1. Bio 9B: Wednesday, 12.8.10 Title: Patterns in Nature: Biomimicry and the Respiratory System
Homework:
Read pages in the Biology textbook (this is the first half of section 37-3).
In your notebook:
Membrane Review Questions
Take notes based on the questions on the back of Assign. sheet.
Do Now:
What is the purpose of the respiratory system?
Today’s Objectives:
Identify patterns of different structures in nature to determine the function of the object.

2. Patterns in Nature: A Biomimicry Exercise

3. Sketch this Image into your Notebook What do you think it is?

4. Sketch this Image into your Notebook What do you think it is?

5. Reflect on the First Two Images
Why do you think these first two objects are “designed” the way they are?

6. 1. What similarities do you notice between these two images?
2. Why do you think these similarities exist?
3. What do you think these things are (hint: they are not the same thing)?

7. Satellite image of a river delta!
X-ray image of a lung!
Satellite image of a river delta!

8. Let’s look at some other patterns…

13. Why do trees have leaves?

19. Title: Respiratory System: Structures & Functions
Bio 9B: Thursday,
Title: Respiratory System: Structures & Functions
Double Block
Homework:
NONE  - Enjoy the weekend
Do Now:
Based on last night’s reading, what is the function of the respiratory system?
How is this different than what you wrote down for yesterday’s Do Now?
How does this relate to cell respiration?
Today’s Objectives:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the structures and functions of respiratory system organs, and explain how they relate to each other

20. PHA Biology 9 Moretti and Dickson
Respiratory System
PHA Biology 9
Moretti and Dickson

21. Agenda
Respiratory System: Structures and Functions Day 1 (1st Half of Double Block)
Complications of the Respiratory System

22. Purpose of the Respiratory System
Transport O2 from the air into the bloodstream
Dispose of CO2 from the bloodstream into the air
Link to CELL RESPIRATION:
Oxygen is needed by cells for cell respiration to produce ATP
Carbon Dioxide produced from cell respiration is exhaled through Respiratory System
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

23. How the Internal Organs Fit Together Image shows major digestive, respiratory, and circulatory system organs
Front View
Back View
Images:

24. Structures of the Respiratory System
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

25. Structures of the Respiratory System:
Mouth & Nose:
Air enters the body; gets moistened/filtered
Trachea (aka windpipe):
The main airway to the lungs.
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

26. Structures of the Respiratory System:
Lungs:
Main organs of the respiratory system where gas exchange takes place.
Bronchi:
Tubes that branch off from trachea.
One major bronchi for each lung that branches into smaller and smaller “branches” in the lung
Note: The smaller branches of the bronchi are called bronchioles, but we will just call all of the branches BRONCHI.
Major Bronchi Branching
Smaller Bronchi Branching in the lung
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

27. Structures of the Respiratory System:
Alveoli:
Tiny air sacs at the ends of the bronchioles where gas exchange takes place. Look like GRAPES!
Surrounded by a network of capillaries – tiny blood vessels that trade O2 and CO2 with alveoli

29. Structures of the Respiratory System:
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

30. Agenda
Respiratory System: Structures and Functions Day 1 (1st Half of Double Block)
Complications of the Respiratory System

31. Complications of the Respiratory System
6 Groups:
Smoking (use pg in book)
Pneumonia
Cystic Fibrosis
Bronchitis
Asbestos
Asthma

32. Complications of the Respiratory System
Task I - In Small Groups of 3 and 4:
Research one complication of the respiratory system and be able to describe it to the other students in your group.
In the “Diagram Box”, draw how your issue damages the respiratory system by modifying and annotating the diagram of the lung.
In the “Information Box”, describe the characteristics of your issue, explain how it affects the structures of the respiratory system, and describe how it effects the function of the respiratory system (you can think of these as symptoms).
Task II - “Jigsaw” into groups with members from different groups:
Each person shares the information from their issue
As each person presents, all other group members should be comparing and contrasting that issue to their own.
Task III - Individually:
Compare and contrast 2 of the respiratory system complications to determine their similarities and differences

33. Complications of the Respiratory System
Task I - In Small Groups of 3 and 4: (15 min)
Research one complication of the respiratory system and be able to describe it to the other students in your group.
In the “Diagram Box”, draw how your issue damages the respiratory system by modifying and annotating the diagram of the lung.
In the “Information Box”, describe the characteristics of your issue, explain how it affects the structures of the respiratory system, and describe how it effects the function of the respiratory system (you can think of these as symptoms).

34. Complications of the Respiratory System
Task II - “Jigsaw” into groups with members from different groups: (25 Min)
Each person shares the information from their issue
As each person presents, all other group members should be comparing and contrasting that issue to their own.
Task III – Individually (10 Min)
Compare and contrast 2 of the respiratory system complications to determine their similarities and differences

35. Title: Respiratory System: Structures & Functions Day 2
Bio 9B: Monday,
Title: Respiratory System: Structures & Functions Day 2
Homework:
Use the study guide on the back of this sheet to study for tomorrow’s QUIZ.
Collect Late Work
Pass Back Lab Reports
Do Now:
Take the balloon and, without stretching it, try to inflate it.
Observe what your body is doing to inflate the balloon.
Mark your observations in your notebook
Today’s Objectives:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the structures and functions of respiratory system organs, and explain how they relate to each other

36. Structures of the Respiratory System:
Debrief of Balloon Blowing:
What did you observe your body doing to inflate the balloon?
Quick Activity – “Holding your Breath”:
Hold your breath for as long as you can (on my start)
While you are holding your breathe, observe what happens to your body the longer you try not to breathe.
Record these observations in your notebook.
Debrief of Holding Breath:
What did you observe about your body as you tried to hold your breath?
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

37. Two Important Processes in the Respiratory System:
(Don’t need to write this down – just a preview)
Breathing – controlled by the diaphragm
Gas exchange – happens in the alveoli
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

38. Structures of the Respiratory System:
Diaphragm:
Large flat muscle that controls breathing
Located at the bottom of the chest cavity
When it contracts, you inhale
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

39. The Process of Breathing
Inhaling:
Diaphragm contracts & lowers
Volume of lungs increases
Air rushes in (through mouth/nose, trachea,
bronchi, to alveoli) to fill the space
Exhaling:
Diaphragm relaxes & bends upward
Volume of lungs decreases
Air is forced out (from alveoli through bronchi, trachea, mouth/nose)
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

42. The Process of Gas Exchange
Gas exchange – the diffusion of oxygen and carbon dioxide across cell membranes
Happens in the alveoli of the lungs
Oxygen diffuses from alveoli into capillaries (tiny blood vessels) and binds to red blood cells
Carbon dioxide diffuses from capillaries into alveoli
Objectives for Class:
Describe the difference between structure and function, and explain how an object’s structure relates to its function
Describe the major structures and functions of all organs in the respiratory system

44. The Process of Gas Exchange
Gas exchange in the lungs needs HUGE AMOUNTS of surface area for enough O2 and CO2 to diffuse!
Lungs contain 1.3 million alveoli!!
The total surface of all the alveoli would cover half a tennis court!!

45. Transition to Circulatory System Notes
PHA_Bio9_intro_circ_09_9B.pptx