Animal tissues, organs and organ systems Flashcards
what chemical is used to test for starch
iodine solution
what chemical is used to test for glucose
benedicts solution
what chemical is used to test for lipids
ethanol
what chemical is used to test for protein
biuret solution
what colour does iodine go when there is starch present
blue/ black
what colour does benedicts solution go when there is glucose present
tomato red
what colour does ethanol go when there is fat present
water goes milky
what colour does biuret solution go when protein is present
pale purple
what is a non communicable disease
a disease that is not spread from person to person
provide an example of a non communicable disease
coronary heart disease, cancer
what is a risk factor
increases the likelihood of someone getting a non - communicable disease
what is a medical risk factor
substances in the persons body or environment
what is a lifestyle risk factor
aspects of a persons lifestyles
give an example of a medical risk factor
high cholesterol
high blood pressure
diabetes
genetic factors
give an example of a lifestyle risk factor
obesity
smoking
alcohol
high fat diet
describe coronary heart disease
- fatty deposits build up on walls of the coronary arteries
- blood flow is restricted
- so less oxygen reaches heart muscle
- so heart muscle cannot respire
- this results in a heart attack
describe a stent
stents hold open blocked arteries
using a stent increases blood flow
this means more oxygen will reach the heart muscle
so the heart can respire
cons of stents
risk of infection, surgery and blood clotting
pros of stents
blocked arteries are held open, allows blood to flow to the heart
stays in play for a long time
rapid recovery
describe a statin
statins reduce cholesterol
they reduce the build up of fatty deposits in the coronary arteries
how is a statin used
it is a tablet you take instead of a mechanic device
pros of statins
reduces cholesterol, slows down the build up of the fatty deposits, increases blood flow to heart
cons of statins
people forget to take them
needs to be taken long term
side affects
takes a long while work
what is the role of the stomach in digestion
pummels the food with muscular walls
produces the protease enzyme pepsin
produces hydrochloric acid for two reasons
- to kill bacteria
- to give the right ph for protease enzyme to work