The life cycle and structure of a plant
Understand the life cycle of a plant
Reference: SW9 Pg 121
Plants go through a life cycle like all other living things. There is no start or end to the cycle.
Understand the life cycle of a plant
Reference: SW9 Pg 121
Plants go through a life cycle like all other living things. There is no start or end to the cycle.
Task 1
Seeds are dormant.
What does this mean the seed is doing?
Find out using the internet and write an answer in your own words.
X
Why would seeds need to be able to do this?
X
Plants are important because they provide food and oxygen but also because
humans use them to make things.
Do SciPad Pg 132
Describe the structure and function of parts of the plant
There are two main systems in a plant:
The root system is below the ground
The shoot system is above the ground
Seeds are dormant.
What does this mean the seed is doing?
Find out using the internet and write an answer in your own words.
X
Why would seeds need to be able to do this?
X
Plants are important because they provide food and oxygen but also because
humans use them to make things.
Do SciPad Pg 132
Describe the structure and function of parts of the plant
There are two main systems in a plant:
The root system is below the ground
The shoot system is above the ground
Task 2
Label the diagram of the plant:
Terms to use: Flower, Fruit, Leaf, Root, Stem.
What is the name and functions for each part of the plant numbered 1 to 5 in the diagram above?
1. X
2. X
3. X
4. X
5. X
Do SciPad Pg 122-123
Describe the transport of water through a plant
Water is important for a plant. It needs water for:
Plants get water throughout their body by a process called transpiration.
Task 3
Watch this video to answer the following questions (pause the video while you write your answers, you may need to watch it a few times)
http://www.youtube.com/watch?feature=player_embedded&v=At1BJJDcXhk
Use this picture for extra help: http://image.wistatutor.com/content/feed/u2044/Diagrammtic%20representation%20of%20Transpiration-Cohesion%20Theory.jpeg
Where does the water originally come from?
X
Where does the water enter the plant?
X
What is the name of the tubes that the water moves up the stem called?
X
Where does the water come out of the plant?
X
What is the name of the pores (little holes) where the water is coming out?
X
Task 4
Put a stick of celery into a beaker of water with food colouring added to it. Take a photo of it at the start and another the next day. Cut it across the stem and take a photo.
Paste your photos here.
Do Pg 130 in your SciPad
Task 5
How fast transpiration occurs (the rate of transpiration) depends on what is happening in the environment. Use this
animation to name the FOUR things which could change the rate of transpiration.
*This is a flash animation so iPads might not be able to play it. Share with someone who can play it.
http://www.sciencemag.org/site/feature/misc/webfeat/vis2005/show/transpiration.swf
1. X
2. X
3. X
4. X
Task 6
Write a short paragraph to summarise your understanding of transpiration. Include:
X
Paste in a diagram showing the transport of water through a plant.
X
Label the diagram of the plant:
Terms to use: Flower, Fruit, Leaf, Root, Stem.
What is the name and functions for each part of the plant numbered 1 to 5 in the diagram above?
1. X
2. X
3. X
4. X
5. X
Do SciPad Pg 122-123
Describe the transport of water through a plant
Water is important for a plant. It needs water for:
- photosynthesis
- chemical reactions in its cells
- support (to keep it upright and stiff)
- keep leaves cool
Plants get water throughout their body by a process called transpiration.
Task 3
Watch this video to answer the following questions (pause the video while you write your answers, you may need to watch it a few times)
http://www.youtube.com/watch?feature=player_embedded&v=At1BJJDcXhk
Use this picture for extra help: http://image.wistatutor.com/content/feed/u2044/Diagrammtic%20representation%20of%20Transpiration-Cohesion%20Theory.jpeg
Where does the water originally come from?
X
Where does the water enter the plant?
X
What is the name of the tubes that the water moves up the stem called?
X
Where does the water come out of the plant?
X
What is the name of the pores (little holes) where the water is coming out?
X
Task 4
Put a stick of celery into a beaker of water with food colouring added to it. Take a photo of it at the start and another the next day. Cut it across the stem and take a photo.
Paste your photos here.
Do Pg 130 in your SciPad
Task 5
How fast transpiration occurs (the rate of transpiration) depends on what is happening in the environment. Use this
animation to name the FOUR things which could change the rate of transpiration.
*This is a flash animation so iPads might not be able to play it. Share with someone who can play it.
http://www.sciencemag.org/site/feature/misc/webfeat/vis2005/show/transpiration.swf
1. X
2. X
3. X
4. X
Task 6
Write a short paragraph to summarise your understanding of transpiration. Include:
- a definition of transpiration
- how transpiration works
- why the plant needs transpiration to happen
- what can speed up the rate of transpiration
X
Paste in a diagram showing the transport of water through a plant.
X