Which of the following factors influence cell membrane permeability?
A. Phospholipid composition of the membrane
B. Ionic charge along the membrane
C. Presence or absence of transport proteins
D. Molecule size
E. All of the choices are correct.
E
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What occurs during hyperpolarization of a neuron membrane?
A. Sodium ions are leaving the cell B. Sodium ions are entering the cells C. Potassium ions are leaving the cell D. Potassium ions are entering the cell E. Both sodium and potassium ions are leaving the cell
Immunoglobulin A is abundant in endocrine gland secretions.
Answer the following statement true (T) or false (F)
The typical onset of type 1 diabetes is before ________
A) Age 5-6 B) Age 40 C) Age 10 D) Puberty
Which wastes are removed from the blood by tubular secretion? select all that apply.
a) bile acids b) water c) ammonia d) glucose e) urea