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26 terms

Biology Chapter 3

Biology Chapter 3 Vocab
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Active Transport
Opposite of Simple Diffussion, material moves up the concentration gradient, uses ATP and a carrier protein.
Carrier Protein [Transport Protein]
Just like an enzyme, found in facilitated diffusion, and active transport.
Crenated [Plasmolyzed]
When cell shrinks by losing H20
Concentration Gradient
A difference in concentration of a substance over a distance.
Cytoplasm
entire contents of the cell, except the nucleus, bounded by the plasma membrane.
Diffusion
the movement of a substance down its concentration gradient from a more concentrated area to a less concentrated area.
Endocytosis
the cellular uptake of materials in which the plasma membrane surrounds and engulfs extracellular materials
Exocytosis
Cells REMOVE waste material
Facilitated Diffusion
the spontaneous passage of molecules and ions, bound to specific carrier proteins, across a biological membrane down their concentration gradients.
Gated Channel
for material to move, RIGHT chemical must be present
Glycolipid
lipid covalently linked to a sugar or polysaccharide, an important part of animal cell membranes
Glycoprotein
protein linked to a sugar or polysaccharide, component of receptor molecules on the outer surface of cells
Hypertonic
Over, above, in excess, 70% H20, 30% Stuff
Hypotonic
Lower, less in environment
Isotonic
equal amount of stuff and stuff, H20 and H20
Osmosis
Simple diffusion of water H20
Osmotic Lysis
Animal version of hypotonic diffusion
Passive Transport
the diffusion of a substance through a biological membrane
Phagocytosis
type of endocytosis, cell EATING
Pincytosis
type of endocytosis, cell DRINKING
Pore
always open for material pending on size and charge
Pseudopodia
false feet, cell engulfs
Selectively Permeable Memberane
allowing some substances to cross while preventing others from crossing
Simple Diffusion
Movement of material from high to low concentration
Turgor [Turgid]
plant version of hypotonic diffusion
Vacuole [Vessicle]
Area where materials are moved in cytosis