1. Leaf Deep
Using the diagrams on the worksheet , draw the missing structure onto the diagram.
Complete the gaps!

2. Plant Nutrients Lesson Objectives
C/W
Date:……………………
Plant Nutrients
Lesson Objectives
To describe the role of key plant nutrients.
To explain how deficiency of nutrients impacts on plant growth.
To explain the role of fertilisers.
Success Criteria
Name essential nutrients needed.
List the problems if the nutrients are deficient ‘lacking’.

3. Transpiration Experiment Time to collect results!

4. What is transpiration?
Transpiration is caused by the evaporation and diffusion of water from inside the leaves.
This creates a shortage of water in the leaf, so more water is drawn up through the xylem vessels to replace it.
This means more water is being drawn up from the roots, causing a constant transpiration stream of water through the plant.

5. Experiment Time!
Time to weigh leaves that you set up last time!

6. Results Table Leaf with no Vaseline (g)
Leaf with Vaseline on the bottom (g)
Leaf with Vaseline on the Top (g)

7. What is transpiration?
Transpiration is a side effect of the way leaves are adapted for photosynthesis.
- Stomata: gas exchange
- As there is more water inside the plant than in the air outside, the water escapes from the leaves through the stomata.
Transpiration stream does provide a constant supply of water for photosynthesis.

8. Key Questions What nutrients do plants need to grow properly?
What can be added to soils to increase nutrient content?

9. Essential Nutrients
Nitrates
Phosphates
Potassium

10. Look at the plants on your worksheet Write 2 differences between the plants for each pair.
4 minutes!

11. What happens if plants do not get enough minerals?
Plants do not grow properly if they are deprived of minerals and begin to look unhealthy.
If a plant does not get enough of a mineral it is said
to have a mineral deficiency.
Do mineral deficiencies affect a plant in the same way?

12. No Nitrogen! upper leaves pale green lower leaves yellow and dead
Nitrogen is used for making leaves and is probably the most important mineral for plant growth.
upper leaves
pale green
lower leaves yellow and dead
weak stem

13. No Phosphorus! purple leaves small roots
Phosphorus is used for making roots and is important for all the other minerals used by plants.
purple leaves
small roots

14. No Potassium! poor flower and fruit growth yellow leaves
Potassium is used for making flowers and fruit, so crops are given extra potassium before they start to fruit.
poor flower
and fruit growth
yellow leaves
with dead spots

15. No Magnesium!
Magnesium is used for making chlorophyll and so is vital for the process of photosynthesis.
upper leaves normal (leaves turn yellow from bottom upwards)
lower leaves pale green or yellow

16. No Nitrogen! upper leaves pale green lower leaves yellow and dead
Nitrogen is used for making leaves and is probably the most important mineral for plant growth.
upper leaves
pale green
lower leaves yellow and dead
weak stem

17. No Phosphorus! purple leaves small roots
Phosphorus is used for making roots and is important for all the other minerals used by plants.
purple leaves
small roots

18. No Potassium! poor flower and fruit growth yellow leaves
Potassium is used for making flowers and fruit, so crops are given extra potassium before they start to fruit.
poor flower
and fruit growth
yellow leaves
with dead spots

19. No Magnesium!
Magnesium is used for making chlorophyll and so is vital for the process of photosynthesis.
upper leaves normal (leaves turn yellow from bottom upwards)
lower leaves pale green or yellow

20. Complete table Use the words below to help!
Roots chlorophyll leaves fruits poor growth leaves purple yellow yellow dead

21. Plant and minerals summary
Complete this table of plant mineral needs and deficiencies.
Mineral
Use in plant
Deficiency signs
nitrogen
phosphorus
potassium
magnesium
making l……………..
stunted g……… and
yellow l…………
making r…………
p…… roots and
p………. leaves
making f…………
and fruits
y………. leaves with
d………… spots
making c…………..
leaves turn y……..
from the bottom

22. Plant and minerals summary
Complete this table of plant mineral needs and deficiencies.
Mineral
Use in plant
Deficiency signs
nitrogen
phosphorus
potassium
magnesium
making leaves
stunted growth and
yellow leaves
making roots
poor roots and
purple leaves
making flowers
and fruits
yellow leaves with
dead spots
making chlorophyll
leaves turn yellow
from the bottom

23. Plant and minerals summary
Complete this table of plant mineral needs and deficiencies.
Mineral
Use in plant
Deficiency signs
nitrogen
phosphorus
potassium
magnesium
making leaves
stunted growth and
yellow leaves
making roots
poor roots and
purple leaves
making flowers
and fruits
yellow leaves with
dead spots
making chlorophyll
leaves turn yellow
from the bottom

24. Plant and minerals summary
Complete this table of plant mineral needs and deficiencies.
Mineral
Use in plant
Deficiency signs
nitrogen
phosphorus
potassium
magnesium

25. Plant nutrient practical
Biology for You new edition: page 193 Experiment 12.16: The effects of nutrients on growth.

26. What are fertilisers?

27. Artificial Fertiliser
What are fertilisers?
Something that can be added to the soil to increase the amount of nutrients available in the soil.
Artificial Fertiliser
(Manufactured)
Natural Fertiliser

28. Fertiliser Practical Teacher Guidance
There are different practical's you can do:
Worksheet ‘What does a fertiliser do?’ and has questions to go with it.There is a practical worksheet that runs through the write-up as well.
Which fertiliser is the best? 9Db/1
Biology for You new edition: page 193 Experiment 12.16: The effects of nutrients on growth.

29. Fertiliser with pondweed
Fertiliser Practical
Prediction
Diagram
Conclusion
Water with pondweed
Fertiliser with pondweed

30. Artificial Fertiliser
What are fertilisers?
Something that can be added to the soil to increase the amount of nutrients available in the soil.
Artificial Fertiliser
(Manufactured)
Natural Fertiliser

31. Fertilisers Can be added to the soil Examples: Manure, Compost
Natural Fertiliser
Artifical Fertiliser
(Manufactured)
Can be added to the soil
Examples: Manure, Compost
Restore essential nutrients
Can be added to the soil
Contain mineral salts
NPK: Nitrogen
Phosphorus
Potassium
* Replace mineral salts that have been taken out by crop plants.
Decomposers, which are microbes and other small organisms break down the manure and release salts back into the soil.

32. What are fertilisers?

33. Essential Ingredients for a fertiliser
Nitrates: Needed to make proteins for growth
Phosphates: Needed to encourage the growth of roots.
Potassium: Sometimes called potash
Needed to make chlorophyll
Encourages flowering.
“Never Push Pandas”

34. Why is nitrogen
important to
plants?

35. problems with fertilisers?
What are the
problems with fertilisers?

36. Plant Nutrients Lesson Objectives
C/W
Date:……………………
Plant Nutrients
Lesson Objectives
To describe the role of key plant nutrients.
To explain how deficiency of nutrients impacts on plant growth.
To explain the role of fertilisers.
Success Criteria
Name essential nutrients needed.
List the problems if the nutrients are deficient ‘lacking’.

37. Mineral deficiency experiment