Biology:work
" Koalas do not have eyelids."
A Photo taken by Otterspoor of Stone Henge

Unit 13: Nutrition and Digestion

endoscopy image of normal stomach of a healthy 65-years old woman. (pylorus) Permission of patient to publish this image was obtained.Essential Question 1: How and why do organisms obtain nutrients?

Essential Question 2: What are the structures of the human digestive system and their functions?

 

 

Homework

To determine whether or not a warehouse is rodent infested,
1. At least three food storage bags must bear rodent urine stains of at least 1/4 inch diameter which penetrate to the product even though the product cannot be demonstrated to have been contaminated; or
2. At least two bags are rodent gnawed and at least five bags bear either rodent urine stains at least 1/4 inch in diameter, with or without penetration to the product, or two or more rodent pellets; or
3. The food in at least one bag in the lot contains rodent-gnawed material or rodent excreta or rodent urine, and at least five bags bear either rodent urine stains at least 1/4 inch in diameter or two or more rodent pellets.
The FDA Sec. 580.100 Food Storage & Warehousing - Adulteration - Filth (Domestic and Import) (CPG 7103.01) REGULATORY ACTION GUIDANCE - DOMESTIC:

Macaroni and noodle products are suitable for human consumtion if they average 225 insect fragments or less per 225 grams in 6 or more subsamples. (That works out to 1 insect fragment per gram.)
FDA

Class Notes in pdf

Study Guides: One page to Rule them all

Labs . Diagrams . Other Stuff

Questions of the week:Extra Work

CONTENT KNOWLEDGE OBJECTIVES

Initial Understanding:

  • Describe the nutritional needs of human beings.
  • Describe the structures and associated functions of the human digestive system.

Developing an Interpretation:

  • Demonstrate the necessity for digestion and compare the variety of designs employed by organisms to accomplish this function defending the suitability of these designs.

Making Connections:

  • Distinguish between and recognize the nutritional requirements of autotrophs and heterotrophs and compare the many ways organisms meet their nutritional needs.

Taking a Critical Stance:

  • Demonstrate knowledge of a healthy diet and how human beings can meet their nutritional needs.