B1 - Keywords and Definitions

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  • Created by: Curlot
  • Created on: 24-05-14 14:51
Malnourished
Having an unbalenced diet
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Metabolic Rate
The rate at which all chemical processes in your body's cells are carried out.
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Cholesterol
A fatty substance that is found ub all cells of the body.
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Deficiency diseases
A disease caused by the lack of an essential element in the diet.
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Pathogens
A disease causing microorganism
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Bacteria
A single celled microoranism that has no nucleus
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Toxins
A poison produced by a living organism
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Anitbodies
A proteing produced in the body by the immune system to kill particular pathogens
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Vaccine
A liquide preparation containing inactie or dead pathogens, used to make the body produce antibodies to protect against disease.
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Semmelweiss
A doctor who recognised the importance of good hygiene in hospitals
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Mutate
A spontaneous change in the genetic material of a cell.
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Sterilisation
The process of making something free from all microorganisms
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Receptors
Cells found in the sense organs e.g Eyes,Ears & Nose
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Neurones
A type of specialised cell that transmits electrical messages or nerve impluses.
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Effectors
Part of the body that produces a response to a stimuli
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Glands
An organ that secretes substances
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Stimuli
Change in an environment
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Synapse
The gap between 2 neurones
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Reflex actions
An involuntary action
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Hormones
A regulatroy substance that stimulates cells o tissues into action; prodcued by a gland
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Pituitary Gland
A small gland at the base of the brain which produces hormones
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Menstrual cycle
The monthly cycle of hormonal changes in a women
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FSH
A hormone that stimulates hte ovaries to produce oestrogen
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Oestrogen
A hormone secreted by the ovaries the inhabits the production of FSH and cuases the production of LH
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LH
A hormone that stimulates the release of an egg in the menstrual cycle
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IVF
A process where an egg in fertilised by sperm outiside the body
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Gravitropism / Geotropism
A plant's growth in response to gravity
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Tropism
A grrowth in repsonse to a stimulus
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Auxin
A growth hormone produced in plants
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Photoropism
A plant's growth in response to light
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Statins
A drug used to help lower cholesteral levels in the blood
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Drugs
A chemical substance that alters the way the body works
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Carcinogens
A substance that causes cancer.
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Fetus
A unborn baby
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Adaptations
The gradual change of a particular organism over the generations to become better suited to an environment
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Extremeophiles
An organism that can live in very extreme environments
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Predetors
An animal that hunts, kills and eats other animals
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Biomass
Amount of biological material; the mass of a plant or animal without the water content
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Aeorbic
With oxygen
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Detritus
Organic material from dead and decomposing plants and animals
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Chromosomes
Long molecules found in the nucleus of all cells ; made from DNA
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Gametes
A specialised sex cell formed by meisosis
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Sexual Reproduction
Where new individuals are produces that aren't genetically identical to the parents ; fusing of gametes involved
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Asexual resproduction
Where new individuals are formed identical to their parents
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Fertilisation
The fusion of male and female gametes
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Fossils
The remains of animals or plants preserved in rock
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Natural Selection
The survival of indivdual organisms that are best suited to their environment
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Other cards in this set

Card 2

Front

The rate at which all chemical processes in your body's cells are carried out.

Back

Metabolic Rate

Card 3

Front

A fatty substance that is found ub all cells of the body.

Back

Preview of the back of card 3

Card 4

Front

A disease caused by the lack of an essential element in the diet.

Back

Preview of the back of card 4

Card 5

Front

A disease causing microorganism

Back

Preview of the back of card 5
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