Which of the following statements is true?
a. Tonicity refers to the effect of penetrating solutes on cell volume.
b. A one molal solution contains 1 mole of solute per liter of solution.
c. To accommodate larger molecules, membrane channels have an average diameter of 1 – 1.5 nanometers.
d. Carrier proteins span the membrane and can undergo shape changes.
e. Aquaporins regulate solute movement across membranes.
D
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Which of the following statements concerning the process of glomerular filtration is correct?
a. Bowman's capsule hydrostatic pressure opposes filtration. b. the glomerular filtration rate is limited by a Tm. c. all of the plasma that enters the glomerulus is filtered. d. two of these answers. e. all of these answers.
For the following, match the term with the best description.A. A characteristic of aging arteriesB. Produced by turbulent blood flowC. Blood flow is directly proportional to pressure differences and inversely proportional to resistanceD. As pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapseE. A characteristic of the venous systemArteriosclerosis
Fill in the blank(s) with the appropriate word(s).
The common ________ veins converge at the level of L5 to form the inferior vena cava.
Fill in the blank(s) with the appropriate word(s).
________ are short term regulators of appetite, whereas ________ is a long-term regulator.
A. Leptin and insulin; cholecystokinin (CCK) B. Peptide YY (PYY) and insulin; cholecystokinin (CCK) C. Leptin and insulin; peptide YY (PYY) D. Peptide YY (PYY) and cholecystokinin (CCK); insulin E. Insulin and cholecystokinin (CCK); peptide YY (PYY)