The movement of substances to regions of lower concentration is called 

A. active transport.
B. diffusion.
C. pinocytosis.
D. pumping.
E. exocytosis.


B. diffusion.

Biology & Microbiology

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a. true b. false

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pH7 solution is

a. acidic b. neutral c. basic

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Where are lipids made in the cell?

a. Golgi apparatus b. ribosomes c. mitochondria d. rough endoplasmic reticulum (ER) e. smooth endoplasmic reticulum (ER)

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