cell membrane and its function

Question 1

Regulates the movement of materials from one environment to the other.

Answer 1

function of cell membrane

Question 2

composition of cell membrane

Answer 2

phospholipid bilayer
different proteins
lipids
carbohydrates

Question 3

Transport raw materials into the cell and waste out of the cell.

Answer 3

function of cell membrane

Question 4

parts of a phospholipid bilayer

Answer 4

hydrophobic head
phosphate
fatty acid tail

Question 5

2 types of membrane protein

Answer 5

integral

peripheral

Question 6

integral aka as?

Answer 6

intrinsic/carrier protein

Question 7

peripheral aka as?

Answer 7

extrinsic/protein channels

Question 8

proteins that insert into the membrane

Answer 8

integral

Question 9

proteins in the surface; acts as receptors

Answer 9

peripheral

Question 10

types of integral proteins

Answer 10

uniporter
symporters
antiporter

Question 11

transports different types of molecules at the same time

Answer 11

symporters

Question 12

transport substances in a unidirectional manner

Answer 12

uniporter

Question 13

opposite of symporter

Answer 13

antiporter

Question 14

example of peripheral

Answer 14

glycoproteins in RBC

Question 15

Usually branched molecules of 15 or less sugar units.

Answer 15

carbohydrates

Question 16

bonded to lipids

Answer 16

glycolipids

Question 17

bonded to proteins

Answer 17

glycoproteins

Question 18

function

Answer 18

cell-to-cell recognition

Question 19

enhances membrane fluidity, makes the membrane less permeable to biological molecules.

Answer 19

Cholesterol

Question 20

energy form in the cell

Answer 20

atp

Question 21

does not require energy

Answer 21

passive transport

Question 22

requires energy

Answer 22

Active Transport

Question 23

• Passive movement of molecules

Answer 23

Simple Diffusion

Question 24

Diffusion of water

Answer 24

Osmosis

Question 25

High concentration to low concentration

Answer 25

Osmosis

Question 26

From high concentration to a region of low concentration

Answer 26

Simple Diffusion

Question 27

• Works well over short distances.

Answer 27

Simple Diffusion

Question 28

High water concentration = higher amount of water

Answer 28

osmosis

Question 29

Types of Solution in Osmosis

Answer 29

Isotomic Solution Hypotonic Solution Hypertonic

Question 30

Cell placed in distilled water results to burst

Answer 30

Cytolysis

Question 31

Cells placed in concentrated salt solution results to shrink

Answer 31

Plasmolysis

Question 32

Water channels; Special protein specialized for water

Answer 32

Aquaporins