Bio 205 Midterm Review Latest Update 2024-2025
Actual Exam from Credible Source with 100
Questions and 100% Verified Correct Answers
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A mesophile is an example of an organism named for what type of growth requirement?
- CORRECT ANSWER: Physical
All atoms with the same number of protons that behave the same way are classified as
________. - CORRECT ANSWER: chemical elements
All of the following are lacking a cell wall except ________. - CORRECT ANSWER:
fungi
Archaea are often found in _____________. - CORRECT ANSWER: extreme
environments
Bacillus and coccus are terms used to describe what about bacteria? - CORRECT
ANSWER: Their shape
By which of the following mechanisms can a cell transport a substance from a lower to a
higher concentration? - CORRECT ANSWER: Active transport
Enzymes are proteins that have what main function? - CORRECT ANSWER: To lower
the activation energy
How does alcohol help control microbial growth? - CORRECT ANSWER: Lipid
dissolution and protein denaturation
Identify the large and diverse group of organic compounds that includes sugars and
starches. - CORRECT ANSWER: Carbohydrates
, If E.coli are rapidly dividing as fast as possible, which phase of growth are they in? -
CORRECT ANSWER: Log
If pasteurization does not achieve sterilization, why is food treated this way? -
CORRECT ANSWER: Pasteurization, using mild heat to eliminate bacteria that causes
food to spoil, is used to prolong the shelf life of food. The pathogens that survive the
pasteurization process don't usually make people sick or cause food to spoil.
If the same cells are experiencing a decline in total numbers because more are dying
than new cells being formed, which phase of growth is the organism in? - CORRECT
ANSWER: Death
If you have 500,000 cells to start and you do a 104 dilution (a step series of 1:10
dilutions) how many cells do you have? - CORRECT ANSWER: 50
In the name Escherichia coli, coli is the ________. - CORRECT ANSWER: specific
epithet
Many algae have cell walls composed of _____________. - CORRECT ANSWER:
cellulose
Membrane enclosed organelles. - CORRECT ANSWER: Eukaryotes
Multicellular animal parasite - CORRECT ANSWER: helminths
Name the cause of cell death resulting to damage to each of the following: a) cell wall b)
plasma membrane c) proteins d) nucleic acid - CORRECT ANSWER: a) cell wall: lysis
b) plasma membrane: chemicals damage to the lipids or proteins cause cellular
contents to leak into surrounding medium
c) proteins: heat denatures (changes the shape)
d) nucleic acid: heat, radiation, chemicals damage DNA/RNA preventing replication
Actual Exam from Credible Source with 100
Questions and 100% Verified Correct Answers
Guaranteed A+ Approved by Professor
A mesophile is an example of an organism named for what type of growth requirement?
- CORRECT ANSWER: Physical
All atoms with the same number of protons that behave the same way are classified as
________. - CORRECT ANSWER: chemical elements
All of the following are lacking a cell wall except ________. - CORRECT ANSWER:
fungi
Archaea are often found in _____________. - CORRECT ANSWER: extreme
environments
Bacillus and coccus are terms used to describe what about bacteria? - CORRECT
ANSWER: Their shape
By which of the following mechanisms can a cell transport a substance from a lower to a
higher concentration? - CORRECT ANSWER: Active transport
Enzymes are proteins that have what main function? - CORRECT ANSWER: To lower
the activation energy
How does alcohol help control microbial growth? - CORRECT ANSWER: Lipid
dissolution and protein denaturation
Identify the large and diverse group of organic compounds that includes sugars and
starches. - CORRECT ANSWER: Carbohydrates
, If E.coli are rapidly dividing as fast as possible, which phase of growth are they in? -
CORRECT ANSWER: Log
If pasteurization does not achieve sterilization, why is food treated this way? -
CORRECT ANSWER: Pasteurization, using mild heat to eliminate bacteria that causes
food to spoil, is used to prolong the shelf life of food. The pathogens that survive the
pasteurization process don't usually make people sick or cause food to spoil.
If the same cells are experiencing a decline in total numbers because more are dying
than new cells being formed, which phase of growth is the organism in? - CORRECT
ANSWER: Death
If you have 500,000 cells to start and you do a 104 dilution (a step series of 1:10
dilutions) how many cells do you have? - CORRECT ANSWER: 50
In the name Escherichia coli, coli is the ________. - CORRECT ANSWER: specific
epithet
Many algae have cell walls composed of _____________. - CORRECT ANSWER:
cellulose
Membrane enclosed organelles. - CORRECT ANSWER: Eukaryotes
Multicellular animal parasite - CORRECT ANSWER: helminths
Name the cause of cell death resulting to damage to each of the following: a) cell wall b)
plasma membrane c) proteins d) nucleic acid - CORRECT ANSWER: a) cell wall: lysis
b) plasma membrane: chemicals damage to the lipids or proteins cause cellular
contents to leak into surrounding medium
c) proteins: heat denatures (changes the shape)
d) nucleic acid: heat, radiation, chemicals damage DNA/RNA preventing replication
