Question 1

Chemoautotrophic bacteria obtain their carbon from and their energy from .

Accepted Answer

A) CO2 ...sunlight 
B) CO2 ...reactions involving inorganic chemicals 
C) organic molecules ...sunlight 
D) methane ...sunlight 
A) CO2 ...sunlight 
B) CO2 ...reactions involving inorganic chemicals 
C) organic molecules ...sunlight 
D) methane ...sunlight

Question 2

A bacterium living in an underground septic tank thrives by absorbing organic compounds from decomposing wastes.What is it?

Accepted Answer

A) a chemoautotroph 
B) a photoheterotroph 
C) a chemoheterotroph 
D) a photoautotroph 
A) a chemoautotroph 
B) a photoheterotroph 
C) a chemoheterotroph 
D) a photoautotroph

Question 3

The main ingredient of oil is

Accepted Answer

A) algae 
B) diatoms 
C) bacteria 
D) dinoflagellates 
A) algae 
B) diatoms 
C) bacteria 
D) dinoflagellates

Question 4

are chromalveolates that commonly are found decomposing dead animals in freshwater habitats.

Accepted Answer

A) Plasmodial slime molds 
B) Water molds 
C) Cellular slime molds 
D) Brown algae 
A) Plasmodial slime molds 
B) Water molds 
C) Cellular slime molds 
D) Brown algae

Question 5

Plasmodial slime molds

Accepted Answer

A) are photoautotrophic. 
B) are primitive fungi. 
C) contain many nuclei in one mass of cytoplasm. 
D) are marine decomposers. 
A) are photoautotrophic. 
B) are primitive fungi. 
C) contain many nuclei in one mass of cytoplasm. 
D) are marine decomposers.

Question 6

Which of the following options correctly pairs a structure with its function in prokaryote cells?

Accepted Answer

A) endospore = food digestion vacuole 
B) capsule = rigid protective structure enclosing cell 
C) flagella = feeding appendages 
D) fimbriae = help prokaryotes stick to each other and to surfaces 
A) endospore = food digestion vacuole 
B) capsule = rigid protective structure enclosing cell 
C) flagella = feeding appendages 
D) fimbriae = help prokaryotes stick to each other and to surfaces

Question 7

Barry Marshall and his collaborators showed that

Accepted Answer

A) Helicobacter pylori bacteria are protective against peptic ulcers. 
B) Helicobacter pylori bacteria cause chronic gastritis and stomach ulcers. 
C) lab animals are easily infected by Helicobacter pylori. 
D) lifestyle factors such as stress,diet,and smoking cause chronic gastritis and stomach ulcers. 
A) Helicobacter pylori bacteria are protective against peptic ulcers. 
B) Helicobacter pylori bacteria cause chronic gastritis and stomach ulcers. 
C) lab animals are easily infected by Helicobacter pylori. 
D) lifestyle factors such as stress,diet,and smoking cause chronic gastritis and stomach ulcers.

Question 8

Intestinal gas is evidence of active _ in one's digestive tract.

Accepted Answer

A) halophiles 
B) thermophiles 
C) yeast cultures 
D) methanogens 
A) halophiles 
B) thermophiles 
C) yeast cultures 
D) methanogens

Question 9

The largest group of prokaryotes is the ,which obtain both energy and carbon from .

Accepted Answer

A) photoautotrophs ...light 
B) chemoheterotrophs ...organic molecules 
C) chemoautotrophs ...decaying organic material 
D) autotrophs ...inorganic molecules 
A) photoautotrophs ...light 
B) chemoheterotrophs ...organic molecules 
C) chemoautotrophs ...decaying organic material 
D) autotrophs ...inorganic molecules

Question 10

Which of the following organisms first introduced oxygen into Earth's atmosphere?

Accepted Answer

A) green algae 
B) cyanobacteria 
C) early protozoans 
D) plants 
A) green algae 
B) cyanobacteria 
C) early protozoans 
D) plants

Exam 16: Microbial Life: Prokaryotes and Protists

Chemoautotrophic bacteria obtain their carbon from and their energy from .

A bacterium living in an underground septic tank thrives by absorbing organic compounds from decomposing wastes.What is it?

The main ingredient of oil is

are chromalveolates that commonly are found decomposing dead animals in freshwater habitats.

Plasmodial slime molds

Which of the following options correctly pairs a structure with its function in prokaryote cells?

Barry Marshall and his collaborators showed that

Intestinal gas is evidence of active _ in one's digestive tract.

The largest group of prokaryotes is the ,which obtain both energy and carbon from .

Which of the following organisms first introduced oxygen into Earth's atmosphere?

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

A Tour of the Cell

The Working Cell

How Cells Harvest Chemical Energy

Photosynthesis: Using Light to Make Food

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

How Genes Are Controlled

Dna Technology and Genomics

How Populations Evolve

The Origin of Species

Tracing Evolutionary History

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Gas Exchange

Circulation

The Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Reproduction and Embryonic Development

Nervous Systems

The Senses

How Animals Move

Plant Structure,growth,and Reproduction

Plant Nutrition and Transport

Control Systems in Plants

The Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

Filters