Osmosis requires:

a) high Na⁺ concentrations.

b) a semipermeable membrane separating areas of different solute

c) diffusion of salt through a semipermeable membrane.

d) concentrations.

e) a nonpermeable membrane separating areas with Na⁺ ions from areas with Cl^– ions.

A genetic mutation causes an individual to produce hemoglobin molecules that do not change their binding affinity for oxygen, even after oxygen binds to a single heme site. How will this mutation affect the transport of oxygen through the individual’s bloodstream?

a) The same amount of oxygen will be transported by hemoglobin to tissues throughout the body.

b) Oxygen will not be bound or released from hemoglobin as readily, limiting O₂ delivery to the tissues.

c) More oxygen will be transported by hemoglobin to tissues throughout the body.

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