35. Which urea cycle intermediate is transported from mitochondria to cytosol? (A) Citrulline (B) Arginine (C) Ornithine (D) Argininosuccinate

42. At the molecular level, insulin signaling is initiated primarily through activation of which mechanism? (A) G‑protein–coupled receptor signaling (B) Ligand‑gated ion channel opening (C) Receptor tyrosine kinase autophosphorylation (D) Nuclear hormone receptor binding