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22 Cards in this Set
- Front
- Back
- 3rd side (hint)
Cytoplasm |
Interior contents of a cell |
1. Jelly substance 2. "Try to pull a fast one the ________ gels!" |
|
Phospholipids |
Lipids that make up a big part of the cell membrane |
1. Make up the membrane 2. Make a ______ bilayer |
|
Phospholipid Bilayer |
Polar heads facing out and non polar tails facing inward |
1. 2 layers |
|
Polar |
Slight charge |
1. Water is a ______ molecule 2. ______ heads facing out |
|
Nonpolar |
Neutral charge |
1. Gas is _______ 2. _________ tailed facing inward |
|
Transport Proteins |
Help transport large polar molecules and ions through the membrane |
1. Big ions and polar molecules need _____ to pass. 2. Span the bilayer |
|
Selective Permeability |
Allows certain things through the membrane. |
1. Somethings can pass! Others cannot! 2. Phospholipid chant |
|
Glycoproteins |
Sugar+proteins |
1. Receptor protein 2. Recieves chemical signals |
|
Glycolipids |
Sugar+fat |
1. Receptor lipid 2. Receives chemical signals |
|
Fluid Mosaic Model |
Flexible structure of the cell membrane |
1. Consists of phospholipid bilayer, transport proteins, and receptor proteins and lipids |
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Diffusion |
Natural tendency of particles to move from an area of high concentration to an area of low concentration
|
1. Passive transport 2. Works only for a small polar and nonpolar molecules |
|
Concentration Gradient |
When there is a difference in The concentration of a substance across an area
|
1. Used by cells as a way to store potential energy 2. Used to carry out cellular process |
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Osmosis |
Diffusion of water across a membrane from an area with high concentration of water to an area with low concentration of water
|
1. Rate depends on the surface area in size of concentration gradient 2. Hypo, hyper, iso. |
|
Turgor |
Stretch of cells due to absorbed fluids
|
1. Getting bigger 2. Stretching from to much water |
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Isotonic |
Equal amount of water
|
1. Equal solute and water |
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Hypotonic |
More water outside the cell, increase in turgor pressure, cell could burst
|
1. Cell could burst |
|
Hypertonic |
More water inside the cell, water leaves and cell shrinks
|
1. Shrinking of cell |
|
Passive Transport |
Movement of substances across the cell membrane
|
1. Diffusion, osmosis, facilitated diffusion. 2. Does not require energy |
|
Active Transport |
Movement of substances through transport protein that requires the use of energy
|
1. Requires energy |
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Facilitated Diffusion |
Movement of large polar molecules and ions to transfer proteins
|
1. High concentration-low concentration 2. Absorbed by membrane |
|
Endocytosis |
Movement of very large substances into the cell by folding in sections of the cell membrane
|
1. Endo=in 2. Opposite of Exocytosis |
|
Exocytosis |
Movement a very large substances out of the cell
|
1. Exo=out 2. Done by folding |