Bacterial Cell Structure and Functions Quiz

What is the function of plasmids in bacteria?

• Provide structural support and shape

• Carry accessory genes that can be transferred between bacteria

• Enable bacterial motility

• Pump antibiotics out of bacterial cells

Which bacterial structure helps bacteria adhere to surfaces?

• Flagella

• Capsule

• Pili

• Cell wall

What is the role of pili in bacterial cells?

• Enable bacterial motility

• Involved in attachment and conjugation

• Provide structural support

• Pump antibiotics out of bacterial cells

Which structure enables bacterial motility?

• Ribosome

• Flagella

• Capsule

• Nucleoid

What is the difference between gram-positive and gram-negative bacteria?

• Gram-positive bacteria have a thin peptidoglycan layer, while gram-negative bacteria have a thick peptidoglycan layer.

• Gram-positive bacteria stain pink, while gram-negative bacteria stain purple.

• Gram-positive bacteria have a thick peptidoglycan layer, while gram-negative bacteria have a thin peptidoglycan layer and an outer membrane.

• Gram-positive bacteria have an outer membrane, while gram-negative bacteria do not.

Which mechanism involves pumping antibiotics out of bacterial cells?

• Transformation

• Conjugation

• Efflux pumps

• Genetic mutation

What is the primary function of antibiotics?

• To enable bacterial motility

• To synthesize proteins in bacterial cells

• To kill or inhibit the growth of bacteria

• To transfer DNA between bacteria

Which bacterial structure is involved in genetic material transfer?

• Ribosome

• Flagella

• Pili

• Capsule

Which bacterial structure is tail-like and enables motility?

• Ribosome

• Flagella

• Capsule

• Pili

What happens when antibiotics are stopped early during treatment?

• Resistance development is promoted.

• Bacteria are completely eradicated.

• Antibiotics become more effective.

• The immune system weakens.