UNIT+2+BREATHING+&+RESPIRATION

**UNIT QUESTION:** Why do living organisms respire? **SIGNIFICANT CONCEPTS** Before starting with this chapter you need to revise respiration chapter and be able to answer the following:
 * BREATHING & RESPIRATION **
 * Distinguish between aerobic and anaerobic respiration
 * Name the uses of energy in humans
 * Differentiate between respiration and breathing
 * Understand the production and effects of lactic acid in human muscles during vigorous exercise

After completing this chapter, you will be able to:
 * Understand the mechanism of gaseous exchange in humans
 * To know the properties of an ideal gas exchange surface
 * Investigate the effect of exercise on rate of depth of breathing
 * Relate the features of alveoli to its gaseous exchange function
 * To list some of the respiratory problems related to smoking Tobacco

RESOURCES: POWER POINT PRESENTATION **AREA OF INTERACTION: HEALTH AND SOCIAL EDUCATION**In this unit you will gain insight into the respiration and respiratory system within the human body. You will also be encouraged to develop a better understanding of the possible medical problems associated with pollution and smoking

**SUMMATIVE TASKS:**

- **Lab investigation: Criteria D, E & F**Investigate the factors that affect the respiration in yeast

LAB REPORT GUIDELINES



- **Unit test: Criteria C:** End unit test NOTE: "THE TEST WILL BE IN UNIT 1 & 2" DATE: ASSIGNED BY TEACHER
 * DURATION: 3 weeks **



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 * CLICK HERE To learn about respiration

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INHALATION & EXHALATION

Asthma