Make Up Test

Question 0

A lower concentration of water inside of the cell is what type of solution?

Answer 0

Hypotonic

Question 1

Which part of the membrane determines which particles may pass?

Answer 1

Proteins

Question 2

Which part of the membrane is non-polar?

Answer 2

Fatty acids

Question 3

What is the head of the phospholipid made of?

Answer 3

Phosphates

Question 4

What part of the phospholipid is toward the outside of the membrane bilayer?

Answer 4

Phosphates

Question 5

Membranes that need to be more fluid or moveable needs lots of what type of material?

Answer 5

Lots of unsaturated fatty acids

Question 6

Which method of moving materials across a membrane uses energy?

Answer 6

Osmosis

Question 9

What method of moving materials across a membrane involves water going from an area of high concentration to an area of low concentration?

Answer 9

Osmosis

Question 10

What characteristic of membranes do arctic animals need?

Answer 10

Lots of unsaturated fatty acids

Question 11

“All particles, living & non-living, move constantly in random patterns” explains ________

Answer 11

Brownian motion

Question 14

Transport of large particles into the cell is called

Answer 14

Endocytosis

Question 15

Transport of a large particle out of the cell is called______

Answer 15

Exocytosis

Question 16

What part of the plasma membrane carries out most of the functions of the membrane?

Answer 16

proteins

Question 18

A higher concentration of water inside of the cell is what type of solution?

Answer 18

Hypertonic

Question 19

An equal concentration of water inside and outside of the cell is what type of solution?

Answer 19

Isotonic

Question 20

“No further change, even though the particles continue to move” explains _____

Answer 20

Dynamic equilibrium

Question 21

What property of a membrane allows different cells to carry on different activities within the same organism?

Answer 21

Selective permeability

Question 22

Particles moving from an area of high concentration to an area of low concentration is called____

Answer 22

Concentration gradient

Question 23

Particles moving from an area of low concentration of to an area of high concentration is called____

Answer 23

Active transport

Question 24

What is the tail of the phospholipid made of?

Answer 24

Fatty acids

Question 25

Each layer of the membrane is a sheet made mainly of what type of molecules?

Answer 25

Phospholipids

Question 26

What type of molecule has the function of making the plasma membrane more stable?

Answer 26

Cholesterol

Question 27

What method of moving materials across a membrane uses transport proteins?

Answer 27

Facilitated diffusion

Question 29

Which method of moving materials across a membrane goes against the concentration gradient?

Answer 29

Active transport

Question 32

Which part of the membrane acts as a marker to other chemicals so your immune system can distinguish between your cells and those of a pathogen?

Answer 32

Proteins

Question 33

What method of moving materials across a membrane uses transport proteins with facilitated diffusion?

Answer 33

Passive transport

Question 34

Where would oxygen diffuse across a membrane?

Answer 34

Phospholipids