type, of group, such as protein, needed for certain body process.
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nutrient
substance in food which we need to eat to stay healthy (e.g. protein).
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balanced diet
intake of foods that provide the correct nutrients in the correct portions.
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starch
a large molecule made by plants as a form of food storage
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sugar
sweet-tasting compound of carbon, hydrogen and oxygen - such as glucose or surcose
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fat
body tissue, which acts as an energy store; a food group
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protein
food group important for growth
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risk
likelihood of a hazard causing harm
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energy
something has energy in it if it has the ability to make something happen when that energy is transfered
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respiration
process in living things, oxygen is used to release energy from food
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kilojoule (KJ)
1000 joules (J)
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joule (J)
unit for energy
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obesity
medical condition in which the amount of body fat is so high that it harms health
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starvation
severe long-term shortage of energy from food
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malnutrition
health condition caused by insufficient intake of nutrients
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deficiency
disease ~ illnes caused by lack of certain nutrients
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vitamin
important nutrient needed in very small quantities
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scurvy
deficiency caused by lack of vitamin c
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rickets
deficiency caused by lack of vitamin d
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anaemia
deficiency disease caused by lack of iron
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digestion
breakdown of food in order to obtain energy
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digestive system
a group of organs that together enable digestion of food
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chemical energy
energy stored in bonds between atoms, which becomes available when atoms are rearranged in a chemical reaction
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circulatory system
the heart and blood vessels that transport essential substances around the body in blood
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faeces
solid body waste (poo) released through the anus
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adaption
gradual developmet that helps survival
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oesophagus
contains rings of muscle that contract behind the bolus to move the food along
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stomach
part of digestive sysem where most food breakdowns occur because it is muscly and contains acid
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pancreas
organ of the digestive system that produces enzymes
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small intestine
contains muscles to kove food along the tube and enzymes to complete digestion. Has thin walls and a good blood supply to help absorption of nutrients into blood.
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amylase
enzyme that digests starch
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catalyst
substance which speeds up chemical reaction
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lungs
main organs (x2) of breathing system
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ribcage
protects lungs and heart
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diaphragm
musculur layer at base of chest cavity (under ribcage)
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pressure
force on certain area
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gut
digestive system
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flora
bacteria in the intestines
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probiotic
containing helpful bacteria
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antibiotic
drugs which kill bacteria
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vital capacity
volume of the lungs
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independent variable
what you change in an experiment
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dependent variable
what you measure in an investigation
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control variable
what you keep the same in an ivestigation
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Other cards in this set
Card 2
Front
substance in food which we need to eat to stay healthy (e.g. protein).
Back
nutrient
Card 3
Front
intake of foods that provide the correct nutrients in the correct portions.
Back
Card 4
Front
a large molecule made by plants as a form of food storage
Back
Card 5
Front
sweet-tasting compound of carbon, hydrogen and oxygen - such as glucose or surcose
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