Osmotic activity across plasma membranes is closely related to
a. the distribution of proteins in the membrane
b. ionic differences between the ECF and ICF
c. differences in protein composition between the ECF and ICF
d. both a and b
e. both a and c
B
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Which of the following is the single most important stimulus for epiphyseal plate activity during infancy and childhood?
A) calcium B) growth hormone C) thyroid hormone D) parathyroid hormone
Enzymes function identically in all species
Indicate whether the statement is true or false
The marginal branch and posterior interventricular branch are branches of the
A) right coronary artery. B) left coronary artery. C) circumflex artery. D) coronary sinus. E) aorta.
Where does the most reabsorption occur in the nephron?
A) distal convoluted tubule B) proximal convoluted tubule C) collecting duct D) glomerulus