1. Where does all the extra mass come from ?
On the Farm 9C
Where does all the extra mass come from ?
1.6 g g

2. On the Farm 9C Know what photosynthesis is -3
Know what 3 things you need for photosynthesis -3
To be able to give the word equation for photosynthesis (5)
To be able to give the symbol equation for photosynthesis (6)
To be able to balance the symbol equation for photosynthesis (7)
Compare different cells and LINK their structure to their location on a plant.5-6
To use evidence to explain where a tree gets its mass from 7

3. Know what photosynthesis is -3
Know what 3 things you need for photosynthesis -3
Listen to the song.
What is photosynthesis?
What 3 things do you need for photosynthesis?
Where in the plant does photosynthesis take place?

4. Things needed for photosynthesis
SUNLIGHT
Gives the plant energy
CHLOROPHYLL
The green stuff where the chemical reactions happen
WATER
Travels up from the roots
CARBON DIOXIDE
Enters the leaf through small holes on the underneath
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5. Photosynthesis happens in the “palisade” cells in the leaf:
Source: BBC Bitesize
Palisade cells
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6. Close up on a palisade cell:
Cell wall
Cell membrane
Chloroplasts (containing chlorophyll)
Large vacuole
Nucleus
Cytoplasm
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7. Photosynthesis equation challenge
Carbon dioxide + _____ glucose + _____
____ ____ C6H12O6 + _______
Sunlight
Chlorophyll
The GLUCOSE produced by photosynthesis is used by the plant for _______ (through ____________). It is stored in the plant as ___________.
Words – respiration, starch, water, oxygen, energy
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8. Photosynthesis the basics what you need on your poster!
The three things a plant needs for photosynthesis are (3)
__________
___________
The word equation for photo synthesis is (4)
The symbol equation for photosynthesis is (5)
_____________
The balanced symbol equation for photo synthesis is (6-7)
Level 7. (page 32)
Where did Aristotle think plants got their mass?
How did van Helmont disprove him?
Where do we know know plants get there mass from ?
______________________

9. Compare different cells and LINK their structure to their location on a plant (5-6)
Look at both types of cells under the microscope
Then answer the questions on the work sheet
Glue the worksheet to the other side of your card.

11. Task 1
Paint a small strip of clear nail varnish on the UNDERSIDE of a leaf all will be revealed later

12. How does the plant get the water ?
LARGE SURFACE AREA

13. How does the plant the water ?
Specialised root hair cells
LARGE SURFACE AREA
THIN CELL MEMBRANE

14. How does the plant the water?
1. On the diagram label
Xylem, Soil particles
3. Draw an arrow to show the movement of water.
4.Explain HOW xylems are formed.
Copy and complete:
P_________________ cells need water for p__________________.
Water travels from the soil through the specialised ____________ ____________ ______________.
Water then travels through the specialised x____________ up the s____________ of the plant to the l_______________.
The water reaches leave cells by travelling along the v_____________ in the plant leaf.

15. If we had a microscope and could see particles, which picture would show the particles in air ?

16. Looking even harder: Air is made of different gas particles: How many different gases can you remember ?

17. 1) Copy and complete: There are many d…………………. gas particles in air
1) Copy and complete: There are many d………………….. gas particles in air. Most are called …………………….. Some are called ……………………… And there are only a few called ……………………..
2) Draw a particle diagram of air. 3) underneath write how the particles are arranged and how they move. 4) Extension- show and label the different gases.

18. How does the carbon dioxide get into the plant ?

19. How do Plants get Carbon dioxide ?
Plants and gases
There are many d______________ gas particles in air. Most are called ________________
Some are called _______________ And there are only a few called _______________
A particle diagram of air.
How do Plants get Carbon dioxide ?
Holes (stomata) and guard cells in the underside of plant leaves under the microscope.
Extension calculate magnification.

20. Extension
Here is a picture of a “typical plant cell” Explain how a root hair cell, the xylem and guard cells are adapted to their jobs.
Cell membrane
Vacuole
Cytoplasm
NUCLEUS
Cell Wall
Chloroplast

21. 1. Draw and label a palisade cell using the outline below 2
1. Draw and label a palisade cell using the outline below Where are these cell found ____________
3. How many cells can you count in the picture on the right?______________ 4. What are the “green organelles” called and what is their job ?_______________ _______________________________________________________________ 5.What is the difference between the two cells photographed above ? _______________________________________________________________ 6. Where might you find each type of cell ? ______________________________________________________________
Extension. What is the difference between chloroplasts and chlorophyll ?

22. Plenary give yourself a level
Know what photosynthesis is -3
Know what 3 things you need for photosynthesis -3
To be able to give the word equation for photosynthesis (5)
To be able to give the symbol equation for photosynthesis (6)
To be able to balance the symbol equation for photosynthesis (7)
Compare different cells and LINK their structure to their location on a plant.5-6
To use evidence to explain where a tree gets its mass from 7