Which of the following statements about epithelial cells and epithelial transport is NOT correct?
A. Epithelial cell membranes express different transport proteins on different cell surfaces.
B. Epithelial cells lining the small intestine have Na, K-ATPase pumps only in their basolateral membranes.
C. The plasma membrane of epithelial cells that face the inside of a hollow or fluid-filled chamber in the body is called the basolateral membrane.
D. The pathway taken by substances that flow between epithelial cells is called the paracellular pathway.
E. When substances cross epithelial barriers by going through the cell membranes and cytosol, it is called the transcellular pathway.
C
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The function of yellow bone marrow is:
A) mineral storage. B) triglyceride storage. C) hematopoiesis. D) acid-base homeostasis.
Which describe the seminiferous tubules? Choose all that apply.
A. They are located in the testes. B. They are found on the posterior wall of the bladder. C. They produce sperm. D. They produce semen.
Which type of receptor is sensitive to changes in blood pH?
A) baroreceptors B) proprioceptors C) photoreceptors D) chemoreceptors E) mechanoreceptors