The portion of an enzyme where the substrate binds is known as the ____

a. receptor site
b. active site
c. target receptor
d. target site
e. contact site


ANSWER: b

Biology & Microbiology

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What term describes a set of genes that is controlled by a common regulatory protein?

A. Codon B. Transcription C. Regulon D. Kinase

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Which of the following are consequences of hyperventilation?

a. Increasing H+ levels b. Increasing alveolar PCO2 c. Decreasing arterial PCO2 d. Higher blood pH

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Good hand washing is the best preventive measure against the common cold.

a. true b. false

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Where a branching point in a phylogenetic tree is called a ________, it illustrates that ________ has occurred.

A. clade; cladogenesis. B. node; cladogenesis. C. break; anagenesis. D. node; anagenesis. E. break; extinction of a species.

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