BIOL 211 – CELLULAR AND ORGANISMAL BIOLOGY

Lecture Outline for April 15, 2005

 

Topic: animal nutrition

Chapter 37  some from all sections

Figures used in lecture: 37.2, 37.6, 37.10, 37.12, 37.13, 37.15

Additional Resources:

                Animal Digestive Systems

                Dietary Guidelines for Americans

 

 

Animal Nutrition

Define/explain: heterotrophs, suspension feeders, deposit feeders, herbivores, predators, parasites, intracellular digestion, extracellular digestion, essential amino acids, vitamins, essential elements, electrolytes, alimentary canal, accessory organs, mechanical digestion, chemical digestion, bile, lipase, peristalsis, reabsorption

 

You should be able to:

1.  List five types of feeding mechanisms used by animals and give an example of an animal for each mechanism.

1.  Explain how each of the following is important to animal nutrition: essential amino acids, vitamins, essential elements, electrolytes

2.  Describe the path of food through the human digestive system.  Your explanation should include all organs – mouth, esophagus, stomach, small intestine, large intestine – and provide a function for each organ.

3.  Explain the role of each of the accessory organs – liver, pancreas, gall bladder.

4.  Describe the digestion and absorption of each of the major categories of nutrients – carbohydrates, proteins, amino acids

5.  Describe the function of the major digestive enzymes including salivary amylase, pepsin, lipase, pancreatic amylase

 

Today’s Lecture (4-15-05)

 

Five feeding methods

1. Suspension feeding

 

 

2. Deposit feeding

 

 

3. Herbivory

                herbivores:

 

 

4. Predation

                predator:

 

                carnivore:

 

                omnivore:

 

 

5. Parasitism

                endoparasite:

 

                ectoparasite:

 

 

Types of Digestion

Extracellular digestion:

 

 

Intracellular digestion:

 

 

Human Nutrition

Nutrient:

 

Major nutrients:

 

Essential amino acids:

 

Vitamins:

 

Essential elements:

 

Electrolytes:

 

 

Three processes within human nutrition:

Mechanical digestion:

 

Chemical digestion:

 

Absorption:

 

Human Digestion

Mouth

salivary amylase: 

 

 

Esophagus

peristalsis

 

 

Stomach

pepsin

 

 

Small intestine

 

 

Large intestine

               

               

Accessory Organs

liver –

 

Gallbladder 

 

pancreas