Which of the following occurs during stage 2 of metabolism?
1.Bulk food is digested in the stomach and small intestine.
2.Acetyl-CoA is oxidized in the citric acid cycle.
3.Fatty acids, monosaccharides, and amino acids are degraded in the cells to yield acetyl-CoA.
4.Energy released in the citric acid cycle is used by the electron transport chain.
5.ATP is used to fuel energetic processes.
Question 2
Why was the discovery of Taq polymerase the key to polymerase chain reaction?
1.Taq polymerase is a faster DNA polymerase than that found in mammals.
2.Taq polymerase has a lower error rate than other DNA polymerases.
3.Taq polymerase needs no primer.
4.Taq polymerase does not denature at temperatures of over 90 C, allowing for automated replication.
5.All of these