Question 1

Which type of metabolism is unique to prokaryotes?

Accepted Answer

A) chemoheterotroph 
B) photoheterotroph 
C) photolithotroph 
D) photoautotroph 
A) chemoheterotroph 
B) photoheterotroph 
C) photolithotroph 
D) photoautotroph

Question 2

Which of the following is likely the oldest known lineage in the Archaea?

Accepted Answer

A) Crenarchaeota 
B) Nanoarchaeota 
C) Korarchaeota 
D) Euryarchaeota 
A) Crenarchaeota 
B) Nanoarchaeota 
C) Korarchaeota 
D) Euryarchaeota

Question 3

Why is the process of nitrogen fixation by prokaryotes essential?

Accepted Answer

A) It converts atmospheric nitrogen to a nontoxic form. 
B) It allows for the breakdown of complex macromolecules. 
C) It removes nitrogen from the soil. 
D) It provides nitrogen sources for plants and animals. 
A) It converts atmospheric nitrogen to a nontoxic form. 
B) It allows for the breakdown of complex macromolecules. 
C) It removes nitrogen from the soil. 
D) It provides nitrogen sources for plants and animals.

Question 4

What are believed to be the evolutionary ancestors of mitochondria?

Accepted Answer

A) ancient Archaea 
B) ancient proteobacteria 
C) ancient green bacteria 
D) ancient cyanobacteria 
A) ancient Archaea 
B) ancient proteobacteria 
C) ancient green bacteria 
D) ancient cyanobacteria

Question 5

How long does it take for a biofilm to form?
a.seconds to minutes
b.minutes to hours
c.days to months
d.months to years

Accepted Answer

The answer of How long does it take for a...

Question 6

Which type of bacteria has the smallest type of cell?

Accepted Answer

A) mycoplasmas 
B) Lactobacillus 
C) Clostridium 
D) Staphylococcus 
A) mycoplasmas 
B) Lactobacillus 
C) Clostridium 
D) Staphylococcus

Question 7

Which organisms obtain energy from sunlight?

Accepted Answer

A) chemotrophs 
B) phototrophs 
C) autotrophs 
D) heterotrophs 
A) chemotrophs 
B) phototrophs 
C) autotrophs 
D) heterotrophs

Question 8

Match each prokaryotic genus with its correct description.
-Treponema

Accepted Answer

A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness) 
A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness)

Question 9

Match each prokaryotic genus with its correct description.
-methanogen

Accepted Answer

A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness) 
A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness)

Question 10

-In the figure of a bacterial cell, which number identifies the structure that carries supplemental genetic information?

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 5 
A) 1 
B) 2 
C) 4 
D) 5

Question 11

Which of the following is the function of bacteria found in human guts?

Accepted Answer

A) to synthesize vitamin A 
B) to synthesize vitamin C 
C) to synthesize vitamin K 
D) to synthesize vitamin B 
A) to synthesize vitamin A 
B) to synthesize vitamin C 
C) to synthesize vitamin K 
D) to synthesize vitamin B

Question 12

Which genus contains Gram-positive bacteria?

Accepted Answer

A) Neisseria 
B) Staphylococcus 
C) Kokuria 
D) Salmonella 
A) Neisseria 
B) Staphylococcus 
C) Kokuria 
D) Salmonella

Question 13

Match each prokaryotic genus with its correct description.
-Salmonella

Accepted Answer

A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness) 
A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness)

Question 14

Extracellular polymer substance (EPS) is a slimy, gluelike substance produced by bacteria to facilitate the formation of endospores.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following produce N-formylmethionine as their first amino acid in protein synthesis?

Accepted Answer

A) Mercaria 
B) Archaea 
C) Bacteria 
D) Eukarya 
A) Mercaria 
B) Archaea 
C) Bacteria 
D) Eukarya

Question 16

Which phrase describes a bacterial flagellum?

Accepted Answer

A) It is the same in composition as archaeal flagellum. 
B) It is made of rigid helical proteins, 
C) It enables bacteria to adhere to a surface. 
D) It enables bacteria to move along a surface. 
A) It is the same in composition as archaeal flagellum. 
B) It is made of rigid helical proteins, 
C) It enables bacteria to adhere to a surface. 
D) It enables bacteria to move along a surface.

Question 17

What was the basis on which prokaryotes were split into two domains?

Accepted Answer

A) according to differences in cell membrane properties 
B) according to differences in cell wall composition 
C) according to differences in staining characteristics 
D) according to differences in rRNA sequences 
A) according to differences in cell membrane properties 
B) according to differences in cell wall composition 
C) according to differences in staining characteristics 
D) according to differences in rRNA sequences

Question 18

In which major taxonomic group of Archaea are the methanogens found?

Accepted Answer

A) Crenarchaeota 
B) Korarchaeota 
C) Nanoarchaeota 
D) Euryarchaeota 
A) Crenarchaeota 
B) Korarchaeota 
C) Nanoarchaeota 
D) Euryarchaeota

Question 19

Match each prokaryotic genus with its correct description.
-Bacillus

Accepted Answer

A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness) 
A) causes anthrax 
B) fixes nitrogen 
C) causes syphilis 
D) loves very high temperatures 
E) causes endotoxin shock
F)helps in the production of yogurt
G)causes necrotizing fasciitis (flesh-eating disease)
H)loves toxic H2S gas
I)causes gonorrhea
J)produces CH4
K)causes trachoma (a preventable form of blindness)

Question 20

Snottites are biofilms found in deep caves that are filled with toxic H2S gas, and are formed by archaea.

Accepted Answer

A) True 
 B)False

Exam 22: Bacteria and Archaea

Which type of metabolism is unique to prokaryotes?

Which of the following is likely the oldest known lineage in the Archaea?

Why is the process of nitrogen fixation by prokaryotes essential?

What are believed to be the evolutionary ancestors of mitochondria?

How long does it take for a biofilm to form? a.seconds to minutes b.minutes to hours c.days to months d.months to years

Which type of bacteria has the smallest type of cell?

Which organisms obtain energy from sunlight?

Match each prokaryotic genus with its correct description. -Treponema

Match each prokaryotic genus with its correct description. -methanogen

-In the figure of a bacterial cell, which number identifies the structure that carries supplemental genetic information?

Which of the following is the function of bacteria found in human guts?

Which genus contains Gram-positive bacteria?

Match each prokaryotic genus with its correct description. -Salmonella

Extracellular polymer substance (EPS) is a slimy, gluelike substance produced by bacteria to facilitate the formation of endospores.

Which of the following produce N-formylmethionine as their first amino acid in protein synthesis?

Which phrase describes a bacterial flagellum?

What was the basis on which prokaryotes were split into two domains?

In which major taxonomic group of Archaea are the methanogens found?

Match each prokaryotic genus with its correct description. -Bacillus

Snottites are biofilms found in deep caves that are filled with toxic H2S gas, and are formed by archaea.

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

Filters

Snottites are biofilms found in deep caves that are filled with toxic H₂S gas, and are formed by archaea.