a rod-shaped nucleus. 
B) no membrane-bound organelles. 
C) faster mitosis as their method of sexual reproduction. 
D) no ribosomes. 
A) a rod-shaped nucleus. 
B) no membrane-bound organelles. 
C) faster mitosis as their method of sexual reproduction. 
D) no ribosomes.

Question 12

The core of some viruses is carbohydrate in nature.

Accepted Answer

A) True 
 B)False

Question 13

The life cycle of viruses involves:

Accepted Answer

A) production of new virus particles on the outside of a cell. 
B) reproducing on the surface of a cell. 
C) filling the host cell with viral particles. 
D) attaching viral DNA to the surface of a cell. 
A) production of new virus particles on the outside of a cell. 
B) reproducing on the surface of a cell. 
C) filling the host cell with viral particles. 
D) attaching viral DNA to the surface of a cell.

Question 14

Which of the following would support the statement that bacteria represent the most fundamentally diverse group on Earth?

Accepted Answer

A) Bacteria exist in varieties with and without cell walls. 
B) Bacteria accomplish all characteristics of life as small, single cells. 
C) Bacteria are metabolically diverse regarding oxygen and food requirements. 
D) Bacteria come in several different shapes. 
A) Bacteria exist in varieties with and without cell walls. 
B) Bacteria accomplish all characteristics of life as small, single cells. 
C) Bacteria are metabolically diverse regarding oxygen and food requirements. 
D) Bacteria come in several different shapes.

Question 15

Cells such as those of golden algae that form stable associations but do not take on specialized roles are described as:

Accepted Answer

A) incomplete unicellular. 
B) selective multicellularity. 
C) true multicellularity. 
D) colonial multicellularity. 
A) incomplete unicellular. 
B) selective multicellularity. 
C) true multicellularity. 
D) colonial multicellularity.

Question 16

Methanogens are in the ________ category of extremophile.

Accepted Answer

The answer of Methanogens are in the ________ category of...

Question 17

What is the benefit of sexual reproduction in protists?

Accepted Answer

A) greater variation among offspring 
B) fast increase in numbers 
C) availability of more environments 
D) ease of finding a mate 
A) greater variation among offspring 
B) fast increase in numbers 
C) availability of more environments 
D) ease of finding a mate

Question 18

Which of the following areas/conditions would be favored by thermophiles?

Accepted Answer

A) anaerobic conditions 
B) deep-sea volcanic vents 
C) the arctic tundra 
D) the stomachs of herbivores 
A) anaerobic conditions 
B) deep-sea volcanic vents 
C) the arctic tundra 
D) the stomachs of herbivores

Question 19

When a virus takes over the machinery of a cell,it forces the cell to manufacture more viral particles.

Accepted Answer

A) True 
 B)False

Question 20

In general,most antibiotics work by:

Accepted Answer

A) exploiting differences between human and bacterial cells. 
B) preventing bacteria from entering human cells. 
C) preventing viruses from entering human cells. 
D) boosting the human immune system. 
A) exploiting differences between human and bacterial cells. 
B) preventing bacteria from entering human cells. 
C) preventing viruses from entering human cells. 
D) boosting the human immune system.

Exam 21: Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Chlamydomonas "mating types" differ in what way?

Most bacteria present in the human intestines are pathogenic.

In what type of environment would you be most likely to find anaerobes?

Which phrase most accurately describes the genome of most viruses?

Malaria is caused by a bacterium.

Which of the following is the best description of a virus?

Protists are arguably the most diverse of the eukaryotic kingdoms.Defend that statement using examples to support your ideas.

If antibiotics seem effective against a human illness,then this illness is probably caused by a/an:

Amoeba and phytoplankton differ in that phytoplankton can:

A major difference between bacteria and eukaryotes is that bacteria have:

The core of some viruses is carbohydrate in nature.

The life cycle of viruses involves:

Which of the following would support the statement that bacteria represent the most fundamentally diverse group on Earth?

Cells such as those of golden algae that form stable associations but do not take on specialized roles are described as:

Methanogens are in the ________ category of extremophile.

What is the benefit of sexual reproduction in protists?

Which of the following areas/conditions would be favored by thermophiles?

When a virus takes over the machinery of a cell,it forces the cell to manufacture more viral particles.

In general,most antibiotics work by:

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

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