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BIO304: Human Physiology

Unit 13: Metabolism   All systems contribute to an organism’s metabolism. The digestive system absorbs nutrients such as glucose, lipids, and amino acids that can be used by body cells for energy. The endocrine system is involved in the uptake, storage, and use of these molecules. The heart pumps blood containing oxygen, which is needed by the body cells to carry out metabolic processes. Other systems in the body have roles in this process as well. In this unit, we will integrate our new understanding of each system to understand how they all work together to affect our metabolism and contribute to maintaining homeostasis.

Unit 13 Time Advisory
This unit should take approximately 2.5 hours to complete.

☐    Subunit 13.1: 1 hour

☐    Subunit 13.2: 1.5 hours

Unit13 Learning Outcomes
Upon successful completion of this unit, the student will be able to: - describe the metabolic pathways, including anabolism and catabolism; - explain the role of insulin and glucagon in regulating the glucose level; and - describe the different types of diabetes mellitus.

13.1 Metabolism: Review   - Web Media: YouTube: BiologixTV’s “What Is Metabolism?” Link: YouTube: BiologixTV’s “What Is Metabolism?” (YouTube)

 Instructions: Click on the link above and watch this brief video
for a review of the resting metabolic rate and exercise metabolic
rate.  

 Watching this video and pausing to take notes should take
approximately 30 minutes.  

 Terms of Use: Please respect the copyright and terms of use
displayed on the webpage above.
  • Reading: Wikibooks’ Human Physiology: “Cell Metabolism” Link: Wikibooks’ Human Physiology: “Cell Metabolism” (HTML)

    Instructions: Read the section titled “Cell Metabolism.” Remember what you learned earlier about cellular respiration and use this reading as a review of the metabolic processes in the cell.

    Reading this section should take approximately 30 minutes.

    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

13.2 Insulin and Glucagon   - Reading: Wikibooks’ Human Physiology: “Control, Coordination, and Homeostasis – Diabetes Mellitus” Link: Wikibooks’ Human Physiology: “Control, Coordination, and Homeostasis – Diabetes Mellitus” (HTML)

 Instructions: Click on the link above and read the section titled
“Diabetes Mellitus,” including “Control of Insulin Secretion” to
learn about the different types of diabetes mellitus. Type II
diabetes mellitus is on the rise because of obesity and decreased
exercise. Notice the key differences between its cause and that of
Type I diabetes mellitus.  

 Reading this section should take less than 15 minutes.  

 Terms of Use: Please respect the copyright and terms of use
displayed on the webpage above.
  • Reading: Wikibooks’ Human Physiology: “Control, Coordination, and Homeostasis – Blood Glucose” Link: Wikibooks’ Human Physiology: “Control, Coordination, and Homeostasis – Blood Glucose” (HTML)

    Instructions: Click on the link above and read the section titled “Blood Glucose,” which describes the role of insulin and glucagon in regulating the glucose level.

    Reading this section should take approximately 15 minutes.

    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

  • Assessment: McGraw-Hill Online Learning Center: Stuart Ira Fox’s “Metabolism Regulation Quiz: Multiple Choice 1” and “Metabolism Regulation Quiz: Multiple Choice 2” Link: McGraw-Hill Online Learning Center: Stuart Ira Fox’s “Metabolism Regulation Quiz: Multiple Choice 1” (HTML) and “Metabolism Regulation Quiz: Multiple Choice 2” (HTML)

    Instructions: Answer all of the questions on both quizzes. Click the “Submit Answers” button for instant feedback.

    Completing these assessments should take approximately 1 hour.

    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.