Which of the following reduces the net rate of diffusion of substance across a membrane?
1.Increasing the molecular weight of the substance
2.Decreasing the thickness of the membrane
3.Increasing the surface area of the membrane
4.Increasing the lipid solubility of the substance
5.Increasing the concentration difference of the substance across the membrane
1
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The papillary muscles attach to the cusps of the atrioventricular valves by means of the
A. pectinate muscles. B. trabeculae carneae. C. conus arteriosus. D. tendinous cords. E. tricuspid valve.
Transamination
A. results in free fatty acids. B. directly produces urea. C. can be used to synthesize essential amino acids. D. involves removing an amine group from an amino acid. E. requires glucose.
Which of the following is the name of the muscular layer of the bladder?
A. Trigone B. External urethral sphincter C. Muscularis D. Rugae E. Detrusor
What is the most widely distributed sweat gland in the body?
A. Ceruminous B. Sebaceous C. Eccrine D. Apocrine E. Sweat