Which statement is TRUE?
A) Coenzymes and prosthetic groups both bind tightly to their respective enzymes.
B) Prosthetic groups bind tightly to their respective enzymes.
C) Coenzymes bind tightly to their respective enzymes.
D) Coenzymes and prosthetic groups are technically not bound to their respective enzymes. E) None of the above
Answer: B) Prosthetic groups bind tightly to their respective enzymes.
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At the start of mitosis, how many centromeres are present in a human cell?
A. 12 B. 23 C. 46 D. 92
Humans may contact psittacosis by
A. handling infected birds. B. handling infected birds and the dried excreta of birds. C. consuming undercooked chicken. D. inhaling excreta of dried birds.
If 8 molecules of NADH from the citric acid cycle entered the ETS, how much ATP would be produced?
A) 32 ATP B) 24 ATP C) 8 ATP D) 36 ATP E) 3 ATP
The likelihood of a nuclear attack on the United States is:
A) remote because other nations do not have the ability to deliver a nuclear weapon via missile or bomb. B) probable because the whereabouts of many small nuclear devices from the former Soviet Union is unknown. C) high because many other nations have developed nuclear weapons and are able to deliver them via a missile. D) impossible because no other nations have the resources or funding to build an effective nuclear weapon.