The structure of leaves and the use of glucose

Lesson aims To study the structure of leaves

and how this links to their role in photosynthesis

To learn how glucose produced in photosynthesis is used in plants

Learning Outcomes

By the end of the lesson you should :• know the parts of plant and animal

cells and their functions• know how leaf cells close to the upper

surface of the leaf are adapted for photosynthesis

• know how glucose is used and stored in a plant

What did you find out last lesson?

Copy: Plant cells have three “extra” Copy: Plant cells have three “extra” things than animal cells:things than animal cells:

Both types of cell have these:

Only plant cells have these:

4) Cell wall – provides support

Large Vacuole – contains sap

Chloroplasts – contain chlorophyll

1)

5)

6)

2)

3) Cell Membrane – holds the cell together

Cytoplasm - this is where the reactions happen

Nucleus – The “brain” of the cell

Copy the diagrams into your exercise book

Leaves

Read page 66 Connecting science

Photosynthesis happens in the “palisade” cells in

the leaf:

Palisade

cellsCopy the cross section of a leaf into your books

Close up on a palisade Close up on a palisade cell:cell:

Cell wall

Cell membrane

NucleusLarge vacuole

Cytoplasm

Chloroplasts (containing chlorophyll)

Explain how the palisade cells are adapted for photosynthesis

Copy the diagram of a stomata Explain how the stomata are used during photosynthesis (page 66 )

1. What process does a plant use glucose for?

2. Copy and complete the table

Substance made from glucose

How do you think the substance is used in the plant

What happens to glucose produced in photosynthesis?

Learning Outcomes

By the end of the lesson do you:• know the parts of plant and animal

cells and their functions• know how leaf cells close to the upper

surface of the leaf are adapted for photosynthesis

• know how glucose is used and stored in a plant