Cell Transport

Question 1

Polarity

Answer 1

Partial charges are created by the unequal sharing of electrons

Question 2

Lipids are…

Answer 2

Non-Polar

Question 3

Amphipathic

Answer 3

Having both a polar region and a nonpolar region

Question 4

What are Channel Proteins?

Answer 4

Channel proteins are proteins that act as gates that allow polar molecules to pass through.

Question 5

The Shape of Channel Proteins

Answer 5

Donut-Shaped

Question 6

What are Marker Proteins?

Answer 6

Marker proteins are proteins in the cell membrane that identify the cell.

Question 7

The Shape of Marker Proteins

Answer 7

Elongated and Twisted

Question 8

What are receptor proteins?

Answer 8

Receptor proteins are proteins that transmit information in and out of cells.
Communication between cells.

Question 9

The Shape of Receptor Proteins

Answer 9

Boulder-Shaped

Question 10

Integral Proteins

Answer 10

Embedded in the phospholipid bilayer

Question 11

Diffusion

Answer 11

Movement of molecules from an area of higher concentration to a lower concentration

Question 12

Osmosis

Answer 12

Diffusion of water through a selectively permeable membrane

Question 13

Carrier Transport

Answer 13

Movement of materials through a cell membrane with the aid of protiens

Question 14

Facilitated Diffusion

Answer 14

The transport of substances through a cell membrane with the aid of channel proteins.
Transport through with aid

Question 15

Endocytosis

Answer 15

A process by which a cell takes material into the cell by folding in the cell membrane to create a vesicle
Vagina

Question 16

Exocytosis

Answer 16

The release of substances out of a cell by the fusion of a vesicle with the membrane

Question 17

Passive Transport

Answer 17

The movement of molecules that does not require energy, from high [] to low []

Question 18

What Determines the Passage of Molecules through the Lipid Bilayer

Answer 18

Shape, size, and charge of molecules

Question 19

What is the Cell Membrane?

Answer 19

A cell structure that controls which substances can enter or leave the cell, made of phospholipids.

Question 20

Hypertonic Solutions

Answer 20

Contain a higher % of solute (sugar/salt) than an environment separated by a membrane

Question 21

Hypotonic Solutions

Answer 21

Contain a lower % solute than an environment separated by a membrane

Question 22

Cytolysis

Answer 22

the bursting of a cell due to high osmotic pressure

Question 23

Osmotic Pressure

Answer 23

Pressure of water pushing on the cell membrane

Question 24

Plasmolysis

Answer 24

Wilting or shrinking of cells due to low osmotic pressure (only in plants)

Question 25

Cells will ____________________ when placed in a hypertonic salt solution

Answer 25

Shrink

Question 26

Cells will _____________________ when placed in a hypotonic solution

Answer 26

Swell

Question 27

Red blood cells will __________________ if placed in a hypotonic solution

Answer 27

Burst

Question 28

Polar is attracted to...

Answer 28

Polar

Question 29

What is active transport?

Answer 29

The movement of materials through a cell membrane using energy, from low [] to high []

Question 30

Isotonic Solutions

Answer 30

Solutions that contain an equal concentration of solute and solvent

Question 31

Equilibrium

Answer 31

Equal movement of molecules through a membrane, balance of dissolved solute in solution inside and outside of cells.

Question 32

Solute

Answer 32

Substance that is dissolved in a solution

Question 33

Solvent

Answer 33

A substance in which the solute dissolves

Question 34

Solution

Answer 34

A mixture that is formed when one substance dissolves another

Question 35

Vesicles

Answer 35

Small sacs that move products in, out, and within a cell

Question 36

Two types of endocytosis

Answer 36

Phagocytosis and pinocytosis (Phag and Pino)

Question 37

Concentration Gradient

Answer 37

A difference in the concentration of a substance across a distance Tornado drawing Dark means more concentration light means less concentration

Question 38

What molecules can pass through a membrane by diffusion?

Answer 38

Oxygen, carbon dioxide, and water.

Question 39

What molecules cannot pass through a membrane by diffusion?

Answer 39

Salt, potassium, and glucose

Question 40

What are phospholipids composed of?

Answer 40

A phosphate group, a glycerol, and fatty acids

Question 41

Fluid Mosaic Model

Answer 41

The structure of the plasma membrane is a mosaic of components including phospholipids, cholesterol, proteins, and carbohydrates that gives the membrane a fluid character.

Question 42

Inside and outside of cells are...

Answer 42

Mostly a watery environment