Topic 3

Question 1

Non- self protein, foreign to the body

Answer 1

Antigen

Question 2

A defence protein, made by the body

Answer 2

Antibody

Question 3

A fluorescent chemical compound that can re-emit light upon light excitation

Answer 3

Fluorochrome

Question 4

Model used to describe the behaviour of the cell membrane

Answer 4

Fluid Mosaic Model

Question 5

What experiment demonstrates the fluidity of the cell membrane

Answer 5

Frye-Edidin Experiment

Question 6

Membrane protein of half of the bilayer are structally and functionally _________
from / as the other half

Answer 6

Distinct

Question 7

Way to see the difference in the bilayer of the cell membrane

Answer 7

Freeze - Fracture Technique

Question 8

The dominant lipids in cell membranes

Answer 8

Phospholipids

Question 9

What can affect membrane fluidity?

Answer 9

1. Temperature
2. Composition

Question 10

Proteins embedded in a phospholipid bilayer

Answer 10

Integral Membrane Protiens

Question 11

Proteins attached to membrane surfaces

Answer 11

Peripheral Membrane Proteins

Question 12

What attaches peripheral proteins to the membrane

Answer 12

1. Non-covalent bonds
2. Polar parts of integral proteins

Question 13

Key Functions of Membrane Proteins

Answer 13

1. Transport
2. Enzymatic Activity
3. Signal Transduction
4. Attachment / Recognition

Question 14

Smaller hydrophobic molecules go through ______ to get into the cell

Answer 14

Passive Transport

Question 15

Small unchanged polar molecules got through _______ to get the the cell

Answer 15

Active Transport

Question 16

Movement of substances across a membrane with concentration gradients

Answer 16

Simple Diffusion

Question 17

Simple Diffusion moves and does not move what?

Answer 17

Moves: small unchanged molecules

Does not move: large or changed molecules

Question 18

Movement of substances across a membranes with concentration gradients and the help of transporter proteins

Answer 18

Facilitated Diffusion

Question 19

Proteins that bind to specific solutes and undergo conformation changes to transport the substances across the membrane

Answer 19

Carrier Protiens

Question 20

Diffusion of water molecules across a selectively permeable membrane

Answer 20

Osmosis

Question 21

move substance against the concentration gradient

Answer 21

Active Transport

Question 22

Transport proteins that move a different two substances

Answer 22

Secondary Active Transport Proteins /
Con-transport Proteins

Question 23

Protein carriers that carry a single substance down its concentration gradient

Answer 23

Uniporters

Question 24

Protein carriers that carries one substance down it concentration gradient into the cell and uses that energy to move another substance against its concentration gradient into the cell.

Answer 24

Antiporter

Question 25

Protein carriers that carries one substance down it concentration gradient into the cell and uses that energy to move another substance against its concentration gradient out of the cell.

Answer 25

Antiporter

Question 26

Solution with a lot for solute

Answer 26

Hypertonic Solution

Question 27

Solution with little solute

Answer 27

Hypotonic Solution

Question 28

Solution with normals amounts of solute

Answer 28

Isotonic Solution

Question 29

Vesicle joins to plasma membrane and substances are released from the cell

Answer 29

Exocytosis

Question 30

Vesicle is created for the plasma membrane and substances are brought into the cell

Answer 30

Endocytosis

Question 31

Endocytosis defensive system against pathogens

Answer 31

Phasgocytosis

Question 32

Endocytosis where vesicles import water and other substances

Answer 32

Pinocytosis

Question 33

Endocytosis where vesicles import specific molecules based on receptors

Answer 33

Receptor-Mediated Endocytosis

Question 34

What is a signalling molecule called?

Answer 34

Ligand

Question 35

Extracellular signal molecules

Answer 35

Reception

Question 36

Surface receptors that receive the signals

Answer 36

Transduction

Question 37

Internal response pathways triggered when receptors bind a signal

Answer 37

Response

Question 38

What is the order of Signal Transduction?

Answer 38

1. Reception 2. Transduction 3. Response