15. How many NAD+ are reduced in the degradation of palmitoyl~CoA to form eight molecules of acetyl~CoA?(A)1(B)7(C)8(D)14

6. Which one of the following statements is true about catabolic pathways?(A)They combine molecules into more complex and energy-rich molecules.(B)They belong to the reduction reaction.(C)They are usually coupled with anabolic pathways and generate energy in the form of ATP.(D)They do not need enzyme catalysts.