Cell Membranes Are Semipermeable, Which Means That _____ Can Passively

question 105

Multiple Choice

Cell membranes are semipermeable, which means that _____ can passively move across the membrane

• A)sodium ions
• B)water
• C)potassium ions
• D)phosphorous ions

---

Definitions:

Smooth Muscle Fibers

Specialized muscle tissues that contract involuntarily, found in the walls of internal organs such as the stomach, intestines, and blood vessels.

Elastic Tissue

A type of connective tissue that allows many tissues in the body to resume their shape after stretching or contracting.

Thinner Walls

Structures, particularly in the context of blood vessels or chambers of the heart, having less thickness, which can impact their function and efficiency.

Vasodilation

The widening of blood vessels, which decreases blood pressure and increases blood flow to specific areas of the body.