If an enzyme's optimal temperature is 37°C, then the enzyme ____
a. has a cofactor
b. is likely to catalyze the reaction at the same rate at 30°C
c. will probably be inactive at a pH below 4.5
d. will completely denature at 38°C
e. activity will drop at temperatures above 37°C and likely be eliminated by 60°C
ANSWER: e
You might also like to view...
According to the graph from Figure 18.11 which complex trait shows very little influence from a genetic component?
A. autism B. clinical depression C. schizophrenia D. male alcoholism E. female alcoholism
Which statement is true of Planaria?
a. They have a well-developed circulatory system. b. They have a mouth located in their anterior end. c. They expel wastes via the action of ciliated flame cells. d. They contain a primitive, ladder-like skeletal system.
The mature body form of the sporophyte of a typical ____ has fronds growing from a rhizome, with
sori on the lower surface or margins of some of the fronds.
a. moss b. whisk fern c. fern d. club moss e. horsetail
The value to Darwin of Lyell’s ideas on the geologic
history of the earth was the a. evidence from fossils. b. record of catastrophic changes that encouraged evolution. c. confirmation of Lamarck’s theories. d. enormous lengths of time required for geologic events. e. proof of several sites of creation.