Iron ions and cholesterol are brought into the cell by the process of
A) bulk transport.
B) pinocytosis.
C) receptor-mediated pinocytosis.
D) phagocytosis.
E) None of the answers are correct.
C) receptor-mediated pinocytosis.
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Which is not correct about the esophagus?
A. It produces movement by peristalsis. B. It serves as the passageway for a bolus to pass from the pharynx to the stomach. C. It opens to the cardia of the stomach. D. It is located posterior to the trachea. E. It secretes a variety of enzymes for chemical digestion.
Fourth-degree burns affect the ___ .
Fill in the blank(s) with the appropriate word(s).
Which of the following cells stand guard against toxins, microbes and other pathogens?
A. Tactile cells B. Dendritic cells C. Keratinocytes D. Melanocytes E. Adipocytes
The role of the spleen in the lymphatic system is to provide a site for lymphocyte proliferation and immune surveillance
Indicate whether the statement is true or false