What does it mean when an enzyme is saturated?
a. It means the enzymes need more reactants.
b. It means the enzymes have sufficient reactants available for optimal activity.
c. It means the enzymes cannot continue to catalyze the reaction.
d. It means the reaction is at equilibrium.
Answer: b. It means the enzymes have sufficient reactants available for optimal activity.
You might also like to view...
S. pyogenes associated with invasive disease characteristically have
A. leukocidins. B. coagulase. C. streptococcal pyrogenic exotoxin A. D. streptococcal pyrogenic exotoxin B. E. streptococcal pyrogenic exotoxins A AND B.
Environmental stress can result from an inadequate supply of which of the following?
a. minerals b. sunlight c. water d. all of these
What is the specific role of Xist in mammalian X-inactivation?
a. It encodes a protein that triggers heterochromatin formation on one X and suppresses it on the other X. b. It is a DNA element acting as a binding site for proteins that trigger heterochromatin formation. c. It produces an antisense RNA that prevents inactivation of one X chromosome. d. It produces an RNA that accumulates on the future inactive X. e. It encodes a transcription factor that activates genes producing proteins that function in X-inactivation.
The concentration of nitrates is often higher in plant roots than it is in the soil around them. Plants maintain this difference in concentration through
a. active transport b. diffusion c. excretion d. coordination