Introduction
Greetings Grade 10, todays lesson is Transpiration. Please watch the video below to know what transpiration is.
Task
In this task you will have to read your notes before, the answer the following questions in your exercise book before 28 August 2021.
Name:.............
Grade: 10
Topic: Transport system in plants
Due date: 28 August 2021
Question 1
Look the diagram in the link below and answer the following questions.
https://cnx.org/contents/KEw8cK8O@3.1:TZjUzG_J@1/2-1-2-Transpiration
1. Zandile set up the following apparatus to investigate how temperature effects transpiration rate.
1.1 What is the name of this apparatus? (1)
1.2 Why should this apparatus be allowed to stand before starting the experiment? (2)
1.3 Give the hypothesis for this experimental investigation. (2)
1.4 Identify the:
(a) Dependent variable (1)
(b) Independent variable (1)
Question 2
Indicate whether the following statements are true or false, give the correct statement:
2.1 As temperature increases, transpiration rate decreases.
2.2 Transpiration rate is inversely proportional to relative humidity.
2.3 As wind speed increases, transpiration rate increases.
2.4 There is a direct relationship between temperature and the rate of transpiration. (2x4)
Process
Below are the links that are going to broaden your knowledge about Transpiration.
1. You may found written notes on:
https://cnx.org/contents/KEw8cK8O@3.1:TZjUzG_J@1/2-1-2-Transpiration
2. What is transpiration?
3. Factors affecting the rate of transpiration
4. How does stomata looks like?
https://qsstudy.com/wp-content/uploads/2017/05/stomata.jpg
Evaluation
You will be marked according the the following rubric:
|
Marks
|
|
|
Question 1
|
7 |
|
Question 2
|
8 |
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Total= |
15 |
You are required to number correctly.
Conclusion
The task given is only the introduction on how water is transported in plants and will give you insight on how xylem works. Good luck and enjoy the lesson!
Credits
A word of gratitude to the links below to make this lesson a success.
https://cnx.org/contents/KEw8cK8O@3.1:TZjUzG_J@1/2-1-2-Transpiration
https://www.youtube.com/watch?v=ceqqn6HhKKA&t=29s
https://www.youtube.com/watch?v=J2DMGUHF5jY&t=133s
https://qsstudy.com/wp-content/uploads/2017/05/stomata.jpg