Cell Membrane And Transport

Question 1

The _ _ model is used to describe the structure of the cell membrane

Answer 1

Fluid mosaic

Question 2

A form of endocytosis where smaller substances are brought into the cell by forming vesicles at the cell membrane

Answer 2

Pinocytosis

Question 3

_ transport via proteins requires no energy input

Answer 3

Facilitated

Question 4

The _ gland requires the active transport of iodine out of the blood and into its cells

Answer 4

Thyroid

Question 5

A membrane is said to be _ permeable if it lets some things pass through it, but does not allow other things to pass

Answer 5

Selectively

Question 6

The movement of a vacuole our of the cell

Answer 6

Exocytosis

Question 7

A homogenous mixture where one substance is dissolved into another

Answer 7

Solution

Question 8

A type of endocytosis where larger substances are brought into the cell by forming vacuoles at the cell membrane

Answer 8

Phagocytosis

Question 9

Receptor — endocytosis occurs when a substance bunds to a receptor protein and cause another substance to be taken into the cell via vessel s formation

Answer 9

Mediated

Question 10

If a plant cell is placed in a hypertonic solution

Answer 10

Plasmolysis

Question 11

If an animal cell is placed in a hypertonic solution ___ occurs

Answer 11

Crenation

Question 12

The sodium/ potassium pump is found in large numbers in these kind of cells

Answer 12

Nerve

Question 13

Carrier proteins are ___ meaning they only carry one type of particle

Answer 13

Specific

Question 14

Refers to a solution that is less concentrated when compared to another solution

Answer 14

Hypotonic

Question 15

The substance that does the dissolving in a solution

Answer 15

Solvent

Question 16

__ sized molecules tend to produce higher rates of diffusion

Answer 16

Smaller

Question 17

_ proteins catalyze chemical reactions on the cell membrane

Answer 17

Enzymatic

Question 18

__ proteins cause a change up the cell membrane when a specifically shaped molecule bonds in its binding site

Answer 18

Receptor

Question 19

The diffusion rate can be increased by raising the __ which in turn increases the speed at which particles are moving

Answer 19

Temperature

Question 20

Active transport is able to move molecules _ the concentration gradient

Answer 20

Against

Question 21

When solution on either side of a membrane are the same concentration there is _ net movement of water or solute across the membrane

Answer 21

No

Question 22

Turgor pressure is important to plant cells because as their cells start to lose turf or pressure the plant will start to__

Answer 22

Wilt

Question 23

The substance that is being dissolved in a solution

Answer 23

Solute

Question 24

A _ protein uses tap to change shape to move molecules across the cell membrane

Answer 24

Carried

Question 25

This is a special type of diffusion where water is the substance that is moving

Answer 25

Osmosis

Question 26

Water fearing - molecules which do not mix well with charged or polar molecules

Answer 26

Hydrophobic

Question 27

Refers to a solution that is the same concentration when compared to another solution

Answer 27

Isotonic

Question 28

A __ protein only passes part way through the lipid bilayer of the cell membrane

Answer 28

Peripheral

Question 29

This type of protein requires ATP as an energy source

Answer 29

Active

Question 30

A carbohydrate chain attached to a lipid molecule in the cell membrane

Answer 30

Glycolipid

Question 31

Water loving - molecules which mix well with charged or polar molecules

Answer 31

Hydrophobic

Question 32

The rate of diffusion can be increased by increasing the __ gradient

Answer 32

Concentration

Question 33

This occurs when there is a concentration gradient across a membrane and only water is able to pass through the membrane

Answer 33

Osmotic pressure