Cells Flashcards
(26 cards)
Isotonic Solution
The concentration of solute/solution is equal inside and outside the cell
Hypertonic
There is a high concentration of salt outside the cell
- cell shrinks
Hypotonic
Low salt concentration outside the cell
- Cell swells and grows
Osmosis
Equaling the concentration of solutes by moving water through a semi permeable membrane
- Solution between to environments has the same solute/solution ratio
How does glucose move from the blood stream into cells for use in the production of ATP?
Cell - Mediated Diffusion
A Characteristic of the Phospholipid Bilayer
(In respect to water soluble molecules)
Impermeable
What Would Happen to a Red Blood Cell If It Came Into Contact With Pure Water
Swell + Burst
How Many Na+ Ions Are Moved By The Na+/K+ ATPase Pump
And What Direction
3 Na+ ions, moved to outside of the cell
Na, Na, Na, get out
How Many K+ Ions Are Moved By The Na+/K+ ATPase Pump
And What Direction
2 K+ ions, moved to inside the cell
Which Type Of Lipid Is Used To Create Hormones?
Cholesterol
Schwann cells are functionally similar to…
Oligodendrocytes
Oligodendrocyte
Function
Myelination of CNS neurons
The gap between Schwann cells in the peripheral system is called…
Node of Ranvier
What Is Value 1.
-70 mV
(Resting Membrane Potential)
What Is Value 2.
-55 mV
(Threshold)
What Is Value 3.
0
What Is Value 4.
+30 mV
(Peak Action Potential)
Identify Process 5.
Resting Membrane Potential
What Has Occurred At Process 6.
Stimulus Applied
Identify Process 7.
Depolarization
What Is Occurring During Process 7?
Na+ ions are rushing into the cell
What Is Occurring At Process 8?
Peak Action Potential
K+ Channels are opened
What Is Process 9?
Repolarization
What Is Occurring At Process 9?
K+ ions are flooding out of the cell
