BIOD 171 UPDATED ACTUAL Exam
Questions and CORRECT Answers
The study of microbes (microorganisms and viruses) and their biological processes - CORRECT
ANSWER - Microbiology
What is the smallest biological unit of life - CORRECT ANSWER - A cell
Classified as a complex molecule that is composed from smaller subunits - CORRECT
ANSWER - Macromolecule
What are the four main types of macromolecules? - CORRECT ANSWER - Proteins,
carbohydrates, lipids and nucleic acids
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.
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)
- CORRECT ANSWER - Plasma membrane and what it is made up of
, carbon, hydrogen and oxygen atoms. Examples would include, C6H10O5 (glucose) C12H22O11
(surcose) and C6H10O5 (cellulose) - CORRECT ANSWER - The three main components
of carbohydrates
Contain a nucleus, a membrane enclosed region within the cell that contains the genetic material.
- CORRECT ANSWER - Eukaryotic cells
Cells do not contain a nucleus and can be further classified as either Bacteria and Archaea -
CORRECT ANSWER - Prokaryotic cells
Coccus (round/spherical), bacillus (rod), Vibrio (curved rod) or spirillum (spiral/corkscrew) -
CORRECT ANSWER - Main morphologies of bacteria
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
Animal, Plant, Fungi or Protista - CORRECT ANSWER - The four main classifications of
Eukarya?
Can viruses be classified as either prokaryotic or eukaryotic - CORRECT ANSWER - No
The lipid bilayer of the plasma membrane is composed of what? - CORRECT ANSWER -
The cell membrane is a bilayer composed primarily of amphipathic phospholipids, meaning they
contain a polar hydrophilic (water loving) head group and a non-polar hydrophobic (water
fearing) tail region. The lipid bilayer is situated in such a way where the non-polar tail groups
face inward thus orienting the polar head groups to interact with water both outside and inside of
the cell
Ribosomes (protein synthesis), ER (site of protein synthesis), Golgi (protein modification and
distribution), lysosomes (waste disposal), mitochondria (ATP generation) and chloroplasts
(plants only; site of photosynthesis) - CORRECT ANSWER - Primary cellular organelles
Questions and CORRECT Answers
The study of microbes (microorganisms and viruses) and their biological processes - CORRECT
ANSWER - Microbiology
What is the smallest biological unit of life - CORRECT ANSWER - A cell
Classified as a complex molecule that is composed from smaller subunits - CORRECT
ANSWER - Macromolecule
What are the four main types of macromolecules? - CORRECT ANSWER - Proteins,
carbohydrates, lipids and nucleic acids
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.
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)
- CORRECT ANSWER - Plasma membrane and what it is made up of
, carbon, hydrogen and oxygen atoms. Examples would include, C6H10O5 (glucose) C12H22O11
(surcose) and C6H10O5 (cellulose) - CORRECT ANSWER - The three main components
of carbohydrates
Contain a nucleus, a membrane enclosed region within the cell that contains the genetic material.
- CORRECT ANSWER - Eukaryotic cells
Cells do not contain a nucleus and can be further classified as either Bacteria and Archaea -
CORRECT ANSWER - Prokaryotic cells
Coccus (round/spherical), bacillus (rod), Vibrio (curved rod) or spirillum (spiral/corkscrew) -
CORRECT ANSWER - Main morphologies of bacteria
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
Animal, Plant, Fungi or Protista - CORRECT ANSWER - The four main classifications of
Eukarya?
Can viruses be classified as either prokaryotic or eukaryotic - CORRECT ANSWER - No
The lipid bilayer of the plasma membrane is composed of what? - CORRECT ANSWER -
The cell membrane is a bilayer composed primarily of amphipathic phospholipids, meaning they
contain a polar hydrophilic (water loving) head group and a non-polar hydrophobic (water
fearing) tail region. The lipid bilayer is situated in such a way where the non-polar tail groups
face inward thus orienting the polar head groups to interact with water both outside and inside of
the cell
Ribosomes (protein synthesis), ER (site of protein synthesis), Golgi (protein modification and
distribution), lysosomes (waste disposal), mitochondria (ATP generation) and chloroplasts
(plants only; site of photosynthesis) - CORRECT ANSWER - Primary cellular organelles
