Identify the main component of cell membranes.

ATI RN

ATI RN Test Bank

A. cholesterol B. fatty acids C. phospholipids D. polysaccharides

Correct Answer: C

Rationale: Phospholipids form the bilayer structure of cell membranes.

Which of the following is NOT a characteristic of epithelial tissue?

A. binds and supports body parts B. has cells that readily divide C. has a basement membrane and a free surface D. has tightly packed cells

Correct Answer: A

Rationale: Binding and support are connective tissue traits; epithelium has tightly packed, dividing cells on a basement membrane.

Identify the function of goblet cells.

A. Aid in absorption B. Move materials past cells C. Provides a waterproof barrier D. Secrete mucous

Correct Answer: D

Rationale: Goblet cells secrete mucus to protect and lubricate epithelial surfaces.

Identify the type of connective tissue found in the nose, the trachea, and the fetal skeleton.

A. Hyaline cartilage B. Elastic cartilage C. Dense connective tissue D. Fibrocartilage

Correct Answer: A

Rationale: Hyaline cartilage, smooth and glassy, is in the nose, trachea, and fetal skeleton.

Presence of striations, branching cells, intercalated discs and gap junctions describes muscle.

A. cardiac B. skeletal C. smooth D.

Correct Answer: A

Rationale: Cardiac muscle has striations, branches, intercalated discs, and gap junctions for coordination.

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