Question 1

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 2

In what way does prokaryotic fission resemble eukaryotic mitosis?

Accepted Answer

A) mechanism of chromosome movement 
B) genetically equivalent daughter cells are produced 
C) chromosome attachment 
D) production of a cytoskeletal framework for separating chromosomes 
E) all of these 
A) mechanism of chromosome movement 
B) genetically equivalent daughter cells are produced 
C) chromosome attachment 
D) production of a cytoskeletal framework for separating chromosomes 
E) all of these

Question 3

Who proposed the theory that prions infected humans following an outbreak of BSE in cattle?

Accepted Answer

A) Stanley Prusiner 
B) Adolph Hisler 
C) Andrew Webber 
D) Louis Pasteur 
E) Robert Koch 
A) Stanley Prusiner 
B) Adolph Hisler 
C) Andrew Webber 
D) Louis Pasteur 
E) Robert Koch

Question 4

Which of the following is false?

Accepted Answer

A) The outer coats of all viruses are alike. 
B) The virus contains either DNA or RNA at its core, but not both. 
C) Viruses infect organisms in all three domains of life. 
D) Most viruses have a protein coat or covering. 
E) Some viruses benefit us indirectly. 
A) The outer coats of all viruses are alike. 
B) The virus contains either DNA or RNA at its core, but not both. 
C) Viruses infect organisms in all three domains of life. 
D) Most viruses have a protein coat or covering. 
E) Some viruses benefit us indirectly.

Question 5

The name "virus" is appropriate because it is derived from Latin meaning

Accepted Answer

A) small. 
B) powerful. 
C) poison. 
D) dangerous. 
E) disease. 
A) small. 
B) powerful. 
C) poison. 
D) dangerous. 
E) disease.

Question 6

The geographic area on the continent of Africa that is hardest hit by AIDS is

Accepted Answer

A) northern Niger. 
B) southwest Ireland. 
C) sub-Saharan. 
D) costal South Africa. 
E) none of these. 
A) northern Niger. 
B) southwest Ireland. 
C) sub-Saharan. 
D) costal South Africa. 
E) none of these.

Question 7

Endospores can resist

Accepted Answer

A) boiling water. 
B) acids. 
C) irradiation. 
D) disinfectants. 
E) all of these. 
A) boiling water. 
B) acids. 
C) irradiation. 
D) disinfectants. 
E) all of these.

Question 8

Which of the following is NOT caused by one of the herpes viruses?

Accepted Answer

A)  cold sores 
B) West Nile encephalitis 
C) chicken pox 
D) genital herpes 
E) mononucleosis 
A)  cold sores 
B) West Nile encephalitis 
C) chicken pox 
D) genital herpes 
E) mononucleosis

Question 9

Which of the following is NOT true about cyanobacteria?

Accepted Answer

A) Cyanobacteria have the same light-capturing chlorophylls as plants. 
B) Chloroplasts evolved from ancient cyanobacteria. 
C) Cyanobacteria can fix carbon. 
D) Cyanobacteria can fix nitrogen. 
E) Cyanobacteria put nearly all of the nitrogen into Earth's atmosphere. 
A) Cyanobacteria have the same light-capturing chlorophylls as plants. 
B) Chloroplasts evolved from ancient cyanobacteria. 
C) Cyanobacteria can fix carbon. 
D) Cyanobacteria can fix nitrogen. 
E) Cyanobacteria put nearly all of the nitrogen into Earth's atmosphere.

Question 10

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

Question 11

Which of the following prokaryotic nutritional groups use organic substances for both carbon and 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

Question 12

Which of the following is NOT a characteristic of viruses?

Accepted Answer

A) Contains DNA or RNA genetic material. 
B) Contains cytoplasm and ribosomes. 
C) Has a protein coat. 
D) Can only replicate inside a living host cell. 
E) Is very small. 
A) Contains DNA or RNA genetic material. 
B) Contains cytoplasm and ribosomes. 
C) Has a protein coat. 
D) Can only replicate inside a living host cell. 
E) Is very small.

Question 13

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 14

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

Accepted Answer

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

Question 15

The methanogenic archaeans are __________.

Accepted Answer

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

Question 16

All of the following are true of Gram-positive bacteria EXCEPT

Accepted Answer

A) Some species are used to make popular foods. 
B) Some species lower the pH of skin and vaginal linings. 
C) Some species form endospores. 
D) Some species cause anthrax, tetanus, and botulism. 
E) Some species are used as vectors in genetic engineering. 
A) Some species are used to make popular foods. 
B) Some species lower the pH of skin and vaginal linings. 
C) Some species form endospores. 
D) Some species cause anthrax, tetanus, and botulism. 
E) Some species are used as vectors in genetic engineering.

Question 17

All of the following are located on the exterior surface of a prokaryote EXCEPT

Accepted Answer

A) flagellum 
B) pilus 
C) plasma membrane 
D) capsule 
E) none of these 
A) flagellum 
B) pilus 
C) plasma membrane 
D) capsule 
E) none of these

Question 18

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 19

Traditionally, an unknown bacterium is classified based on all the following EXCEPT

Accepted Answer

A) observable characteristics. 
B) shape. 
C) cell wall structure. 
D) metabolism. 
E) sexual partners. 
A) observable characteristics. 
B) shape. 
C) cell wall structure. 
D) metabolism. 
E) sexual partners.

Question 20

RNA viruses can use their RNA to produce DNA because they carry __________ enzymes.

Accepted Answer

A) reverse transcriptase 
B) restriction 
C) endonuclease 
D) polymerase 
E) ligase 
A) reverse transcriptase 
B) restriction 
C) endonuclease 
D) polymerase 
E) ligase

Exam 21: Viruses and Prokaryotes

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

In what way does prokaryotic fission resemble eukaryotic mitosis?

Who proposed the theory that prions infected humans following an outbreak of BSE in cattle?

Which of the following is false?

The name "virus" is appropriate because it is derived from Latin meaning

The geographic area on the continent of Africa that is hardest hit by AIDS is

Endospores can resist

Which of the following is NOT caused by one of the herpes viruses?

Which of the following is NOT true about cyanobacteria?

The methanogenic archaeans are __________ that pull electrons from __________.

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

Which of the following is NOT a characteristic of viruses?

Retroviruses are characterized by

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

The methanogenic archaeans are __________.

All of the following are true of Gram-positive bacteria EXCEPT

All of the following are located on the exterior surface of a prokaryote EXCEPT

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

Traditionally, an unknown bacterium is classified based on all the following EXCEPT

RNA viruses can use their RNA to produce DNA because they carry __________ enzymes.

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

The methanogenic archaeans are that pull electrons from .