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Cells and Cellular Transport
Unit 3 notes.
23
Biology
9th Grade
10/04/2009

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Cards

Term
Prokaryotes
Definition
[BACTERIA] simple cells. have no nucleus, no mitochondria, no cell parts made out of a membrane.
Term
Eukaryotes
Definition
all organisms except bacteria. DO have membrane bound organelles
Term
Organelles
Definition
membrane bound structures in eukaryotic cells; like tiny rooms.
Term
organelles in ONLY plant cells
Definition
Chloroplast, Cell Wall, and (One Large) Vacuole
Term
organelles in ONLY animal cells
Definition
Centrioles
Term

Phospholipid.  Label parts, and tell if Polar or Non-Polar.

[image]

Definition

Top: A Gylcerol Chain(phosphate group) POLAR

Bottom: 2 Fatty acid chains NON POLAR

 


 

 

Term

[image]

Definition
Transport Protein.
Term

[image]

Definition
enzyme proteins
Term
Name tags for cells.
Definition
Chemical Marker Proteins.
Term

[image]

Definition
Receptor Proteins
Term
Last kind of protein in a cell
Definition
Structural Protein
Term
cholesterol
Definition
a LIPID that gives stability to the membrane
Term
Diffusion
Definition
Movement of cells from places of high concentration to low concentration.
Term
Concentration Gradient
Definition
an area of high concentration in contact with an area of low concentration.
Term
Dynamic Equilibrium
Definition
Continuous movement of particles, but no change in concentration.
Term
Osmosis
Definition
The diffusion of water across a SELECTIVELY permeable membrane (water diffuses from high concentration to low concentration)
Term
A Cell in ISOTONIC SOLUTION has...
Definition
equal water in the cell and the solution, water moves both ways equally.
Term
a cell in HYPERTONIC SOLUTION has...
Definition
more substances in the solution than in the cell, water moves out of the cell, therefore the cell shrinks.
Term
a cell in HYPOTONIC SOLUTION has...
Definition
more substances in the cell than in the solution, water moves into the cell, causing it to swell.
Term
Turgor Pressure
Definition
[aka osmotic pressure] the pressure inside a cell that increases as water moves into the cell.
Term
Plasmolysis
Definition
the loss of water from a cell--causes a decrease in turgor pressure.
Term
Passive transport
Definition
DOES NOT REQUIRE ENERGY.
Term
Active Transport
Definition
REQUIRES ENERGY.
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