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How Various Mechanisms By Which Substances Cross The Cell Me
Part 1 of Paper
....tasis. The membrane has a selective permeability
which means what moves in and out of the cell is regulated. Amino
acids, sugars, oxygen, sodium, and potassium are examples of substances
that enter the cell. Waste products and carbon dioxide are removed from
the cell. All of these substances cross the membrane in a.... Part 2 of Paper
....ly there will be a dynamic equilibrium and there will be no net
movement of molecules from one side to the other.
Osmosis is the diffusion of water. Like diffusion, the water moves
from a region of higher water potential to a region of lower water
potential. Solutions have three different stages that the solutes can
be classified in: isotonic, hypertonic, and hypotonic. Isotonic is when
the solutions have equal amounts of solutes. Like equilibrium, there is
no net change in the amoun.... |
| Number of words: 886 - Approximate pages: 4 |
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