The study of enzymes also includes an examination of how the activity is regulated. Molecules that can act as competitive inhibitors for a specific reaction are often similar in shape and size to the enzyme's substrate

Which variable(s) used to describe enzyme activity will remain the same in the presence and absence of a competitive inhibitor?
(a) Vmax
(b) V
(c) Vmax and Km
(d) Km


(a)

Biology & Microbiology

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Purple phototrophic bacteria that use bacteriochlorophyll a are oxygenic

Indicate whether the statement is true or false.

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How many chromosomes are there in a human genome?

A. 22 B. 23 C. 46 D. 64

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Model organisms are useful because:

A) they share basic processes with most organisms B) they are particularly useful as research subjects C) they share many similarities with humans at the molecular level D) all of the choices are correct

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Please choose the statement describing why the geographical location of the fungus is so important to the likelihood of infection.

A) Some fungi favor warmer climates, and others favor colder climates. therefore, where the human population lives, determines the risk of infection. B) Some fungi favor higher humidity, and others favor lower humidity: therefore, where the human population lives determines the risk of infection. C) A particular genus of fungus may be found in a specific location or habitat, such as the ground around an extensive bird nesting site with the bird droppings, serving as nutrients for the fungus. D) The air quality—clean or polluted—determines the likelihood of fungal infections in the human population.

Biology & Microbiology