Bacteria: Cell Structure

What is the outermost layer of a bacterial cell called?

• nucleus

• plasmid

• cytoplasm

• plasma membrane

Which structure in a bacterial cell is responsible for locomotion?

• cell wall

• flagella

• ribosomes

• nucleus

What is the function of the cell wall in a bacterial cell?

• Structural support and protection

• DNA replication

• Cellular communication

• Energy production

Which organelle in a bacterial cell is responsible for protein synthesis?

• endoplasmic reticulum

• mitochondria

• nucleus

• ribosome

What is the function of the cytoplasm in a bacterial cell?

• The function of the cytoplasm in a bacterial cell is to house the cell's genetic material, enzymes, and other cellular components.

• The function of the cytoplasm in a bacterial cell is to transport nutrients into the cell.

• The function of the cytoplasm in a bacterial cell is to regulate the cell's metabolism.

• The function of the cytoplasm in a bacterial cell is to provide structural support to the cell.

Which structure in a bacterial cell contains the genetic material?

• ribosome

• cell membrane

• nucleoid

• nucleus

Which structure in a bacterial cell is responsible for storing excess nutrients?

• inclusions

• flagella

• ribosomes

• cell wall

Structures that allow bacterium to adhere to other cells or surfaces.

• flagella
• fimbriae

• capsules
• ribosomes

Which bacterial surface substance helps it avoid being engulfed by white blood cells and is not easily washed off?

What powers the bacterial flagella?

• ATP

• Solar energy
• Muscle contraction
• electrochemical gradient of ions