Digestive System II

By the end of this lesson, you will be able to:

• Explain the processes of digestionDigestion is the breakdown of large insoluble food compounds into small water-soluble components so that they can be absorbed into the blood plasma. In certain organisms, these smaller substances are absorbed... More and absorptionAbsorption is the movement of digested food molecules from the digestive system into the blood (glucose and amino acids) and lymph (fatty acids and glycerol). The small intestine absorbs most of... More in lower animals
• Compare and contrast different types of digestive systems
• Describe the ways in which organs work together to digest food and absorb nutrients
• Explain the specialized functions of the organs involved in processing food in the body
• Explain the feeding mechanisms in protozoa and hydra and other animals
• Discuss the modifications and mechanisms of feeding of some animals