Digestive Enzymes Flashcards
Chemical Digestion in Mouth
Amylase produced in salivary Glands
BReaksdown starch
Digestion of Proteins in Stomach
Proteins breakdown to Peptides
Using enzyme pepsin
Enzymes produced in pancreas but secreated in duodenum
Trypsin, Amylase, Lipase
Trypsin
Breaksdown proteins to peptides
Amylase
Breaks down starch to Maltose
Lipase
Breaksdown Lipids to fatty acids and glycerol
Dudenum walls secretes digestive enzymes
Maltase and Peptidase
Maltase
breaksdown Maltose to glucose
Peptidase
Breaksdown peptide to amino acids
Bile is produced in the…
Liver
Bile is stored in the…
Pancreas
Bile is used in the…
Duodenum
Adaptations of Villi
Contains lots of Microvilli - increases SA
1 cell thick - short diffusion distance
Surrounded by network of capillaries - increase conc gradient
Perstalsis
Muscles in the wall of the gut
Contract and relax to move food through gut
Arranged in circular rings and fibres
Stomach
Mechanical digestion - contraction of the stomach causes contents to mix - maximal enzyme contact
Stomach wall produced hydrochloric acid which kills bacteria on food
Mechnical digestion in Mouth
Food is broken down into smaller pieces by grinding of teeth
Role of Bile
Emulsfies large insoluble lipid globules into small soluble lipid globules
Neutralises stomach acid
Illeum
Digested products are absorbed into blood
Large Intestine
Colon and Rectum
Colon
Water is reabsorped
Rectum
Faces is stored
Oesophagus
Connects stomach to mouth
