Sample Exam Lecture 2

0.0(0)
Studied by 0 people
call kaiCall Kai
Locked
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/26

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 5:29 AM on 7/13/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai
Chat

No analytics yet

Send a link to your students to track their progress

27 Terms

1
New cards
What spectrum of bacteria is neomycin effective against?
Both Gram-positive and Gram-negative bacteria.
2
New cards
What is the final electron acceptor in anaerobic respiration?
An inorganic molecule other than O₂.
3
New cards
What is the final electron acceptor in aerobic respiration?
Oxygen (O₂).
4
New cards
What is the final electron acceptor in fermentation?
An organic molecule.
5
New cards
Which antimicrobial drug is anti-mycobacterial?
Rifampin.
6
New cards
Which metabolic pathway converts pyruvic acid to acetyl-CoA?
The intermediate step (link reaction).
7
New cards
Which substance is a noncompetitive inhibitor of enzymes?
Cyanide.
8
New cards
Which group of bacteria requires reduced oxygen levels?
Microaerophiles.
9
New cards
Which drug is antiviral?
Amantadine.
10
New cards
Which drug is used to treat helminth infections?
Niclosamide.
11
New cards
When sucrose is metabolized in a medium, what happens to the pH?
The pH decreases (drops).
12
New cards
True or False: ATP is generated during catabolic pathways and used during anabolic pathways.
True.
13
New cards
How do salt and sugar preserve food?
They create a hypertonic environment.
14
New cards
Most fungi grow best at what pH?
pH 5 (slightly acidic).
15
New cards
True or False: Bacteriostatic agents kill bacteria.
False. They inhibit bacterial growth but do not kill bacteria.
16
New cards
What is the difference between bactericidal and bacteriostatic drugs?
Bactericidal drugs kill bacteria; bacteriostatic drugs inhibit bacterial growth.
17
New cards
What is the link reaction?
The conversion of pyruvate to acetyl-CoA before the Krebs cycle.
18
New cards
Why do microaerophiles require reduced oxygen?
High oxygen concentrations are toxic to them.
19
New cards
Name one antiviral drug from the sample exam.
Amantadine.
20
New cards
Name one antihelminthic drug from the sample exam.
Niclosamide.
21
New cards
Name one antimycobacterial drug from the sample exam.
Rifampin.
22
New cards
What happens to pH when bacteria ferment sugars?
The pH decreases because acids are produced.
23
New cards
What type of environment causes water to leave microbial cells?
A hypertonic environment.
24
New cards
Why are sugars and salts effective preservatives?
They remove water from microbial cells by osmosis.
25
New cards
What is the relationship between catabolism and ATP?
Catabolism releases energy to produce ATP.
26
New cards
What is the relationship between anabolism and ATP?
Anabolism requires ATP to build complex molecules.
27
New cards
What is the difference between aerobic respiration, anaerobic respiration, and fermentation?
Aerobic respiration uses O₂ as the final electron acceptor; anaerobic respiration uses another inorganic molecule; fermentation uses an organic molecule