Question 1

The three major bioenergy products of microorganisms are________ , _________, and________.

Accepted Answer

biodiesel / methane / ethanol (any order)

Question 2

Basic microbiology can be used to

Accepted Answer

A)   study characteristics of cells of multicellular organisms.
B)   probe the fundamental processes of life.
C)   model our understanding of cellular processes in multicellular organisms, including humans.
D)   do all of the above. D

Question 3

The text states that antibiotics are derived from microorganisms. What is the benefit to an antibiotic- producing microorganism of producing an antibiotic in its natural habitat?

Accepted Answer

Answers will vary, but it must first be stated the antibiotic- producing microbe would need to be resistant to the antibiotic. This should then follow into a discussion on how antibiotic production could be viewed as a way to persist in the environment, such as maintaining dominance in a community over others.

Question 4

Mycobacterium tuberculosis is very difficult to stain because of the

Accepted Answer

A)   presence of ribosomes in the cytoplasm.
B)   large amounts of a waxy lipid present in its cell wall.
C)   location of the DNA within the cell.
D)   lack of a cell wall.

Question 5

Chemolithotrophy involves

Accepted Answer

A)   metabolic autotrophy.
B)   oxidation of inorganic compounds.
C)   oxidation of organic compounds.
D)   reduction of organic compounds.

Question 6

Martinus Beijerinck was the first to isolate

Accepted Answer

A)   certain nitrogen- fixing root nodule bacteria.
B)   green algae.
C)   certain sulfate- reducing bacteria.
D)   all of the above.

Question 7

DNA sequencing to study organisms' entire nucleotide sequences initially brought about the field of________ , which has itself spawned the subdisciplines of _________ and ________that represent more functional- based approaches.

Accepted Answer

The answer of DNA sequencing to study organisms' entire nucleotide...

Question 8

A pure culture

Accepted Answer

A)   is a population of identical cells.
B)   was cultured for a certified stock culture.
C)   is sterile.
D)   is made of a clearly defined chemical medium.

Question 9

Microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of

Accepted Answer

A)   sulfur.
B)   carbon.
C)   carbon, nitrogen, and sulfur.
D)   nitrogen.

Question 10

The discipline of microbiology is intimately associated with biochemistry and genetics, because cells are both biochemical catalysts and genetic coding devices.

Accepted Answer

A) True 
 B)False

Question 11

Cyanobacteria and purple bacteria both obtain energy from light, however only the________are capable of releasing ________.

Accepted Answer

The answer of Cyanobacteria and purple bacteria both obtain energy...

Question 12

The disease anthrax is caused by the pathogenic bacterium , which produces heat- resistant structures known as________ .

Accepted Answer

The answer of The disease anthrax is caused by the...

Question 13

Microbial control in wastewaters would most logically be a part of

Accepted Answer

A)   microbial technology.
B)   bacterial energetics.
C)   aquatic microbiology.
D)   microbial genetics.

Question 14

Groups of cells derived from a single parent cell by successive cell divisions are known as________and which live in environments known as________ .

Accepted Answer

The answer of Groups of cells derived from a single...

Question 15

In what/which domain(s) of life is/are microorganisms represented?

Accepted Answer

A)   Bacteria
B)   Eukarya
C)   Archaea
D)   all of the above

Question 16

Without microorganisms, all higher life forms on Earth would cease to exist.

Accepted Answer

A) True 
 B)False

Question 17

A Pasteur flask has a(n)

Accepted Answer

A)   secondary opening at the base to allow for drainage.
B)   swan neck to prevent particulate matter from getting into the main body of the flask.
C)   double neck so two substances may be added at the same time.
D)   inverted upper edge to prevent spillage while swirling.

Question 18

Robert Koch received the 1905 Nobel Prize for Physiology or Medicine for ________.

Accepted Answer

The answer of Robert Koch received the 1905 Nobel Prize...

Question 19

Louis Pasteur developed the vaccine(s) for

Accepted Answer

A)   anthrax.
B)   rabies.
C)   fowl cholera.
D)   all of the above.

Question 20

________produced by microbial fermentation of glucose from sugarcane or cornstarch is becoming a more important component of biofuels in the United States, and ________microbiologists are needed to make this a commercially available product.

Accepted Answer

The answer of ________produced by microbial fermentation of glucose from...

Exam 1: Microorganisms and Microbiology

The three major bioenergy products of microorganisms are____ , _, and____.