If an enzyme catalyzes the reaction A + B ? C, then
A. the enzyme could also convert A + B to another molecule D.
B. the enzyme will also catalyze the reaction C ? A + B
C. the enzyme undergoes a conformational change when bound to A and B.
D. the enzyme energizes A and B to make them more reactive.
E. the active site of the enzyme binds C more tightly than A and B.
Answer: C
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An allopolyploid is
a. a polyploid that arose from a hybrid individual. b. a species that arose parapatrically. c. an allopatrically arising species. d. a polyploid arising from a single diploid individual. e. any sympatrically arising species.
Four of the five answers listed below are regions of the vertebral column. Select the exception
a. cervical b. appendicular c. lumbar d. thoracic e. sacral
An ecosystem
a) consists of all of the living and non-living things functioning together in an area b) consists of all the living organisms in a given area c) is composed of all of the abiotic factors that influence living organisms in a given area d) consists of all of the living animals in a given area e) is composed of the plant life and climate of a given area
Under what conditions would you expect a plant to have the highest concentration of abscisic acid (ABA)?
A) wet tropical rain forest B) cool environment after a heavy rain C) houseplant growing in low light conditions D) desert after a long drought