effects of smoking

Question 1

what is the addictive drug in tobacco smoke

Answer 1

nicotine

Question 2

there are at least __ ___________ in tobacco smoke including tar, these are chemicals which can alter the DNA and increase risk of cancer

Answer 2

17 carcinogens

Question 3

smoking increases the risk of cancer which is

Answer 3

the rapid uncontrolled cell growth

Question 4

tobacco smoke contains ______ ________ which permanently binds to the haemoglobin forming __________________ reducing the amount of oxygen being transported by the blood

Answer 4

carbon monoxide
carboxyhaemoglobim

Question 5

in healthy lungs the linings of the trachea and bronchi are

Answer 5

specialised to prevent dirt and bacteria entering the lungs

Question 6

goblet cells produce mucus which

Answer 6

traps dust and pathogens

Question 7

the cilia of the lining cells move transporting the mucus

Answer 7

up the airways where it is then swallowed

Question 8

chemicals in tobacco smoke destroy _____ reducing their number, at the same time mucus production will increase. the mucus cannot be moved out of the airways quickly so it ______ __ causing _______ _____ and increases the risk of infection

Answer 8

cilia
builds up
smokers cough

Question 9

__________ is a disease resulting from the build up of in refuted mucus in the bronchi and bronchioles

Answer 9

bronchitis

Question 10

smoke can also reach the alveoli damaging them: the alveoli walls break down in places and fuse together forming larger irregular air spaces this ___ the surface area for gas exchange so ____ oxygen diffuses into the blood, this disease is called _________ and kills around 20k people in Britain per year

Answer 10

decreases
less
emphysema