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Week 13 - Cells and Systems: Disorders

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Book: Week 13 - Cells and Systems: Disorders
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Date: Monday, 17 November 2025, 5:41 PM

Description

Week 13 - Cells and Systems: Disorders

Table of contents

1. Respiratory System Disorders

Lesson 17

Science in Action 8
Pages 161-162
ScienceFocus 8
Page 160
Lesson 17: Respiratory System Disorders

The respiratory system is the part of your body that allows you to take in fresh, oxygen rich air that all your cells need to function well. In addition, this system allows you to breathe out the waste product carbon dioxide that your cells produce as a by product of energy production. Many conditions can interfere with this essential process. You will learn about asthma, bronchitis, and the effects of smoking and air pollution.

Exercise 5.1: Respiratory System

1. List four possible effects of smoking and air pollution on your respiratory system.
2. What is your opinion on the regulation of smoking in public areas? 

"Smoking in public places should be completely banned. " 

Give at least three good reasons in support or in opposition to this position.


© 2002 Alberta Online Consortium

2. Circulatory System Disorders

http://learn.argyll.epsb.ca/Science/Sci8/AOC/

Lesson 18

Science in Action 8
Pages 163

ScienceFocus 8
Pages 157

Lesson 18: Circulatory System Disorders

 The circulatory system is your body's transportation system that allows fresh materials and nutrients to be brought to the cells and waste products to be taken away. Any disorder in this system creates problems for the whole body. You will learn about the effects of disorders like hypertension (high blood pressure), strokes and arteriosclerosis.


Your life style can make a big difference to the health of your heart .


 Exercise 5.2: Circulatory System
 

1. Explain how life choices affect the health of your heart. 'Use each of the following headings: a, diet - 

b. exercise - 

c. smoking - 
2. Describe what you would do personally to develop a 'heart healthy' lifestyle.


© 2002 Alberta Online Consortium

3. Digestive System Disorders

Lesson 19

Science in Action 8
Pages 164

ScienceFocus 8
Pages 159

Lesson 19: Digestive System Disorders

The digestive system is responsible for converting the food you eat into a form useful to the cells in your body. This requires the breakdown of nutrients into their simplest form This will supply the body with energy or raw materials to be used for growth and tissue repair. Any disruptions in the digestive system will cause . Problems with cells all over the body
The process of digestion begins in the mouth, where the saliva begins the breakdown of carbohydrates. The next step is the stomach, where proteins are broken down. Ulcers are a common disorder of the stomach. Food materials then move to the intestine, where carbohydrates, proteins and lipids. To break down lipids (fats) bile from the gall bladder is needed. A disorder that can happen is known as gall stones and it interfere with the digestion of lipids. The next step is the last part of the large intestine, called the colon. Doctors feel that a lack of fibrin the diet may lead to colon cancer.


 Exercise 5.3: Digestive System

 

© 2002 Alberta Online Consortium

Conclusion

As we have seen throughout this unit the human body and all it's systems are very complex.

-Werner van Braun
 
"While the admission of a design for the universe ultimately raises a question of a Designer (a subject outside of science), the scientific method does not allow us to exclude data which lead to the conclusion that the universe, life and man are based on design. To be forced to believe only one conclusion -- that every living thing in the universe happened by chance -- would violate the very objectivity of science itself. Certainly there are those who argue that the universe evolved out of a random process, but what random process could produce the brain of a man or the system of the human eye?"

4. Unit 2 Section 4 Notes

Study Notes

5. Unit 2 Section 4-5 Quiz

You will have two opportunities to write this section quiz. This quiz consists of 10 questions. Use the results from your 1st attempt to help you prepare for your second attempt. Your best score will be taken as your assessment mark. You have 15 minutes to complete this multiple choice quiz.


Click the icon to go to the quiz.