Question 1

Entamoeba histolytica is a/an:

Accepted Answer

A) photosynthetic protist. 
B) protist that moves using flagella. 
C) parasitic protist responsible for dysentery. 
D) aggregating protist that can form a "slug-like" organism. 
A) photosynthetic protist. 
B) protist that moves using flagella. 
C) parasitic protist responsible for dysentery. 
D) aggregating protist that can form a "slug-like" organism. C

Question 2

Virus-like entities called viroids lack a ________ and are simply strands of infectious RNA.

Accepted Answer

capsid

Question 3

Bacteria that benefit from living in or on us while we are unaffected by the relationship are termed:

Accepted Answer

A) commensal. 
B) pathogenic. 
C) mutualistic. 
D) probiotic. 
A) commensal. 
B) pathogenic. 
C) mutualistic. 
D) probiotic. A

Question 4

Organisms called plasmodial slime molds move by which process?

Accepted Answer

A) beating of cilia 
B) cytoplasmic streaming 
C) contractile cytoskeleton movements 
D) growth in the direction of sunlight 
A) beating of cilia 
B) cytoplasmic streaming 
C) contractile cytoskeleton movements 
D) growth in the direction of sunlight

Question 5

Refer to the figure below, and then answer the following question(s).
  
-The missing label indicated by a "1" corresponds to the:

Accepted Answer

A) receptor. 
B) capsid. 
C) RNA. 
D) envelope. 
A) receptor. 
B) capsid. 
C) RNA. 
D) envelope.

Question 6

An example of a protist intestinal parasite would be:

Accepted Answer

A) Clostridium botulinum. 
B) Yersinia pestis. 
C) Chlamydomonas. 
D) Giardia. 
A) Clostridium botulinum. 
B) Yersinia pestis. 
C) Chlamydomonas. 
D) Giardia.

Question 7

Nearly half the antibiotics used in the United States go into animal feed as growth stimulants.

Accepted Answer

A) True 
 B)False

Question 8

The process by which viruses can exchange genetic sequences to come up with a "new" virus such as H1N1 is:

Accepted Answer

A) recombination. 
B) reassortment. 
C) independent assortment. 
D) conjugation. 
A) recombination. 
B) reassortment. 
C) independent assortment. 
D) conjugation.

Question 9

Which of the following is true of Domain Archaea compared to other groups?

Accepted Answer

A) They are the only anaerobes on Earth. 
B) Their cell wall and membrane biochemistry is unique. 
C) Most of their genes are similar to those found in bacteria. 
D) None of their genes work like those found in eukaryotes. 
A) They are the only anaerobes on Earth. 
B) Their cell wall and membrane biochemistry is unique. 
C) Most of their genes are similar to those found in bacteria. 
D) None of their genes work like those found in eukaryotes.

Question 10

Bacteria are the smallest living things known.

Accepted Answer

A) True 
 B)False

Question 11

Microscopic algae and bacteria produce over half of the oxygen in the atmosphere.

Accepted Answer

A) True 
 B)False

Question 12

Match between columns
                        Premises: Volvox
H1N1 virus
The bacterium Yersinia pestis
Dictyostelium discoideum
Paramecium

Accepted Answer

The Answer of ciliated protist and "social amoeba" and a is...

Question 13

Which statement best describes our current understanding of protist evolution?

Accepted Answer

A) Protists evolved from the Archaea while other eukaryotes did not. 
B) Protists evolved from multicellular eukaryotes. 
C) Protists evolved from separate branches off the early eukaryotic line. 
D) Protists evolved from eukaryotic parasites. 
A) Protists evolved from the Archaea while other eukaryotes did not. 
B) Protists evolved from multicellular eukaryotes. 
C) Protists evolved from separate branches off the early eukaryotic line. 
D) Protists evolved from eukaryotic parasites.

Question 14

Photosynthetic aquatic microorganisms,such as some bacteria and protists,are known as ________.

Accepted Answer

The answer of Photosynthetic aquatic microorganisms,such as some bacteria and...

Question 15

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 chemical experiments you performed,how would you classify these life-forms?

Accepted Answer

A) protists 
B) fungi 
C) bacteria 
D) archaea 
A) protists 
B) fungi 
C) bacteria 
D) archaea

Question 16

Which of the following would support the hypothesis that bacteria have mutually beneficial relationships with us?

Accepted Answer

A) Bacteria derive benefit from waste materials in our intestines. 
B) Mice that were made "germ free" did not absorb and metabolize nutrients as well. 
C) Bacteria can metabolize food using alternate pathways. 
D) Most intestinal bacteria cannot live outside the body. 
A) Bacteria derive benefit from waste materials in our intestines. 
B) Mice that were made "germ free" did not absorb and metabolize nutrients as well. 
C) Bacteria can metabolize food using alternate pathways. 
D) Most intestinal bacteria cannot live outside the body.

Question 17

Which organisms accomplish most of the work of converting atmospheric nitrogen into a form usable to green plants?

Accepted Answer

A) bacteria and archaea 
B) viruses 
C) protists 
D) fungi 
A) bacteria and archaea 
B) viruses 
C) protists 
D) fungi

Question 18

A bacterium that is pathogenic:

Accepted Answer

A) is flexible regarding use of metabolic pathways. 
B) has genes similar to viruses. 
C) is a disease-causing organism. 
D) benefits from living inside humans and produces nutrients for us. 
A) is flexible regarding use of metabolic pathways. 
B) has genes similar to viruses. 
C) is a disease-causing organism. 
D) benefits from living inside humans and produces nutrients for us.

Question 19

Which organisms form the basic foundation of the food chain in the ocean?

Accepted Answer

A) shrimp 
B) krill 
C) phytoplankton 
D) jellyfish 
A) shrimp 
B) krill 
C) phytoplankton 
D) jellyfish

Question 20

Plasmodium falciparum is a protozoan that:

Accepted Answer

A) can switch between plant and animal lifestyles. 
B) is closely related to fungi. 
C) causes malaria. 
D) causes intestinal distress. 
A) can switch between plant and animal lifestyles. 
B) is closely related to fungi. 
C) causes malaria. 
D) causes intestinal distress.

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

Entamoeba histolytica is a/an:

Virus-like entities called viroids lack a ________ and are simply strands of infectious RNA.

Bacteria that benefit from living in or on us while we are unaffected by the relationship are termed:

Organisms called plasmodial slime molds move by which process?

Refer to the figure below, and then answer the following question(s). -The missing label indicated by a "1" corresponds to the:

An example of a protist intestinal parasite would be:

Nearly half the antibiotics used in the United States go into animal feed as growth stimulants.

The process by which viruses can exchange genetic sequences to come up with a "new" virus such as H1N1 is:

Which of the following is true of Domain Archaea compared to other groups?

Bacteria are the smallest living things known.

Microscopic algae and bacteria produce over half of the oxygen in the atmosphere.

Which statement best describes our current understanding of protist evolution?

Photosynthetic aquatic microorganisms,such as some bacteria and protists,are known as ________.

Which of the following would support the hypothesis that bacteria have mutually beneficial relationships with us?

Which organisms accomplish most of the work of converting atmospheric nitrogen into a form usable to green plants?

A bacterium that is pathogenic:

Which organisms form the basic foundation of the food chain in the ocean?

Plasmodium falciparum is a protozoan that:

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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