Secondary 1

1. Plants
By T. Gemma Hilado
Visuttharangsi School
Education Hub – SMBP
Subject: Chemistry

2. Outline
1. Transport System and Processes in Plants
2. Photosynthesis
3. Growth and Reproduction
4. Stimuli and Responses in Plants
5. Review Questions

3. Transport Systems in Plants
and Processes in Plants
Germination of Seeds

4. Germination
• is the process by which an organism
grows from a seed or similar structure.

5. Two Groups of Plants:
1. Vascular Plants
2. Nonvascular Plants

6. Vascular Plants
• Have 2 types of transport tissues:
1. Xylem (tubes or vessels)
2. Phloem (tubes)

7. Xylem Tubes
conduct water and
solutions from the
roots to the leaves
Phloem Tubes
conduct food from
leaves to the rest of
the plant

8. Xylem and Phloem

9. Stomata during the day and night

10. Som: What is stomata?

11. Stomata
• Are small openings or pores which are
present on the leaves, stems or flowers.
• Most are in the leaves.

12. Transport Process in Vascular
Plants

13. Transport Process in
Nonvascular Plants

14. Tah: What is Photosynthesis?

15. Photosynthesis
• Is a process of making food in plants.
• Photo (means light); synthesis (to put together)

16. Photosynthesis Equation

17. Photosynthesis Role Play/ Song
• 3 Groups:
Group 1:
Group 2:
Group 3:

19. Photosynthesis Song

20. Photosynthesis Song

21. Growth and Reproduction
2 Types of Reproduction:
1.Sexual Reproduction
2.Asexual Reproduction

22. Sexual Reproduction
• Involves male and female organs.
Now: Do you know that plants have sex
cells too?
Pang: What are the sex cells in plants?
What are the sperm cells and egg cells in
plants?

23. Fertilization
• This occurs when a sperm unites an egg
cell.
• The fertilized egg becomes a Zygote.

24. Pollination
• Is an act of sexual reproduction in plants.
• Flowering plants have sexual reproduction
since they have male and female organs.
• This occurs when a pollen from another
anther of one plant is carried to the stigma
of another.

26. Asexual Reproduction
• Takes place
without joining of
male and female
organs.
• Only requires one
parent and
duplicates off
springs that are
the same as the
parent.

27. Structure of a Flower

28. Parts of Flower:
Stamens: the male organs of
Anther: held by the filament and
produces the pollen.
Carpel: the female organ

29. Stimuli and Responses in Plants

32. Auxins- are plant hormones