Microbiology Module 1 Exam Questions and Answers-
Portage Learning
Question 1
True/False. A virus is classified as a microbe.
Correct!
Correct Answer
True!
—
Although viruses are not living and as such are not considered microorganisms, they can, however, be classified as
microbes, a more general term that includes microorganisms and viruses.
Question 2
True or False: The smallest biological unit of life is the molecule.
Correct Answer
False!
—
The smallest biological unit of life is the cell.
Page 1 of 7
, Question 3
At a generalized level, all cells are comprised of what?
Correct Answer
macromolecules (proteins, lipids, nucleic acids, and polysaccharides)
Question 4
Proteins are formed from various combinations of _________ of which there are _________ known forms.
Correct Answer
amino acids 20
Question 5
Define an essential amino acid.
Correct Answer
An essential amino acid cannot be produced by the human body and as such must be take in from the environment
through alternative sources (i.e) food.
Question 6
Where can the two major types of nucleic acids be found in the cell, and what are their roles?
Correct Answer
While both DNA and RNA can be found in the nucleus (center of the cell), only RNA is capable of leaving the nucleus.
DNA contains a vast amount of hereditary information and is responsible for the inheritable characteristics of living
organisms. RNA is responsible for deciphering the hereditary information in DNA and using it to synthesize proteins.
Page 2 of 7
Portage Learning
Question 1
True/False. A virus is classified as a microbe.
Correct!
Correct Answer
True!
—
Although viruses are not living and as such are not considered microorganisms, they can, however, be classified as
microbes, a more general term that includes microorganisms and viruses.
Question 2
True or False: The smallest biological unit of life is the molecule.
Correct Answer
False!
—
The smallest biological unit of life is the cell.
Page 1 of 7
, Question 3
At a generalized level, all cells are comprised of what?
Correct Answer
macromolecules (proteins, lipids, nucleic acids, and polysaccharides)
Question 4
Proteins are formed from various combinations of _________ of which there are _________ known forms.
Correct Answer
amino acids 20
Question 5
Define an essential amino acid.
Correct Answer
An essential amino acid cannot be produced by the human body and as such must be take in from the environment
through alternative sources (i.e) food.
Question 6
Where can the two major types of nucleic acids be found in the cell, and what are their roles?
Correct Answer
While both DNA and RNA can be found in the nucleus (center of the cell), only RNA is capable of leaving the nucleus.
DNA contains a vast amount of hereditary information and is responsible for the inheritable characteristics of living
organisms. RNA is responsible for deciphering the hereditary information in DNA and using it to synthesize proteins.
Page 2 of 7
