Undifferentiated cells capable of dividing by mitosis and differentiating to become specialised cells
myelin sheath
Fatty layer that surrounds the axon of a neurone, insulating it and speeding up nerve impulse transmission
Explain
Question which requires a justification in the answer - use the word because
Capillary
Type of bloodvessel with walls that are one cell thick to help with their function of exchange of materials between the blood and body cells, for example oxygen
Biotic
Livingfactors that affect a community of organisms, for example competition and predations
Insulin
Hormone produced by the pancreas, transported in the blood and acts on the target organs of the liver and muscles to reduce blood glucose levels
Translocation
The movement of sucrose around the plant through the phloem
Health
A state of complete physical,mental and social wellbeing and not merely the absence of disease or infirmity
Genetic engineering
A process which involves modifying the genome of an organism to introduce desirable characteristics
