The sodium level inside and outside of a resting cell is an example of the
A. potential energy of an electron transport chain, because sodium has an extra electron to donate.
B. potential energy of a concentration gradient, because sodium is more abundant outside the cell.
C. conversion of potential energy to kinetic energy, because sodium can never move across the cell membrane and must move across its surface.
D. kinetic energy of sodium rushing out of a cell down its concentration gradient.
E. kinetic energy of the large difference in sodium concentration on the inside versus the outside of the cell.
Answer: B
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A) myenteric plexus B) artery and vein C) lymphatic vessel D) submucosal plexus E) mucosal glands
The term transport maximum, Tm, refers to
a. the maximum amount of a substance that the tubular cells can transport within a given period. b. the maximum amount of a substance that flows through the peritubular capillary within a given period. c. the maximum rate of diffusion of sodium through the glomerular membrane. d. the maximum amount of filtrate that can be produced in the presence of aquaporins.
Atrial natriuretic peptide (ANP) reduces blood volume and pressure by:
blocking release of ADH stimulating peripheral vasodilation increased water loss by kidneys decrease thirst all of the choices are correct
The falciform ligament connects which organ to the diaphragm?
A) transverse colon B) ileum C) liver D) stomach