Membrane Transport

Question 1

refers tothe movement of particles (solute) across or through a membranous barrier

Answer 1

membrane transport

Question 2

Type of Membrane Transport

Answer 2

Passive
Active

Question 3

type of membrane transport that does not require energy to move substances across cell membranes.

Answer 3

passive transport

Question 4

Types of Passive Transport

Answer 4

Diffusion
Facillitated Diffusion
Osmosis

Question 5

the movement of molecules or ions across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient.
Requires cellular energy to achieve this movement

Answer 5

Active Transport

Question 6

Types of Active Transport

Answer 6

Primary & Secondary Active Transport
Endocytosis & Exocytosis

Question 7

The outermost component of cell and forms the boundary between material inside and outside material

Answer 7

Cell membrane

Question 8

Acting as a barrier that determined what moves into and out of the cell

Answer 8

Cell membrane

Question 9

Cell membrane consist of

Answer 9

Extracellular substances
Intracellular substances

Question 10

It is which a cell membrane have that allows only certain substances to pass in and out of the cell

Answer 10

Selective Permeability

Question 11

Some materials can pass through while others are excluded

Answer 11

Selectively Permeable Barrier

Question 12

High Concentration Inside the Cell

Answer 12

Enzymes
Glycogen
Potassium

Question 13

High Concentration Outside the Cell

Answer 13

Sodium
Calcium
Chloride

Question 14

involved in the movement of substance both entry and exit in the cell. They transport substances without binding to them and without spending energy

Answer 14

Transmembrane Protein Channel

Question 15

It is substance that can pass directly through the cell membrane’s phospholipid bilayer

Answer 15

O2
CO2

Question 16

In cell membrane some substances must pass through? Like?

Answer 16

Transmembrane protein channel
Na+

Question 17

Route of transport through the membrane depends on

Answer 17

Size
Shape
Charge of substance

Question 18

What do glucose required to be transported across the cell membrane

Answer 18

Carrier molecules

Question 19

Some substances also require ____ across the membrane

Answer 19

Vesicular Transport

Question 20

It must fuse with the cell membrane for transport

Answer 20

Vesicle

Question 21

Membrane Characteristics

Answer 21

Selectively Permeable
Asymmetric
Amphiphilic

Question 22

2 Basic Methods of Movement Through Cell Membrane

Answer 22

Passive Transport
Active Transport

Question 23

Homogeneous mixture of two or more components

Answer 23

Solution

Question 24

Example of Solution

Answer 24

Air
Fluid of Plasma Membrane
Seawater
Rubbing alcohol

Question 25

Disolving medium Typically water in the body

Answer 25

Solvent

Question 26

Components in smaller quantities within a solution

Answer 26

Solute

Question 27

The difference in the concentration of a solute in a solvent between two points divided by the distance between the two points

Answer 27

Concentration Gradient

Question 28

Passive movement of molecules from an area of high concentration to an area of low concentration

Answer 28

Diffusion

Question 29

3 Condition that molecules will move by diffusion

Answer 29

1. Molecules are small enough to pass through the membrane's pores (channels formed by membrane proteins) (FD) 2. The molecules are lipid-soluble (D) 3. The molecules are assisted by a membrane carrier (FD)

Question 30

Types of Cell Membrane Channel

Answer 30

Leak Channels Gated Channels

Question 31

Constantly allow ions to pass through

Answer 31

Leak channels

Question 32

Limit the movement of ions across the membrane by opening and closing

Answer 32

Gated channels

Question 33

Diffusion of water across selectively permeable membrane, such as the cell membrane, from a region of higher water concentration to one of lower water concentration

Answer 33

Osmosis

Question 34

Pressure created by water moving across the membrane due to osmosis

Answer 34

Osmotic Pressure

Question 35

The more water moving across the membrane, the?

Answer 35

Higher the osmostic pressure

Question 36

Diff. Solution

Answer 36

Hypotonic Solution Hypertonic Solution Isotonic Solution

Question 37

where the water moves

Answer 37

Hypertonic areas

Question 38

Lower solute concentration compared to the intracellular solute concentration lower concentration of solute than another solution, meaning water will flow out of it Swell

Answer 38

Hypotonic Solution

Question 39

higher concentration of solute than another solution, meaning water will flow into it

Answer 39

Hypertonic solution

Question 40

same solute concentration and water concentration compared to body fluids

Answer 40

Isotonic solution

Question 41

Cell Swell

Answer 41

Hypotonic

Question 42

Cell Shrink

Answer 42

Hypertonic

Question 43

Cell neither shrink nor swell

Answer 43

Isotonic

Question 44

Proteins within the cell membrane

Answer 44

Carrier molecules

Question 45

Carrier molecules are involved in this mechanism which move large, water-soluble molecules or electrically charged ions across the cell membrane

Answer 45

Carrier-Mediated Transport Mechanism

Question 46

It is where molecule to be transported bind on one side of the molecule

Answer 46

Specific Carrier Molecule

Question 47

Carrier Mediated Trasport Mechanism Include:

Answer 47

Facilitated Diffusion and Active Transport

Question 48

Exhibit specificity which means only specific molecules are transported by the carriers

Answer 48

Carrier Mediated Transport Mechanism

Question 49

Does not require ATP for energy

Answer 49

Facilitated Diffusion

Question 50

Does require ATP for transport

Answer 50

Active Transport

Question 51

Carrier-mediated transport process that moves substances from an area of high concentration to an area of low concentration with the help of a transport molecule

Answer 51

Facilitated Diffusion

Question 52

Carrier-mediated process that moves substances across the cell membrane from regions of lower concentration to those of higher concentration against a concentration gradient

Answer 52

Active Transport

Question 53

Primary Active Transport

Answer 53

NaK Pump

Question 54

Moves Na+ out of cells and K+ into cell

Answer 54

Sodium-Potassium Pump

Question 55

Sodium Potassium Pump is necessary for

Answer 55

Nerve Impulses

Question 56

Result of Sodium-Potassium Pump

Answer 56

Higher Concentration of Sodium/Na+ outside cell Higher Concentration of Potassium/K+ inside cell

Question 57

Secondary Active Transport

Answer 57

Cotransport Countertransport

Question 58

The diffusing substance moves in the same direction as the transported substance

Answer 58

Cotransport

Question 59

The diffusing substance moves in the direction opposite to that of the transported substance

Answer 59

Countertransport

Question 60

Large water-soluble molecules, small pieces of matter, and even whole cells can be transported across cell membranes in membrane-bound sacs called

Answer 60

Vesicle

Question 61

Uptake of material through the cell membrane by the formation of a vesicle

Answer 61

Endocytosis

Question 62

Endocytosis

Answer 62

Receptor-Mediated Phagocytosis Pinocytosis

Question 63

occurs when a specific substance binds to the receptor molecule and is transported into the cell

Answer 63

Receptor-Mediated Endocytosis

Question 64

Used for endocytosis when solid particles are ingested Engulf large particles Protective mechanism, not a means of getting nutrients

Answer 64

Phagocytosis

Question 65

Cell-Eating

Answer 65

Phagocytosis

Question 66

Smaller vesicles are formed, they contain liquid rather than solid particles Plasma membrane forms a pit, and edges fuse around droplet of fluid Cell "gulps" droplets of extracellular fluid cobtaining dissolved protein or fats

Answer 66

Pinocytosis

Question 67

Cell-Drinking

Answer 67

Pinocytosis

Question 68

Process when secretory vesicles move to the cell membrane, where the membrane of the vesicle fuses with the cell membrane and the material in the vesicle is eliminated from the cell

Answer 68

Exocytosis