Endoplasmic reticulum with attached ribosomes is called:

Correct Answer: D

Rationale: Rough ER has ribosomes for protein synthesis; smooth ER lacks them.

Correct Answer: D

Rationale: Sebaceous glands are holocrine, releasing entire cells with secretion; others are merocrine.

Correct Answer: A

Rationale: Intercalated discs are unique to cardiac muscle, aiding synchronized contractions.

Correct Answer: C

Rationale: In a non-dividing cell, DNA is in a diffuse, thread-like form called chromatin.

Correct Answer: C

Rationale: Facilitated diffusion is passive, requiring no energy, unlike the active processes listed.