Dalton's Law states that:a
the amount of a gas that diffuses across a membrane depends on the differences in the gas'
partial pressure.
b. the ability of hemoglobin to bind oxygen depends on the partial pressure of oxygen.
c. in a mixture of gases, the total pressure of the mixture is the sum of the pressures of the
individual gases.
d. pH causes a displacement of the oxygen-hemoglobin dissociation curve.
e. as the concentration of chloride ions increases, the ability of hemoglobin to bind carbon
dioxide decreases.
C
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A protozoan may possess any of the following except:
A) cilia. B) flagella. C) hyphae. D) pseudopodia.
What is the approximate molecular weight of the protein that is missing from the homozygous recessive extract?
a. 25 kDa b. 35 kDa c. 45 kDa d. 65 kDa
The observation that Tiktaalik had both gills and lungs suggests which of the following?
A. It could absorb both food and oxygen from the water. B. It could absorb oxygen from both the air and water. C. It could absorb food from the water. D. It could absorb oxygen from the water. E. It could absorb oxygen from the air.
The liver performs all of the following functions EXCEPT for ____
a. secreting digestive enzymes into the small intestines b. producing bile c. synthesizing plasma proteins d. storing excess glucose e. storing vitamins and minerals