The substance that is worked on by an enzyme is called:
A) substrate. B) inhibitor. C) product. D) coenzyme.
Answer: A
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If the partial pressure of oxygen (pO2) in a man's blood plasma decreased below that in his red blood cells, what would be the result?
A. More oxygen would diffuse into his red blood cells and be transported throughout his body. B. Oxygen would diffuse out of his red blood cells, and less oxygen would be transported throughout his body. C. The concentration of oxygen would be the same in red blood cells and blood plasma.
The normal _____________________ protein binds to hundreds of other proteins to facilitate synaptic function, cell
signaling, intracellular transport, and transcription. Fill in the blank(s) with the appropriate word(s).
Which of the following statements about DNA replication is INCORRECT?
A. It begins at multiple origins of replication sites along eukaryotic chromosomes. B. It proceeds with the addition of new nucleotides to the 3? end of a growing DNA strand. C. It is powered by the hydrolysis of ATP. D. Each strand within the DNA double helix is used as a template for synthesis of a new strand. E. It requires that both strands of the double helix be separated from each other
The density of a population is defined as______
a. the number of individuals in a population at a specified time b. the number of individuals in a population at a specified place c. the number of individuals per unit area or per unit volume of habitat d. the size of the individual organisms per unit area e. the number of the individual organisms per unit size of each individual