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 faeces 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 cause 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 works.
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 faeces.
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 your body needs to survive, provided by food.
Obese
Extremely overweight.
Passive smoking
Breathing in other people’s smoke.
Protease
Enzyme that breaks down proteins into amino acids.
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.
Stomach
Organ where food is churned with digestive juices and acids.
Unit of alcohol
10 ml of pure alcohol.
Villi
Tiny projections in the small intestine wall that increase the area of absorption.
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.
