you are ... sighted if you have concave lenses

you are ... sighted if you wear convex lenses

if the lens is fat in the middle it is a ... lens

a convex lens is ... in the middle

... lens put the rays apart

convex lens put the rays ...

... lens shrinks the image

concave lens ... the image

if you are short-sighted your eyeball is too ...

if your eyeball is too small your ...

you are ... if the image is focused behind the retina

if the image is focused in front of the retina you are ...

what is the first part of the ear

... starts to beat and passes it on to the ossicles

the ossicles passes on the vibration to the ... in liquid form

the cochlea passes it on to the ... nerve which is in the brain

the iris is the ...

the ... contains cells which are light sensitive
(where the image is focused)

the cornea ... the ...

the ... is made smaller or bigger by the ...

the optic nerve focuses light onto the ...

draw an ocilliscope graph with the parts labelled

osilliscope graph- is the sound is deep and loud what are the waves going to look like

... is where gas exchange takes place

tidal volume is the ... amount of air you can breathe in and out of your lungs

... air us the maximum amount of air you can breathe in and out if your lungs

training makes the lungs more effective at supplying the ... with oxygen

... enters the blood whilst ... leaves

glucose and oxygen are carried by the bloodstream to the ...

the windpipe is:
flexible
not too weak nor strong
not breakable
made of ...

capillaries grow around the ...

alveoli is very ...

alveoli have a ... surface area

... carries out gas exchange

alveoli have a lot of blood ...

name the three types of enzymes

amalyse is found in the:
pancreas
salivary glands
...

amylase turns starch into ...

... is found in the:
stomach
pancreas
small intestine

protease turns proteins into ...

lipase is found in the:
...
small intestine

... turns lipids into fatty acids and glycerol

the liver produces ... which helps the digestion of fat

food is ... into the bloodstream which takes place in the small intestine

extra water is absorbed back into the body in the ...

the ... creates chemicals called the digestive enzymes

what are the two types of respiration

anaerobic
glucose (arrow) ... acid and energy

anaerobic
there is no ... involved

anaerobic
a build up of lactic acid can cause a ...

in anaerobic less/more energy is produced the aerobic

in anaerobic ... is broken down fully

aerobic
glucose + oxygen (arrow) ... + carbon dioxide + energy

aerobic
... energy is produced

aerobic creates water and ... which we don't need

name the three things atoms contain

protons have a .. charge and the electrons have a negative charge making the atom neutral

when atoms are chemically joined they become an ...

when two ... are chemically joined it becomes an compound

elements can have up to ... shells

when atoms chemically join a reaction is produced as electrons are joining onto the opposite ...

atoms have a nucleus which is made up of protons and ...

protons have the same number as ...

neutrons have no ...

you find out the ... by subtracting the big number from the small

periodic table
the big number is always going to be the ...

the small number is the protons which is equal to the ...

smoking can cause the ... of ... to be damaged and prevent it from doing its job

what is the job of cilia?
what can prevent this from happening?