The term __________ describes a state where the
body’s internal fluid environment is maintained
within a tolerable range.
a. metabolism
b. equilibrium
c. homeostasis
d. integration
e. compartmentalization
Answer: c
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. Reversible reactions in a cell rarely reach equilibrium because ____
a. the products are generally reactants in other reactions and are thus immediately used b. a cell at equilibrium is dead c. they are highly regulated to prevent overuse of reactants d. cells have no way of measuring the relative ratios of reactants and products e. conditions in the cell change too rapidly for any reaction to ever reach equilibrium
What selective pressures are likely to have led to the evolution of regulatory systems like operons? Why not simply express these genes continuously?
What will be an ideal response?
Which of the following are possible strategies for treating viral infections?
A. All of the listed strategies are correct. B. Blocking viral attachment to host cell receptors C. Blocking uncoating of the virus after entry D. Blocking insertion of viral DNA into the host cell chromosomes E. Blocking biosynthesis of viral nucleic acids
Hyphae are associated with which of the following?
A. yeasts B. algae C. molds D. protozoa E. helminths