Introduction
Gaseous exchange is an involuntary process that occurs in plants, insects, animals and humans.
It is also known as Internal Respiration. In mammals, such as animals and humans, gaseous exchange takes place on the inside of the body.
During this process, gasses are exchanged between the lungs, blood and body cells.
Task
At the end of this WebQuest you will have acquired the following knowledge:
1. What Gas exchange is.
2. How gas exchange occurs in different animals, plants and insects.
3. How that the responsible organs used for gas exchange differ from one animal to another.
4. That all animals, insects and plants need to meet the same requirements for efficient gas exchange to take place.
5. That there are differences between animals in aquatic and animals in terrestrial environments.
Process
Step 1
1. Click on the YouTube Link below.
Gaseous exchange in different animals
2. After watching the video, write down your name and surname on a word document, followed by the answers to the following questions.
3. How does animals exchange gases? Is it different to that of humans?
4. How does insects exchange gases?
5. What does all the animals in the video have in common, that allows them to exchange gases?
Step 2
1. Click on the YouTube Link below and watch the video.
2. On the word document that you have created, continue by answering the questions that will follow below.
Exchange of gases in aquatic and terrestrial animals.
2. How do fish breathe under water? What organs do they use?
3. How does aquatic animals exchange gasses differently than terrestrial animals? What challenges are there?
Step 3
1. Click on the YouTube Link below, watch the video and answer the questions that follows on your word document, below the previous answers.
2. At which part of the plant does gas exchange occur?
3. What are the pores called where gas exchange occurs?
4. List one requirements for efficient gas exchange organs?
5. After answering all these questions, save your word document and rename it using your initials and surname.
6. Lastly submit by sending it to me using my email which i have provided in our previous lesson.
Evaluation
The mark allocation for the questions above is as follows:
The Questions in:
Step 1 (3 questions) =2 marks each.
Step 2 (2 questions) = 3 marks each.
Step 3 (3 questions) =1 mark each.
Total marks that can be scored: 15
Conclusion
Gas exchange is very important in order for life to continue on planet earth. Humans, animals, insects and plants all need to obtain oxygen and get rid of carbon dioxide in order to live. If this process should be interrupted or hindered, life would sadly cease to exist.
This WebQuest was designed to help you to learn about gaseous exchange and its importance. For further learning on the topic, use the links provided below.