Biology Unit 1

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Pathogens
any microorganism that causes diease.
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Correlation
When a change in one variable is refelcted by a change in the second variable.
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Epidermiology
The study of the incidence (number of cases) and pattern of a diesase with a view to finding the means of preventing and controlling it.
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Risk
a measure of the probablitly that damage to health will occur as a result of a given hazard.
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Emphysema
a diesease in which the walls of the alveoli break down, reducing the surface area for gaseous exchange, thereby causing breathlessness in the patient.
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Osteoarthitis
the degeneration of the cartilage of the joints, causing pain and stiffness of these joints.
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Oesphagus
carries food from mouth to stomach. it is therefore adapted for transport than for digestion or absorption. made up of a thick muscular wall.
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Stomach
a muscular sac with a inner later that prduces enzymes. Its role is to store and digest protein . other glands in the stomach wall produce mucu. the muscus prevents the stomach being digested by its own enzymes.
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small intestine
long muscular tube. food is further digested by enzymes that are produced by its walls and lands that pour thier secretions into it. inner walls folded into villi.
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large instentine
absorbs water. most of water that is reabsorbed comes from secretions of the many digestive glands. the food within the large intestine becomes drier and thicker and forms faeces.
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rectum
final section of the intestines, where faeces is stored before being removed.
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pancreas
land gland situated below the stomach called pancreatic juicethe secreation contains preteases to pigest proteins, lipase to digest lipids and amylase to digest starch.
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Hydrolysis
the splitting of molecules by adding water to the chemical bonds that hold them together
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Hydrolases
the enzymes sued in hydrolysis
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carbohydrases
break down carbohydrates, ultimately to monosaccharides.
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Lipases
Break down lipids into gylcerol and fatty acids.
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Proteases
break down proteins, ultimately to amino acids
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Assimilation
once food molecules
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Other cards in this set

Card 2

Front

When a change in one variable is refelcted by a change in the second variable.

Back

Correlation

Card 3

Front

The study of the incidence (number of cases) and pattern of a diesase with a view to finding the means of preventing and controlling it.

Back

Preview of the back of card 3

Card 4

Front

a measure of the probablitly that damage to health will occur as a result of a given hazard.

Back

Preview of the back of card 4

Card 5

Front

a diesease in which the walls of the alveoli break down, reducing the surface area for gaseous exchange, thereby causing breathlessness in the patient.

Back

Preview of the back of card 5
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