carbon dioxide from the air

1
Leaf Structure
The leaf has evolved to form food and oxygen
from simple materials.
carbon dioxide from the air
water from the roots
energy from sunlight (or light)
food transported to the rest of the plant
But how are the cells organised?
Slide 4.20
2
Diagram of cross-section of a leaf
Label number 1 by moving the cursor onto the
correct label and click
2
11
stomate
mesophyll
3
4
1
10
Wax cuticle
Palisade cell
5
8
Lower epidermis
Upper epidermis
9
6
7
Spongy cells
Air space
Wax cuticle
Guard cell
chloroplast
Slide 4.21
3
Well done! Now label number 2.
2
11
stomate
mesophyll
3
Air space
4
10
Wax cuticle
Palisade cell
5
8
Lower epidermis
Upper epidermis
9
6
7
Spongy cells
Wax cuticle
Guard cell
chloroplast
Slide 4.21
4
Well done! Now label number 3.
Wax cuticle
11
stomate
mesophyll
3
Air space
4
10
Palisade cell
5
8
Lower epidermis
Upper epidermis
9
6
7
Spongy cells
Wax cuticle
Guard cell
chloroplast
Slide 4.21
5
Well done! Now label number 4.
Wax cuticle
11
mesophyll
Palisade cell
Air space
4
stomate
10
5
8
Lower epidermis
Upper epidermis
9
6
7
Spongy cells
Wax cuticle
Guard cell
chloroplast
Slide 4.21
6
Well done! Now label number 5.
Wax cuticle
11
mesophyll
Palisade cell
Air space
chloroplast
10
5
8
Lower epidermis
Upper epidermis
9
6
7
Spongy cells
Wax cuticle
Guard cell
stomate
Slide 4.21
7
Well done! Now label number 6.
Wax cuticle
11
Palisade cell
Air space
chloroplast
10
Spongy cells
8
Lower epidermis
Upper epidermis
9
6
7
Wax cuticle
Guard cell
stomate
mesophyll
Slide 4.21
8
Well done! Now label number 7.
Wax cuticle
11
Palisade cell
Air space
chloroplast
10
Spongy cells
8
Upper epidermis
9
Wax cuticle
7
Guard cell
stomate
Lower epidermis
mesophyll
Slide 4.21
9
Well done! Now label number 8.
Wax cuticle
11
Palisade cell
Air space
chloroplast
10
Spongy cells
8
Upper epidermis
9
Wax cuticle
Guard cell
stomate
Lower epidermis
mesophyll
Slide 4.21
10
Well done! Now label number 9.
Wax cuticle
11
Palisade cell
Air space
chloroplast
10
Spongy cells
stomate
Upper epidermis
9
Wax cuticle
Guard cell
Lower epidermis
mesophyll
Slide 4.21
11
Well done! Now label number 10.
Wax cuticle
11
Palisade cell
Air space
chloroplast
10
Spongy cells
stomate
Lower epidermis
Wax cuticle
Guard cell
Upper epidermis
mesophyll
Slide 4.21
12
Well done! Now label number 11.
Wax cuticle
11
Palisade cell
Air space
chloroplast
mesophyll
Spongy cells
stomate
Lower epidermis
Wax cuticle
Guard cell
Upper epidermis
Slide 4.21
13
Brilliant!
Wax cuticle
Upper epidermis
Palisade cell
Air space
chloroplast
mesophyll
Spongy cells
stomate
Lower epidermis
Wax cuticle
Guard cell
Now copy the labels onto your diagram and stick
it carefully into your book.
Slide 4.21
14
Oh dear! Try again!