You examine a cell by electron microscopy and find a molecule on the outside of the cell and in vesicles in the cytoplasm. The most likely explanation is that this substance moved into the cell by

A. apoptosis.
B. osmosis.
C. endocytosis.
D. diffusion.
E. facilitated diffusion.


Answer: C

Anatomy & Physiology

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A) parallel processing B) reverberating C) converging D) diverging E) serial processing

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The figure illustrates the sacrum. What structure does "C" represent?

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An abnormally low production of gonadotropin produces a condition called __________.

a. follitropism b. hypogonadism c. somatomedins d. diabetogenesis

Anatomy & Physiology