Portage Learning BIOD 171 Microbiology Module 3
UPDATED ACTUAL Exam Questions and CORRECT Answers
Question 1.
The study of microbes (microorganisms and viruses) and their biological processes
Correct Answer: Microbiology
Question 2.
What is the smallest biological unit of life
Correct Answer: A cell
Question 3.
Classified as a complex molecule that is composed from smaller subunits
Correct Answer: Macromolecule
Question 4.
What are the four main types of macromolecules?
Correct Answer: Proteins, carbohydrates, lipids and nucleic acids
Question 5.
What various functions do proteins have in a cell?
Correct Answer: Proteins may facilitate the movement of materials in or out of
a cell. Some can act as enzymes that catalyze, or speed up, biochemical
processes. Others play a structural role while other proteins, such as
filaments, enable movement.
Question 6.
what re the two major types of nucleic acids and their roles?
Correct Answer: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic acids are chemical molecules that carry genetic information within the
cell. 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.
• Serves the cell as a surrounding barrier that separates the inside of the cell
from the outside surrounding environment. The plasma membrane also
restricts the movement of materials (water, nutrients, etc) either in or out of
the cell, thus allowing a cells to absorb and keep what is needed (influx) while
also preventing the escape (out flux) of lipids (hydrophobic hydrocarbons)
, -✓✓Plasma membrane and what it is made up of
Question 7.
carbon, hydrogen and oxygen atoms. Examples would include, C6H10O5 (glucose)
C12H22O11 (surcose) and C6H10O5 (cellulose)
Correct Answer: The three main components of carbohydrates
Question 8.
Contain a nucleus, a membrane enclosed region within the cell that contains the genetic
material.
Correct Answer: Eukaryotic cells
Question 9.
Cells do not contain a nucleus and can be further classified as either Bacteria and
Archaea
Correct Answer: Prokaryotic cells
Question 10.
Coccus (round/spherical), bacillus (rod), Vibrio (curved rod) or spirillum
(spiral/corkscrew)
Correct Answer: Main morphologies of bacteria
Question 11.
Which group of microbes is noted for its ability to survive under harsh conditions?
Correct Answer: Archaea. They are able to survive in extremely harsh
environmental conditions such as high salt levels, acid conditions, high
temperatures and oxygen-poor conditions
Question 12.
Animal, Plant, Fungi or Protista
Correct Answer: The four main classifications of Eukarya?
Question 13.
Can viruses be classified as either prokaryotic or eukaryotic
Correct Answer: No
• The lipid bilayer of the plasma membrane is composed of what? -✓✓The cell
membrane is a bilayer composed primarily of amphipathic phospholipids,
meaning they contain a polar hydrophilic (water loving) head group and a
UPDATED ACTUAL Exam Questions and CORRECT Answers
Question 1.
The study of microbes (microorganisms and viruses) and their biological processes
Correct Answer: Microbiology
Question 2.
What is the smallest biological unit of life
Correct Answer: A cell
Question 3.
Classified as a complex molecule that is composed from smaller subunits
Correct Answer: Macromolecule
Question 4.
What are the four main types of macromolecules?
Correct Answer: Proteins, carbohydrates, lipids and nucleic acids
Question 5.
What various functions do proteins have in a cell?
Correct Answer: Proteins may facilitate the movement of materials in or out of
a cell. Some can act as enzymes that catalyze, or speed up, biochemical
processes. Others play a structural role while other proteins, such as
filaments, enable movement.
Question 6.
what re the two major types of nucleic acids and their roles?
Correct Answer: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic acids are chemical molecules that carry genetic information within the
cell. 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.
• Serves the cell as a surrounding barrier that separates the inside of the cell
from the outside surrounding environment. The plasma membrane also
restricts the movement of materials (water, nutrients, etc) either in or out of
the cell, thus allowing a cells to absorb and keep what is needed (influx) while
also preventing the escape (out flux) of lipids (hydrophobic hydrocarbons)
, -✓✓Plasma membrane and what it is made up of
Question 7.
carbon, hydrogen and oxygen atoms. Examples would include, C6H10O5 (glucose)
C12H22O11 (surcose) and C6H10O5 (cellulose)
Correct Answer: The three main components of carbohydrates
Question 8.
Contain a nucleus, a membrane enclosed region within the cell that contains the genetic
material.
Correct Answer: Eukaryotic cells
Question 9.
Cells do not contain a nucleus and can be further classified as either Bacteria and
Archaea
Correct Answer: Prokaryotic cells
Question 10.
Coccus (round/spherical), bacillus (rod), Vibrio (curved rod) or spirillum
(spiral/corkscrew)
Correct Answer: Main morphologies of bacteria
Question 11.
Which group of microbes is noted for its ability to survive under harsh conditions?
Correct Answer: Archaea. They are able to survive in extremely harsh
environmental conditions such as high salt levels, acid conditions, high
temperatures and oxygen-poor conditions
Question 12.
Animal, Plant, Fungi or Protista
Correct Answer: The four main classifications of Eukarya?
Question 13.
Can viruses be classified as either prokaryotic or eukaryotic
Correct Answer: No
• The lipid bilayer of the plasma membrane is composed of what? -✓✓The cell
membrane is a bilayer composed primarily of amphipathic phospholipids,
meaning they contain a polar hydrophilic (water loving) head group and a
