3.....ughh Flashcards Preview

Biology > 3.....ughh > Flashcards

Flashcards in 3.....ughh Deck (17):
0

Cell Mem
outer mem..
moves in &...
double layer of..

Outer membrane of cell
Moves in & out
Double layer of phospholipid

1

Selectively Permeable Mem
allows SOME subst.. to pa..

allows SOME substances to pass through

2

Concentration
# of mol.. in a sub..

Number of molecules in a substance

3

Concentration Gradient
diff in sub.. concen.. from 1 place to an..

difference in substance concentration from 1 place to another

4

Osmosis
water mol.. diffuse & mo.. across a semi permea.. mem from an area of higher water con.. to a lower

water molecules diffuse & move across a semi permeable membrane from an area of higher water concentration to a lower

5

Isotonic
Solution w/ = concen.. of dissolved particles as a cell

Solution w/ = concentration of dissolved particles as a cell

6

Hypertonic
Higher amount of dissolved parti.. than a ..

Higher amount of dissolved particles than a cell

7

Facilitated diffusion
Diffusion of mole.. across a Mem through transport pro..

Diffusion of molecules across a Mem through transport proteins

8

Passive Transport
movement of mole.. across a cell mem..

movement of molecules across a cell membrane

9

Hypotonic
Solu.. that has a lo.. amount of dissolved parti.. than a ce..

Solu.. that has a lo.. amount of dissolved parti.. than a ce..
Solution that has a lower amount of dissolved particles than a cell

10

Diffusion
Movement of molec.. in a fluid/gas from a H+ regi.. to a lower

Movement of molecules in a fluid/gas from a H+ region to a lower

11

Receptors
prote.. that detects a mole.. & then rea..

protein that detects a molecules & then reacts

12

Active Transport
drives molec.. across a mem.. from a lower + to a higher +

drives molecules across a membrane from a lower + to a higher +

13

Endocytosis
absorbs or takes liqui../large mole.. into a cell by engulfing them in a mem..

absorbs or takes liquids/ large molecules into a cell by engulfing them in a membrane

14

Exocytosis
Opposite of endocyto.. ; releases molec.. by the fusion of a vesi.. w/ the mem..

Opposite of endocytosis; releases molecules by the fusion of a vesicle w/ the membrane

15

Phagocytosis
type of ENDOCYT..
the cell mem.. engulfs large parti..

type of ENDOCYTOSIS
the cell membrane engulfs large particles

16

Phospholipid
Molec.. that forms a double-layered cell mem..

Molecule that forms a double-layered cell membrane