ATI RN
Chapter 3 Cells and Tissues Review Questions Answers Questions
Question 1 of 5
The plasma membrane serves to:
Correct Answer: D
Rationale: The plasma membrane encloses, regulates transport, and shapes the cell.
Question 2 of 5
Classification of epithelia is based on the number of layers of cells and on the:
Correct Answer: A
Rationale: Epithelia are classified by layers (simple/stratified) and cell shape (squamous, cuboidal, columnar).
Question 3 of 5
The function of dense, regularly arranged, connective tissue is:
Correct Answer: B
Rationale: Dense regular connective tissue (e.g., tendons) provides strong binding and support.
Question 4 of 5
Because the proteins embedded in the phospholipid bilayer of the plasma membrane can change their positions by moving laterally, this model of the plasma membrane structure is called the model.
Correct Answer: D
Rationale: The fluid-mosaic model describes the dynamic, fluid nature of the phospholipid bilayer with mobile proteins.
Question 5 of 5
The function of the rough endoplasmic reticulum is and the function of the smooth endoplasmic reticulum is
Correct Answer: C
Rationale: Rough ER modifies proteins; smooth ER synthesizes phospholipids and steroids.