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Microbiology Review Q&A
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Microbiology Review Q&A
Microbiology Review Q&A
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1
Question
How do microbes influence our food cravings according to the transcript?
Answer
They communicate with the brain to shape food preferences
2
Question
In an ophthalmology clinic, which application uses silver nitrate?
Answer
Preventing eye infections in newborns (preventing blindness)
3
Question
What is the germ theory?
Answer
Diseases can be caused by microorganisms
4
Question
True or False: Noncompetitive inhibitors bind only to free enzymes and not to enzyme-substrate complexes?
Answer
False; noncompetitive inhibitors can bind to enzyme-substrate complexes as well
5
Question
True or False: Water boils quicker at a lower temperature at a higher elevation?
Answer
False; water boils at a lower temperature at higher elevations, but takes longer to reach boiling under reduced pressure while boiling point is lower
6
Question
The bases of the two DNA strands are connected in the middle by what type of bonds?
Answer
Hydrogen bonds
7
Question
A bacterial capsule is a type of what structure?
Answer
Glycocalyx (slime layer)
8
Question
Which process involves removing a water molecule to bond two monomers?
Answer
Dehydration synthesis
9
Question
What is the function of a competitive inhibitor in enzyme kinetics?
Answer
Outcompetes substrate for active site, reducing catalysis
10
Question
Liver cells have a larger ______, since their function is to help detoxify the body
Answer
Smooth endoplasmic reticulum
11
Question
Which organism is most likely to grow at pH 10.5 in an industrial waste site?
Answer
Alkalinophiles
12
Question
What are the proper steps of the scientific method in order from Observation onward?
Answer
Observation, Question, Hypothesis, Experiment, Results, Conclusion
13
Question
How does an enzyme speed up a reaction?
Answer
Lowers activation energy
14
Question
How do microbes influence our food cravings according to the transcript?
Answer
They communicate with the brain to shape food preferences
15
Question
Which application in an ophthalmology clinic utilizes silver nitrate?
Answer
Preventing eye infections in newborns (prevents blindness)
16
Question
What is the germ theory?
Answer
Diseases can be caused by microorganisms
17
Question
True or False: Noncompetitive inhibitors only bind to free enzymes, and cannot bind to enzymes that are already bound to substrates
Answer
False
18
Question
True or False: Water boils quicker at a lower temperature at a higher elevation
Answer
False; water boils at lower temperature but at higher elevation due to reduced atmospheric pressure
19
Question
The bases of the two DNA chains are linked in the middle of the molecules by what type of bonds?
Answer
Hydrogen bonds
20
Question
A bacterial capsule is a type of which structure?
Answer
Glycocalyx (outer layer)
21
Question
Which process involves removing a water molecule to form a bond between two monomers?
Answer
Dehydration synthesis
22
Question
Which of the following can utilize oxygen to survive? (Select all that apply)
Answer
Facultative anaerobes; Aerobes; Microaerophiles; (not strictly anaerobes)
23
Question
What is the spontaneous movement from high to low concentration called?
Answer
Diffusion
24
Question
Match the inhibitors with their analogies: Competitive inhibitor analogy?
Answer
Competitive inhibitor: stealing a parking spot; Noncompetitive inhibitor: toll meter blocking
25
Question
What is the common evolutionary bias that affects our perception?
Answer
Cognitive bias leading to misinterpretation due to emotions
26
Question
True or False: The outcome of any scientific investigation proves the premise of the question
Answer
False
27
Question
The scientific method cannot be applied to which observation?
Answer
Drinking water expels inner demons (nonsensical observation)
28
Question
Water mostly crosses the cell membrane through protein channels called what, correctly termed?
Answer
Facilitated diffusion (aquaporins)
29
Question
You observe a microorganism producing a sticky substance that helps it attach to surfaces and form communities with other bacteria. What process is this?
Answer
Biofilm formation
30
Question
Eduard Buchner's fermentation discovery led to which conclusion?
Answer
Enzymes can cause fermentation without living cells (cell-free fermentation)