
Exploring Microbiology Concepts
Quiz
•
Biology
•
University
•
Practice Problem
•
Easy
Pradhika Subramanian
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What are the main components of a bacterial cell wall?
Nucleus, mitochondria, chloroplasts
Peptidoglycan, teichoic acids, lipopolysaccharides
Capsule, flagella, pili
Cell membrane, ribosomes, cytoplasm
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Describe the function of the plasma membrane in bacteria.
The plasma membrane generates energy for the cell.
The plasma membrane regulates substance transport, maintains cell integrity, and facilitates communication.
The plasma membrane stores genetic material.
The plasma membrane acts as a rigid protective wall.
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the role of ribosomes in bacterial cells?
Ribosomes synthesize proteins by translating mRNA in bacterial cells.
Ribosomes store genetic material in bacterial cells.
Ribosomes are responsible for cell division in bacteria.
Ribosomes transport nutrients across the bacterial membrane.
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
How do Gram-positive and Gram-negative bacteria differ in cell structure?
Both Gram-positive and Gram-negative bacteria have thick peptidoglycan layers.
Gram-positive bacteria have a thick peptidoglycan layer, while Gram-negative bacteria have a thin peptidoglycan layer and an outer membrane.
Gram-negative bacteria have a thick peptidoglycan layer and no outer membrane.
Gram-positive bacteria have an outer membrane, while Gram-negative bacteria lack it.
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What are the common mechanisms of antibiotic resistance in bacteria?
Increased nutrient absorption
Enhanced DNA replication
Cell wall thickening
Common mechanisms of antibiotic resistance in bacteria include enzymatic degradation, target modification, reduced permeability, and active efflux.
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Explain how beta-lactamase contributes to antibiotic resistance.
Beta-lactamase prevents the absorption of antibiotics in the body.
Beta-lactamase enhances the effectiveness of beta-lactam antibiotics.
Beta-lactamase is a type of antibiotic that kills bacteria.
Beta-lactamase contributes to antibiotic resistance by breaking down beta-lactam antibiotics, rendering them ineffective.
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the significance of plasmids in antibiotic resistance?
Plasmids are responsible for nutrient absorption in bacteria.
Plasmids facilitate the spread of antibiotic resistance genes among bacteria.
Plasmids have no role in gene transfer.
Plasmids are only found in eukaryotic cells.
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