893779
Description
Flashcards by Saarah Ahmed, updated more than 1 year ago
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Created by Saarah Ahmed
over 10 years ago
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| Question | Answer |
| you are ... sighted if you have concave lenses | long-sighted (cave is long) |
| you are ... sighted if you wear convex lenses | short-sighted |
| if the lens is fat in the middle it is a ... lens | concave |
| a convex lens is ... in the middle | thin |
| ... lens put the rays apart | concave (makes it fatter) |
| convex lens put the rays ... | closer |
| ... lens shrinks the image | convex |
| concave lens ... the image | enlarges |
| if you are short-sighted your eyeball is too ... | long |
| if your eyeball is too small your ... | long sighted |
| you are ... if the image is focused behind the retina | long-sighted (the image is too long) |
| if the image is focused in front of the retina you are ... | short sighted (too short to reach the retina) |
| what is the first part of the ear | ear canal |
| ... starts to beat and passes it on to the ossicles | ear drum ( instrument first one to beat ) |
| the ossicles passes on the vibration to the ... in liquid form | cochlea (shaped like a snails shell) |
| the cochlea passes it on to the ... nerve which is in the brain | auditory nerve |
| the iris is the ... | coloured part, made of muscle and controls the amount of light going into the eye |
| the ... contains cells which are light sensitive (where the image is focused) | retina |
| the cornea ... the ... | refracts light |
| the ... is made smaller or bigger by the ... | cornea iris |
| the optic nerve focuses light onto the ... | retina |
| draw an ocilliscope graph with the parts labelled | trough crest amplitude time period |
| osilliscope graph- is the sound is deep and loud what are the waves going to look like | wide and tall |
| ... is where gas exchange takes place | alveoli |
| tidal volume is the ... amount of air you can breathe in and out of your lungs | average |
| ... air us the maximum amount of air you can breathe in and out if your lungs | vital |
| training makes the lungs more effective at supplying the ... with oxygen | blood |
| ... enters the blood whilst ... leaves | oxygen enters carbon dioxide leaves |
| glucose and oxygen are carried by the bloodstream to the ... | muscles |
| the windpipe is: flexible not too weak nor strong not breakable made of ... | cartilage (practise spelling) |
| capillaries grow around the ... | alveoli |
| alveoli is very ... | small |
| alveoli have a ... surface area | large |
| ... carries out gas exchange | alveoli |
| alveoli have a lot of blood ... | veins |
| name the three types of enzymes | lipase protease amalyse |
| amalyse is found in the: pancreas salivary glands ... | small intestine |
| amylase turns starch into ... | sugars |
| ... is found in the: stomach pancreas small intestine | protease |
| protease turns proteins into ... | amino acid |
| lipase is found in the: ... small intestine | pancreas |
| ... turns lipids into fatty acids and glycerol | lipase |
| the liver produces ... which helps the digestion of fat | bile |
| food is ... into the bloodstream which takes place in the small intestine | absorbed |
| extra water is absorbed back into the body in the ... | large intestine |
| the ... creates chemicals called the digestive enzymes | pancreas |
| what are the two types of respiration | aerobic anaerobic (practise spelling) |
| anaerobic glucose (arrow) ... acid and energy | lactic |
| anaerobic there is no ... involved | oxygen |
| anaerobic a build up of lactic acid can cause a ... | cramp |
| in anaerobic less/more energy is produced the aerobic | less (no oxygen) |
| in anaerobic ... is broken down fully | glucose |
| aerobic glucose + oxygen (arrow) ... + carbon dioxide + energy | water |
| aerobic ... energy is produced | more |
| aerobic creates water and ... which we don't need | carbon dioxide |
| name the three things atoms contain | neutrons protons electrons |
| protons have a .. charge and the electrons have a negative charge making the atom neutral | protons are positive (p) electrons are negative (electro man in spiderman is evil - negative) |
| when atoms are chemically joined they become an ... | element |
| when two ... are chemically joined it becomes an compound | elements |
| elements can have up to ... shells | eight |
| when atoms chemically join a reaction is produced as electrons are joining onto the opposite ... | shell |
| atoms have a nucleus which is made up of protons and ... | neutrons |
| protons have the same number as ... | electrons |
| neutrons have no ... | charge (they are neutral) |
| you find out the ... by subtracting the big number from the small | neutrons |
| periodic table the big number is always going to be the ... | mass |
| the small number is the protons which is equal to the ... | electrons |
| smoking can cause the ... of ... to be damaged and prevent it from doing its job | hairs of celia |
| what is the job of cilia? what can prevent this from happening? | to sweep out all the mucus and dust.Smoking can stop this process from happening as the hairs will be damaged. |
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