08 Jun BIOLOGY 20 B – Blood velocity in the capillaries is low because
Question
8. Blood velocity in the capillaries is low because
a. blood will naturally flow more slowly in narrow tubes.
b. the total cross sectional area of the capillary beds is much greater than
the total cross sectional area of the arteries and arterioles.
c. precapillary sphincters contract and can slow the blood down before it reaches the capillary bed.
d. a & c
e. b & c
9. Filtrate is forced out of capillaries in the by a. Proximal tubule, osmosis b. Glomerulus, blood pressure
c. Distal tubule, blood pressure
d. Glomerulus, osmosis 10. In the figure to the right, active transport of NaCl out of the filtrate occurs in
a A b. B
c. C
d. D
e. E
11. In the ?gure to the right, in the loop of Henle, passive diffusion of water
occurs in ogop‘m
WUOW> 12. A universal feature of digestion is
a. It requires energy to transport nutrients across epithelial membranes
b. Nutrients must be turned into zymo gens before absorption
c Absorption must occur before digestion
d. The body must breakdown monomers to polymers for absorption
e. The body must breakdown polymers to monomers for absorption
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