What Junctions Allow the Passage of Small Molecules and Ions

question 29

Multiple Choice

What junctions allow the passage of small molecules and ions from the cytosol of one cell to that of a neighboring cell?

• A) gap junctions
• B) tight junctions
• C) basal lamina
• D) hemidesmosomes
• E) desmosomes

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Definitions:

Breast Tissue

The fibrous, glandular, and fatty tissue that makes up the breasts, essential for milk production and delivery in females.

Barium Enema

A diagnostic test that involves filling the colon with barium contrast material to make the lower gastrointestinal tract visible on an X-ray.

Breathe

To take air into the lungs and then expel it, a vital process for life and respiration.

Nose

A prominent facial feature responsible for the sense of smell and a pathway for breathing.