organisation and digestive system

levels of organisation

first it is cells then it is tissues which goes into organs and and then organ systems and finally organisms

types of tissues: glandular, epithelial covers organs and muscle tissue contracts

function

to break down large insoluble molecules into small soluble molecules

mouth, the salivary glands produce amylase

enzymes

gullet

stomach does mechanical digestion and has muscle tissue

small intestine absorbtion into the blood

large intestine absorbs water back into the blood

rectum is where feces is stored

anus is where feces has left the body

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biological catalysts improve the rate of reactions

factors

temperature (37 degrees) and pH7

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pro-tease is made in the stomach

pancreas produces enzymes

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liver has bile that emulsiphies lipids