Transcript lesson3 photsynthesis

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” things than
animal cells:
Only plant cells
Both types of cell have
have these:
these:
1) Cytoplasm this is where the
reactions happen
2) Nucleus –
The “brain” of
the cell
3) Cell Membrane –
holds the cell
together
4) Cell wall – provides
support
5) Chloroplasts –
contain chlorophyll
6) Large Vacuole
– contains sap
Copy the diagrams into your exercise book
Leaves
Read page 66
Connecting science
Photosynthesis happens in the
“palisade” cells in the leaf:
Palisade
cells
Copy the
cross
section of a
leaf into
your books
Close up on a palisade cell:
Cell
wall
Cell
membrane
Large
vacuole
Chloroplasts
(containing
chlorophyll)
Nucleus
Cytoplasm
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 )
What happens to glucose produced in photosynthesis?
Substance
What process does a
plant use glucose for? made from
2. Copy and complete the glucose
table
1.
How do
you think
the
substance
is used in
the plant
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