health and lifestyle Flashcards
addiction
A need to keep taking a drug in order to feel normal.
alcoholic
A person who is addicted to alcohol
anus
Muscular ring through which feces pass out of the body.
balanced diet
Eating food containing the right nutrients in the correct amounts.
bile
Substance that breaks fat into small droplets.
carbohydrase
Enzyme that breaks down carbohydrates into sugar
molecules.
carbohydrate
Nutrient that provides energy
catalyst
Substance that speeds up a reaction without being used up
deficiency
A lack of minerals, that causes poor growth
depressant
A drug that slows down the body’s reactions by slowing down the nervous system.
digestion
Process where large molecules are broken down into small molecules.
digestive system
Group of organs that work together to break down food.
drug
Chemical substance that affects the way your body work
enzyme
Special protein that can break large molecules into small molecules.
ethanol
The drug found in alcoholic drinks.
fibre
Provides bulk to food to keep it moving through the
digestive system.
food test
Chemical test to detect the presence of particular nutrients in a food.
gullet
Tube that food travels down into the stomach.
hypothesis
An idea that is a way of explaining scientists’ observations.
large intestine
Organ where water passes back into the body, leaving a solid waste of undigested food called feces.
lipase
Enzyme that breaks down lipids into fatty acids and
glycerol
lipids
Nutrients that provide a store of energy and insulate the body.
malnourishment
Eating the wrong amount or the wrong types of food.
medicinal drug
Drug that has a medical benefit to your health
mineral
Essential nutrient needed in small amounts to keep you healthy
nutrient
Essential substance that you need to survive (found in food)
obese
Extremely overweight.
passive smoking
Breathing in other people’s smoke.
protein
Nutrient used for growth and repair.
recreational drug
Drug that is taken for enjoyment.
rectum
Feces are stored here, before being passed out of the
body.
small intestine
Organ where small digested molecules are absorbed into the bloodstream.
starvation
Extreme case of not eating enough food
stimulant
A drug that speeds up the body’s reactions by speeding up the nervous system.
stomach
Organ where food is churned with digestive juices and acids.
unit of alcohol
10 ml of pure alcohol.
vitamin
Essential nutrients needed in small amounts to keep you healthy.
withdrawal symptom
Unpleasant symptom a person with a drug addiction suffers from when they stop taking the drug.
