Need to Feed
The passage of undigested material out of the digestive system
What is Elimination?
The place where the first stage of digestion takes place
What is the Oral Cavity?
Organic molecules required in the diet in small amounts
What are vitamins?
The process of breaking food down into molecules small enough to absorb.
What is digestion?
Glands that deliver saliva to lubricate food
The uptake of nutrients by body cells
What is Absorption?
This organ stores food and secretes gastric juice that converts meals into acid chyme
What is the stomach?
Two categories of vitamins
What are fat-soluble and water-soluble?
Aquatic animals that sift small food particles from the water.
What are suspension feeders?
The throat; the junction that opens to both the esophagus and the trachea
What is the pharynx?
The method by which food particles are engulfed by phagocytosis
What is Intracellular digestion?
The major organ of digestion and absorption, its first portion is the duodenum
What is the Small Intestine?
Meat, eggs, and cheese; items that provide all the essential amino acids
What are "complete" proteins?
Animals that suck nutrient-rich fluid from a living host.
Valves that regulate the movement of material between compartments.
What are sphincters?
Has specialized regions that carry out digestion and absorption in a stepwise fashion
What is a complete digestive tract/What is the alimentary canal?
This liquid destroys nonfunctional red blood cells, is stored in the gallbladder and produced in the liver
What is Bile?
The number of amino acids that animals require.
What is 20?
Splits food into small molecules that can pass through membranes; these are used to build larger molecules.
What is chemical digestion?
Blocks entry to the trachea
What is the epiglottis?
Use of stored fat and carbohydrates, break down of own muscle proteins, loss muscle mass, suffering protein deficiency of the brain, death, or suffer irreversible damage
What are the effects of undernourishment?
Carries nutrient-rich blood from the capillaries of the villi to the liver and then to the heart.
What is the function of the hepatic portal vein?
In chemical digestion, this process splits bonds in molecules with the addition of water.
What is enzymatic hydrolysis?
First portion of the small intestine, where chyme from the stomach mixes with digestive juices from the pancreas, liver, gallbladder, and the small intestine itself.
What is the duodenum?