Lecture Test 1 A&P (Ch 4) [Anatomy and Physiology: An Integrative Approac (Micha
McKinley , 2) ]
1. Cells: Basic unit of all living things
2. Cytology:
Study of cells
3. Cell Membrane:
4. Fluid Mosaic model of Cell:
5. Ion Channel: Molecules in the membrane that serve as channels for water-
soluble molecules and ions.
6. : Serve as biological markers that aid in cellular interactions.
7. Plasma membranes: phospholipids:
glycerol
2 -chains of fatty acids hydrophillic
head hydrophollic tail bilayer
8. Membrane Transport: Movement of substances into and
out of a cell
9. Active Transport: Movement of particles from low to high concentration across
the membrane that requires energy (ATP).
10. Passive Transport: Diffusion: the movement of substances across a cell
membrane without the use of energy by the cell
-simple: from high to low
-osmosis: involves the diffusion of water
- is a membrane necessary for this to occur? yes
11. Diffusion: - it requires no energy/ATP
Movement of molecules from an area of higher concentration to an area of lower
concentration.
, Lecture Test 1 A&P (Ch 4) [Anatomy and Physiology: An Integrative Approac (Micha
McKinley , 2) ]
12. Carrier Mediated Transport: Anytime a substance enters or exits a cell
through a protein in the membrane
13. Facilitated Diffusion: :
-organic compound that enters using facilitated diffusion
________
-diffusion of molecules assisted by protein channels that pierce a cell membrane
14. Filtration in cell: :
-does it require energy?:
Process whereby some substances, but not all, pass through a filter
15. : Driving force for diffusion
16. Net flow of concentration gradient in diffusion: : flows down until
equilibrium is met.
17. Osmotic pressure: The pressure needed to stop the movement of water
across the membrane
18. diffusion rate: Temperature,
19. Isotonic solution: -Nothing happens to the cell
-Concentration of solutes outside the cell equals the concentration inside the cell
20. Hypertonic Solution: Solute concentration is greater than that inside the cell;
cell loses water
21. Hypotonic Solution: Solute concentration is less than that inside the cell; cell
gains water
McKinley , 2) ]
1. Cells: Basic unit of all living things
2. Cytology:
Study of cells
3. Cell Membrane:
4. Fluid Mosaic model of Cell:
5. Ion Channel: Molecules in the membrane that serve as channels for water-
soluble molecules and ions.
6. : Serve as biological markers that aid in cellular interactions.
7. Plasma membranes: phospholipids:
glycerol
2 -chains of fatty acids hydrophillic
head hydrophollic tail bilayer
8. Membrane Transport: Movement of substances into and
out of a cell
9. Active Transport: Movement of particles from low to high concentration across
the membrane that requires energy (ATP).
10. Passive Transport: Diffusion: the movement of substances across a cell
membrane without the use of energy by the cell
-simple: from high to low
-osmosis: involves the diffusion of water
- is a membrane necessary for this to occur? yes
11. Diffusion: - it requires no energy/ATP
Movement of molecules from an area of higher concentration to an area of lower
concentration.
, Lecture Test 1 A&P (Ch 4) [Anatomy and Physiology: An Integrative Approac (Micha
McKinley , 2) ]
12. Carrier Mediated Transport: Anytime a substance enters or exits a cell
through a protein in the membrane
13. Facilitated Diffusion: :
-organic compound that enters using facilitated diffusion
________
-diffusion of molecules assisted by protein channels that pierce a cell membrane
14. Filtration in cell: :
-does it require energy?:
Process whereby some substances, but not all, pass through a filter
15. : Driving force for diffusion
16. Net flow of concentration gradient in diffusion: : flows down until
equilibrium is met.
17. Osmotic pressure: The pressure needed to stop the movement of water
across the membrane
18. diffusion rate: Temperature,
19. Isotonic solution: -Nothing happens to the cell
-Concentration of solutes outside the cell equals the concentration inside the cell
20. Hypertonic Solution: Solute concentration is greater than that inside the cell;
cell loses water
21. Hypotonic Solution: Solute concentration is less than that inside the cell; cell
gains water
