Plants and Photosynthesis
Level Assessed Task
Jack, Craig and Ben are great friends but when it comes to gardening
they try to outdo each other. Each has built a heated greenhouse in
their garden. The local hotel offers a prize for the heaviest crop of
strawberries from 6 plants of a certain variety. All three water their
plants and heat their greenhouses to 150C. Jack has put lights in his
greenhouse. Craig constantly talks to his plants. Ben has lights and talks to
his plants. Who will win the prize?
Task
Predict the winner of the strawberry competition.
Use the pictures on the next page in your written report to the hotel.
Include any equations you know or can find out.
Keywords - photosynthesis, respiration, leaf, root, stem, chloroplast,
palisade, mesophyll and guard cells, water, carbon dioxide, light energy,
glucose, starch.
Level
3
4
5
6
7
8
You should be able to..
Say what green plants need. Label the parts of a plant
In plants, say where water goes in, and where air goes in and
out. Say why it’s green and why it needs light energy.
Name the raw materials and products of photosynthesis. Say
what photosynthesis is and where it takes place. Describe
the relationship in plant cells between photosynthesis and
respiration. Say when respiration takes place and when
photosynthesis does.
Link 3 structures in the leaf to their job in photosynthesis.
Write a word equation for photosynthesis.
Explain what the chloroplast does and how the plant uses the
things it makes (for example, glucose).
Explain 3 adaptations of leaves for photosynthesis.
Write a balanced symbol equation for photosynthesis. Explain
the chemical changes involved. Label palisade and mesophyll
layers and guard cells and explain their jobs in
photosynthesis.
Explain the effect of increasing the amount of carbon dioxide
on plant growth.
Label the diagrams and use them in your report to the hotel.
The Organs of a Plant
Cross-Section of a Leaf
A Plant Cell