Is nourishment - the nutrients and energy needed for health and growth.
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Balanced Diet
One that containes all the nurients required for health in approapriate proporions.
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Obesity
When a person is 20% or more heavier than the recommended weight for their height.
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BMI
Mass in kg/ (height in m)^2.
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Lipoproteins
A combination of lipids, cholesterol and protein used to transport fats and cholesterol around the body.
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Selective breeding
When humans select the individual organisms that are allowed to breed according to chosen characteristics.
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Fertiliser
Minerals needed for plant growth, which are added to soil to improve its fertility.
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Pesticide
A chemical that kills pests.
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Fungicide
A chemical that kills fungi.
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Antibiotic
A chemical that kills or prevents reproduction in bacteria.
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Health
A state of mental, physical and social wellbeing, not just the absence of disease.
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Disease
A departure from good health caused by a malfunction of the mind or body.
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Parasite
An organism that lives in or on another living thing, causing harm to its host.
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Pathogen
An organism that causes disease.
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Transmission
The way in which a parasitic microorganism travels from one host to another.
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World health oranisation
Part of the united nations. it is the specialiased agency for health. Who's objective is the attainment by all people s of the highest possible level of health.
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Primary defence
Those that atempt to prevent pathogens from entering the body.
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Immune response
The specific response to a pathogen, which involves the action of the lymphocytes and the production of antibodies.
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Antigens
Molecules that stimulate an immune response.
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Antibodies
Proteins molecules that can identify and neutalise antigens.
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Specification
An antibody is specific to a particular antigen because of the shape of the various region. Each type of antibody has a different shaped variable region.
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Cell siganlling
The communication between cells that allows effective coordination of a resonse.
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Memory cells
Cells that circulate in the blood after an immune resonse. They speed up a resonse to a subsequent attack by the same pathogen.
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Lymphocytes
White blood cells that circulate around the body in the blood and lymph. B cells mature in the bone marrow, while Tcells originate in the bone marrow but mature in the thymus gland.
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Carcinogens
Chemicals that cause cancer.
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Chronic obstructive pulmonary disease (COPD)
A combination of disease including chronic bronchitis and emphysema.
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Atherosclerosis
The deposition of fatty substances in the walls of the arteries.
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Cardiovascular disease
A disease of the heart or circulatory ststem.
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Coronary heart disease (CGD)
Is a disease of the heart caused by malfunction of the coronary arteries.
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Sroke
The death of part of the brain due to a lack of blod flow to that part of the brain and the subsequent oxygen deficiency.
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Risk Factor
A factor that increases the chance or risk that a person will develop a disease.
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Epidemiology
The study of the distribution of a disease in populations, and the factors that influence its spread.
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Other cards in this set
Card 2
Front
Balanced Diet
Back
One that containes all the nurients required for health in approapriate proporions.
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