Microbiology/ BIOD 171 Module 1 Problem Set
Question 1
0 / 0 pts
Microbiology is the study of what?
Microbiology is the study of microbes (microorganisms and viruses) and their
biological processes.
Question 2
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Microbiology/ BIOD 171 Module 1 Problem Set
Question 1
0 / 0 pts
Microbiology is the study of what?
Microbiology is the study of microbes (microorganisms and viruses) and their
biological processes.
Question 2
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What is the smallest biological unit of life?
A cell
Question 3
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What is a macromolecule?
A macromolecule is classified as a complex molecule that is composed from
smaller subunits.
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Question 4
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What are the four main types of macromolecules?
Proteins, nucleic acids, lipids and carbohydrates
Question 5
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What various functions do proteins have in a cell?
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
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What are the two major types of nucleic acids and their roles?
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There are two major types of nucleic acids: 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.
Question 7
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What is the plasma membrane, and what is it made up of?
The plasma membrane 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 essential nutrients. The
plasma membrane is composed of lipids (hydrophobic hydrocarbons).
Question 8
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What are the three main components of carbohydrates?
Carbohydrates are composed of carbon, hydrogen and oxygen atoms.
Examples would include, C6H12O6 (glucose) C12H22O11 (sucrose) and
C6H10O5 (cellulose).
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