Located between the pedicels of the podocytes are which of the following?
a) fenestrations
b) filtration silts
c) microvilli
b) filtration slits
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Which is true about mediated transport across cell membranes?
A. It refers to the movement of ions through protein channels. B. It refers both to simple diffusion and to the active transport of molecules. C. It is characterized by saturable carriers and a maximum velocity of transport. D. As the concentration gradient across a membrane increases, the transport rate always increases. E. It is nonspecific; any transporter can transport any molecule across the cell membrane.
The human body has only one of which of the following vessels?
A. Superior phrenic artery B. Superior mesenteric artery C. Axillary artery D. Femoral artery E. Plantar arch
Bipolar neurons have
A) two axons. B) two presynaptic terminals. C) one axon and one presynaptic terminal. D) one axon and one dendrite.
Select all that are true when a muscle fiber is at rest.A) There is a charge difference across the sarcolemma.B) Sodium-potassium pumps are active.C) Calcium is stored in the sarcoplasm.D) ACh receptors are open.
What will be an ideal response?