Here are more powerpoint slides to revise the topic on digestion. The 30 slides cover the following concepts:
- annotated diagram of the alimentary canal
- ingest, digest, absorb, assimilate, egest
- deficiency diseases-scurvy, osteoporosis, rickets, night blindness
- balanced diet
- sources, functions of protein
- sources, functions of lipids
- sources, functions of carbohydrates
- sources, functions of minerals, vitamins, roughage, water
- foot tests-Biuret test, grease spot test, iodine solution test, Benedict's test
- teeth for mechanical digestion
- stomach for protein digestion
- small intestine-where all classes of food are digested completely
- liver-storage, process food, production of urea by deamination
- pancreas-production of digestive enzymes
- large intestine-absorption of water
- rectum-storage of bacteria, undigested food and roughage
- enzymes are biological catalysts
- proteases-in stomach and pancreatic juice
- carbohydrase-in mouth and pancreatic juice
- lipase-in pancreatic juice
- final products of digestion-amino acids, fatty acids and glycerol, glucose
- enzymes have active site, lower activation energy and are protein in nature
- biological enzymes are involved in bread and alcohol making by yeast cells, removing stains in clothes by washing powders
- absorption, villi, microvilli
- assimilation- glucose for respiration and storage as glycogen, amino acids for making proteins for growth, making enzymes, making hormones, fatty acids and glycerol for making cell membrane, hormones, storage under the skin
- obesity, diabetes, heart disease due to over eating
- short questions
The Digestive System
View more OpenOffice presentations from Dr samuel Aylward.
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