1. Which of the following is a function of the plasma membrane?

A) It regulates the entry and exit of materials in and out of the cell.

B) It synthesizes proteins for the cell.

C) It stores the genetic information of the cell.

D) It converts glucose into ATP for the cell.

Answer: A

Rationale: The plasma membrane is a selectively permeable membrane

that controls what substances can cross it. It does not perform any of

the other functions listed.

2. Which of the following is a difference between prokaryotic and

eukaryotic cells?

A) Prokaryotic cells have a nucleus, while eukaryotic cells do not.

B) Prokaryotic cells have ribosomes, while eukaryotic cells do not.

C) Prokaryotic cells have cell walls, while eukaryotic cells do not.

D) Prokaryotic cells lack membrane-bound organelles, while

eukaryotic cells have them.

Answer: D

Rationale: Prokaryotic cells are simpler than eukaryotic cells and do

not have any organelles that are enclosed by membranes, such as the