Cell Membrane & Transport Review Crossword

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 out of the cell

Answer 6

exocytosis

Question 7

a homogeneous 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 binds to a receptor protein and causes another substance to be taken into the cell via vesicle formation

Answer 9

mediated

Question 10

if a plant cell is placed in a hypertonic solution, _____ may occur

Answer 10

plasmolysis

Question 11

if an animal cell is placed in a hypertonic solution _____ may occur

Answer 11

Crenation

Question 12

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

Answer 12

Nerve

Question 13

Carrier proteins are ____, meaning they only carry one type of particle

Answer 13

Hypotonic

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 a higher rate of
diffusion

Answer 16

Smaller

Question 17

______ proteins catalyze chemical reactions on the cell membrane

Answer 17

Enzymatic

Question 18

______ proteins cause a change to the cell membrane when a specifically shaped molecule binds 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 solutions 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 turgor 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 ATP to change shape to move molecules across the cell membrane

Answer 24

Carrier

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 that 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 partway through the lipid bilayer of the cell membrane

Answer 28

Peripheral

Question 29

This type of protein transport 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 that mix well with charged or polar molecules

Answer 31

Hydrophilic

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

Question 34

A cell ____ protein has glycoproteins attached to it which are unique to each organism and aid in immune system recognition

Answer 34

Recognition

Question 35

This molecule is the energy currency of the cell

Answer 35

ATP

Question 36

Movement of molecules along a concentration gradient

Answer 36

Diffusion

Question 37

A carbohydrate chain attached to a protein in the cell membrane

Answer 37

Glycoprotein

Question 38

The movement of a vacuole into the cell

Answer 38

Endocytosis

Question 39

An ____ protein passes all the way through the lipid bilayer of the cell membrane

Answer 39

Integral

Question 40

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

Answer 40

Hypertonic

Question 41

When the movement of molecules does not require additional energy input, it is called ____

Answer 41

Passive

Question 42

If a plant cell is placed in a hypotonic solution, an increase of ____ pressure will develop

Answer 42

Turgor

Question 43

A _____ protein allows a particular ion or molecule to pass through it with the concentration gradient and without the use of ATP

Answer 43

Channel