Challenge Your Exam Readiness With Our Free ATI TEAS Practice Questions

The Golgi apparatus receives proteins and lipids from the rough ER, then modifies (e.g., glycosylation), sorts, and packages them into vesicles for delivery to the plasma membrane, lysosomes, or secretion—making B correct. Ribosomes (A) perform protein synthesis, not packaging; secretory proteins begin translation in the cytosol and are routed to the rough ER via signal peptides, then pass to the Golgi. Lysosomes (C) contain hydrolytic enzymes for intracellular digestion and recycling; ATP production occurs primarily in mitochondria through the citric acid cycle and electron transport chain. The smooth ER (D) synthesizes lipids (steroids, phospholipids), detoxifies drugs, and stores Ca²⁺ (especially in muscle as sarcoplasmic reticulum); DNA transcription occurs in the nucleus. TEAS commonly tests these pairings because they underpin secretory pathways: RER → Golgi → vesicles → exocytosis. Misattributing energy production to lysosomes or transcription to ER reflects common distractors—always map location to process: nucleus (genes/transcription), cytosolic ribosomes (cytosolic proteins), RER (secreted/membrane proteins), Golgi (post-translational processing/trafficking), mitochondria (ATP).