Plasma Membrane

Question 1

Plasma membrane is found where

Answer 1

Outside every cell

Question 2

Plasma membrane controls what

Answer 2

The molecules that enter and leave the cell

Question 3

The base structure is made up of what

Answer 3

Phospholipids

Question 4

A phospholipids is made up of

Answer 4

Glycerol Molecules With two fatty acid chains

Question 5

The fatty acid chains are made up of

Answer 5

Carbon hydrogen

Question 6

Because the molecules are made of carbon an hydrogen the have

Answer 6

No charge and insoluble in water

Question 7

The fatty acids form what of the molecule

Answer 7

The tail

Question 8

This is said to be what

Answer 8

Hydrophobic

Question 9

The phosphate group however has a charge and is what in Water

Answer 9

Soluble

Question 10

Because it is soluble it forms the what of the molecule

Answer 10

Head

Question 11

This is said to be hydrophilic Which means I is

Answer 11

Water loving

Question 12

In the membrane phospholipids will pack together to form a double layer also known as

Answer 12

Bilayer

Question 13

The heads are in what with the water

Answer 13

In contact

Question 14

There is water surrounding all cells and a well as in what

Answer 14

Cytoplasm

Question 15

The tails are found where

Answer 15

In the middle of the membrane away from the water

Question 16

Lipid soluble molecules can pass through what

Answer 16

The phospholipid bilateral

Question 17

What three things can pass through the phospholipid bilayer

Answer 17

Oxygen carbon dioxide and water

Question 18

The reason why other ions can’t pass through the membrane

Answer 18

It is said to be partially permeable

Question 19

Phospholipids are not just molecules found in a membrane they have what scattered around

Answer 19

Protiens

Question 20

Proteins that pass all the way through the phospholipids are called

Answer 20

Intrinsic protiens

Question 21

Some of these protiens act as carriers to transport soluble substances across the

Answer 21

Membrane

Question 22

Cystic fibrosis have faulty proteins in the membrane what ion dose not transport

Answer 22

Chloride

Question 23

Other proteins are called

Answer 23

Extrinsic protiens

Question 24

Extrinsic proteins do what

Answer 24

These give mechanical support to the membrane or act as cell receptors

Question 25

What do some of these proteins have

Answer 25

Carbohydrate chainsaw attached to them

Question 26

Proteins with carbohydrates in them are called

Answer 26

Glycoprotiens

Question 27

Glycoproteins act as what

Answer 27

Antigens allowing cells to recognise each other

Question 28

Carbohydrate may connectto phospholipids forming

Answer 28

Glycolipids

Question 29

What us scattered among the phospholipids are

Answer 29

Cholesterol

Question 30

What dose cholesterol do

Answer 30

Stables re membrane

Question 31

The molecules are arranged in a membrane called

Answer 31

Fluid mosaic