Which of the following about metabolism is correct________
A. Transfer RNAs, antibodies, enzymes, and carrier proteins all have specificity when they function
B. Substances that carry Mg 2+ into the chloroplast can also catalyze the reduction of C 3
C. Since the digestive tract is directly connected to the outside world, the digestion of food is not part of human metabolism
D. The basic type of metabolism of callus formed by plant tissue culture is the same as that of yeast
Answer:A
Which of the following about metabolism is correct________
A. Transfer RNAs, antibodies, enzymes, and carrier proteins all have specificity when they function B. Substances that carry Mg 2+ into the chloroplast can also catalyze the reduction of C 3 C. Since the digestive tract is directly connected to the outside world, the digestion of food is not part of human metabolism D. The basic type of metabolism of callus formed by plant tissue culture is the same as that of yeast