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9 Cards in this Set

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  • Back
What is digestion?
the process by which large particles of food are broken down into small particles so it can pass through the gut lining into the blood stream
What is mechanical digestion?
this occurs mainly in the mouth and the cutting up and chewing of large pieces of food into small pieces
What is chemical digestion
this starts in the mouth and continues in different parts of the alimentary canal.enzymes are used to changed insoulable food molecules into soulable ones eg.starch in glucose
Where are digestive juices produced?
in the mouth, stomach, pancreas and in the small intestines
What do the juices contain and what do they do?
enzymes which are used to breakdown food by hydrolisys
Name 1 distinguishing feature of a mammal.
their dention, which is the shpae and arrangement of their teeth.this tends to vary according to what the animal eats
Can the lungs pump air into the body? If no give your reason
no the lungs cannot pump air into the body bcuz it is a soft tissue not a muscle.
What does most of the work of breathing?
the chest wall and the diaphragm which is a sheet of muyscles found at the base of the lungs
What shape is the diaphram when relaxed and contracts?
domed shaped when relaxed and it flattens when contracts