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16 Cards in this Set

  • Front
  • Back
Define ingestion
Eating or taking in food
Define digestion
breaking down of food into simple soluble components which can be directly used by the cells of the body
Define absorption
When digested food passes into the blood stream
Define egestion
Undigested food thrown out of the body in the form of faeces or stools.
Name the different kind of teeth in humans
8 incisors
4 canines
8 premolars
12 molars
How many of each kind of teeth does an adult human have?
incisors (8)
canines (4)
pre-molars (8)
molars (12)
What kind of teeth does a baby lack?
What are the teeth of a baby called?
milk or temporary teeth
What are the teeth of an adult called?
permanent teeth
Why does a dog have large canines?
dog is carnivorous.
Canines used for tearing meat
Why does a rabbit have long incisors?
rabbit is herbivore.
incisor is used to tear grass/leaves
How many sets of salivary glands do we have?
three sets
Define saliva
a mixtures of a slimy substance called mucus and enzymes.
Define enzyme
An enzyme is a substance produced by cells of a living organism which helps certain reactions to take place easily.

Enzymes are biological catalysts, i.e. they help a reaction to take place remain unchanges after the reaction.
What is a catalyst?
CAtalysts help a reaction to take place, but remain unchanged after the reaction.
what does the saliva do to te fodd in the mouth?
The mucus softens the food.
Enzyme in the saliva helps to break down the starch in the food into sugar.
The tongue moves the food from side to side and rolls it into a ball.