AP bio ch5 and 6

studied byStudied by 0 people
0.0(0)
Get a hint
Hint

Plasma membrane

1 / 36

37 Terms

1

Plasma membrane

A phospholipid bilayer with embedded proteins that surrounds both cells and organelles

New cards
2

Fluid Mosaic Model

model that explains the structure of cell membranes

New cards
3

Recognition protein:

Cell surface markers that identify cell types

New cards
4

Receptor proteins:

Proteins that recognize and bind to substances outside of the cell

New cards
5

Transport protein:

Protein that helps substances move across cell membrane

New cards
6

Enzyme:

Protein that assist chemical reactions inside cell

New cards
7

Peripheral proteins:

Proteins loosely attached to the surface of the membrane

New cards
8

Integral proteins

Proteins that penetrate hydrophobic core

New cards
9

Diffusion:

Process of random movement toward a state of equilibrium

New cards
10

Concentration

The amount of solute relative to the amount of solvent

New cards
11

Concentration gradient:

A difference in concentration of a substance across the space

New cards
12

Equilibrium:

Condition in which the concentration of a substance is equal throughout

New cards
13

Passive transport:

Movement of molecules across a cell membrane from an area of high concentration to an area of low concentration

New cards
14

Simple diffusion:

Random movement of molecules through the lipid bilayer of a membrane

New cards
15

Osmosis:

Special kind of diffusion that involves the movement of water through membrane

New cards
16

Hypertonic

An adjective describing a solution that has a higher solute concentration than another solution

New cards
17

Hypotonic:

An adjective describing a solution that has a lower solute concentration than another solution

New cards
18

Isotonic:

Adjective describing a solution that has an equal solute concentration as another solution

New cards
19

Facilitated Diffusion:

Proteins assisting in moving molecules across the membrane, down the gradient

New cards
20

Channel Proteins:

Proteins that go completely through the membrane and provide a safe passage through a polar core

New cards
21

Carrier Proteins:

Proteins which bind to the molecules to shield them from the interior of the membrane and change shape to transport them across the membrane

New cards
22

Active transport:

Transport of material across the cell membrane that goes up the concentration gradient

New cards
23

Sodium potassium pump:

A carrier protein that uses ATP to actively transport sodium ions (Na+) out of the cell and potassium ions (K+) into the cell

New cards
24

Bulk transport:

Moving large quantities of materials into or out of cell

New cards
25

Endocytosis:

Process by which material is brought into a cell by invagination of the plasma membrane and the formation of a vesicle

New cards
26

Exocytosis:

Process by which material is pushed out of a cell by invagination of the plasma membrane and the formation of a vesicle

New cards
27

Coupled Transport

The movement of more than one molecule at the same time across a cell membrane.

New cards
28

Symport

A mechanism of transport across a membrane in which two different molecules move in the same direction in a coupled transport

New cards
29

Uniport

A mechanism of transport across a membrane in which only one molecule at a time passes across the membrane.

New cards
30

Antiport

A mechanism of transport across a membrane in which two different molecules move in opposite directions in a coupled transport

New cards
31

Phagocytosis

"cell eating" type of endocytosis in which large particles are taken in by the cell

New cards
32

Pinocytosis

"cell drinking" type of endocytosis in which liquids or very small particles are taken in by cells

New cards
33

Receptor mediated endocytosis

Type of pinocytosis that is very specific and efficient in which specific molecules can be brought into the cell and are determined by receptors

New cards
34

Cell junctions

Special membranes, formed by cells, that allow cells to attach to one another, communicate with one another, and exchange materials with one another

New cards
35

Desmosome

A strong cell to cell junction that attaches adjacent cells to one another

New cards
36

Tight Junction:

Leak proof junction that creates tight seal between cells

New cards
37

Gap Junction:

Form channels between adjacent cells and allow communication between cells with the exchange of materials

New cards

Explore top notes

note Note
studied byStudied by 23 people
... ago
5.0(1)
note Note
studied byStudied by 73 people
... ago
5.0(2)
note Note
studied byStudied by 7454 people
... ago
4.6(5)
note Note
studied byStudied by 9 people
... ago
5.0(1)
note Note
studied byStudied by 20 people
... ago
5.0(1)
note Note
studied byStudied by 20 people
... ago
5.0(1)
note Note
studied byStudied by 9 people
... ago
5.0(1)
note Note
studied byStudied by 125764 people
... ago
4.8(564)

Explore top flashcards

flashcards Flashcard (28)
studied byStudied by 8 people
... ago
5.0(1)
flashcards Flashcard (20)
studied byStudied by 4 people
... ago
5.0(1)
flashcards Flashcard (56)
studied byStudied by 11 people
... ago
5.0(1)
flashcards Flashcard (47)
studied byStudied by 23 people
... ago
5.0(2)
flashcards Flashcard (58)
studied byStudied by 17 people
... ago
5.0(1)
flashcards Flashcard (246)
studied byStudied by 3 people
... ago
5.0(1)
flashcards Flashcard (38)
studied byStudied by 3 people
... ago
5.0(1)
flashcards Flashcard (84)
studied byStudied by 34 people
... ago
5.0(2)
robot