biology topic 5

Alice Emilie Gray
Mind Map by , created over 5 years ago

Mind Map on biology topic 5, created by Alice Emilie Gray on 06/06/2014.

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Alice Emilie Gray
Created by Alice Emilie Gray over 5 years ago
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biology topic 5
1 CIRCULATORY SYSTEM
1.1 starting at the aorta...
1.1.1 O, arteries, goes to the capillaries in the body
1.1.1.1 DO, veins, goes to the vena cava
1.1.1.1.1 DO, pulmonary artery, to the lungs
1.1.1.1.1.1 goes to capillaries in lungs
1.1.1.1.1.1.1 O, pulmonary vein, goes to the heart.
2 DIGESTIVE SYSTEM
2.1 mouth-mixes w/ enzymes
2.1.1 oesophagus- carries food from mouth to stomach
2.1.1.1 liver - produces bile,, helps digest fats in small intestine
2.1.1.1.1 stomach - adds acids and enzymes, mixed up (churning)
2.1.1.1.1.1 gall bladder- stores bile
2.1.1.1.1.1.1 pancreas - produces enzymes that are released into the small intestines
2.1.1.1.1.1.1.1 small intestines - food digested by enzymes, food molecules are absorbed into blood
2.1.1.1.1.1.1.1.1 large intestines - some water absorbed, undigested food forms faeces that pass out of the..
2.1.1.1.1.1.1.1.1.1 anus.
2.1.1.2 peristalsis
3 VILLI
3.1 folded to create a larger surface area
3.2 large capillary network carries absorbed molecules rapidly away
3.3 inside body tissues
3.4 on top of each villi are micro villi which increase surface area more
3.4.1 for diffusion of soluble products of digestion
4 PREBIOTICS
4.1 encourage beneficial bacteria to grow to protect from diarrhoea
4.2 increasing evidence
5 PROBIOTICS
5.1 friendly bacteria
5.2 lactobacillus
5.3 claim to make you healthier
6 visking tubing as a model
6.1 investigates digestion
6.2 inside of tube is like a alimentary canal, inside is a mixture of starch and amylase
6.3 start - water around the tube
6.4 end - glucose has diffused out of the bag into the water

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