Can make their own food by chemosynthesis or photosynthesis
Must eat preformed organic nutrients
Ameba, Paramecium: Intracellular
Digestion inside a vacuole
Ameba engulfs by phagocytosis
Paramecium ingests through an oral groove
Both Intracellular And Extracellular within a gastrovascular cavity
Chemical in the intestine and phyiscal in gizzard. This very similar to birds.
Typhlosole in the intestine increases surface area for absorption into the blood
Chemicals are secreted from the Gastric Caeca in the stomach and from the salivary glands.
Physical with chewing and chitinous plates inside the gizzard.
Dissolving in saliva, chewing, tearing and ripping using the teeth.
This increases the surface area of the food
What is peristalisis ? The movement of food along the digestive tract.
Carbohydrate Begins with salivary amylase in the mouth
Protein Begins in stomach with gastric protease
Lipids Begins in small intestine with lipase
Remember the liver secretes bile and NO enzymes. Bile does help to emulsify fats by breaking them into small pieces.
Like the way dish detergent breaks up fat in the sink. This is a physical change.The Villi are fingerlike projections in the small intestine that increase the surface area for absorbtion. By the time food gets to the large intestine digestion has been completed.
Label the parts of this villus. Know where the fatty acids and glycerol are absorbed. (lacteal) Also know where the amino acids and monosacharrides are absorbed. (cappilary)
Nutrition Explain how the salivary glands, stomach, pancreas, and liver aid in the process of digestion. (Use terms like hydrolysis, enzymes, and bile in your answer