7. Which of the following is a nitrogen compound important in energy storage in muscle? (A) porphyrin (B) glutamine (C) creatine (D) purine

5. Which one of the following statements is correct? (A) Fatty acid biosynthesis is a mitochondria function. (B) Fatty acid biosynthesis requires FADH2 as a cofactor. (C) Fatty acid biosynthesis requires NADH as a cofactor. (D) Fatty acid biosynthesis requires NADPH as a cofactor.