Distinguish between the following terms: cotransport; antiport; symport.
What will be an ideal response?
Cotransport is the moving of more than one kind of molecule at one time. Antiport is cotransport of two or more solutes in opposite directions across the membrane. Symport is cotransport of two or more solutes in the same
direction across the membrane.
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Isotopes have the same ________ number, but a different ________ number.
A. neutron; mass B. mass; atomic C. atomic; proton D. atomic; mass
If an animal cell lacked centrioles, it would not be able to
A) move. B) synthesize proteins. C) produce DNA. D) metabolize sugars. E) form the mitotic spindle.
Of these four events, which would occur first in urine formation?
A) Glomerular filtration B) Tubular secretion C) Tubular resorption D) Urine concentration
What occurs during hyperpolarization of a neuron membrane?
A) Both sodium and potassium ions are leaving the cell B) Potassium ions are leaving the cell C) Sodium ions are entering the cells D) Potassium ions are entering the cell E) Sodium ions are leaving the cell