1 ESO Plants

1. UNIT 1-PLANTS

2. Today we are going to:
• Review photosynthesis with a game
• Learn about the vital function: “Interaction with the
environment”

3. Questions:
• Where takes place photosynthesis?
• What are chloroplasts?
• What is chlorophyll?
• How can gases go in and out of the leaves?
• What are stomata?
• What is the raw sap?
• What is the elaborated sap?

4. Photosynthesis process
2
1
3
4
5

5. Organic
matter

6. Organic
matter
(glucose)

7. Organic
matter
(glucose)

9. Game to review the photosynthesis
1 2
3 4

10. 1- How do gases enter and exit the leaves?
a) Through the veins
b) Through tiny pores called stomata
c) Through tiny vessels inside leaves

11. Try again! 
Question 1

12. Well done! 
Home

13. 2- The raw sap is made up of
a) Carbon dioxide
b) Water and mineral salts
c) Glucose (organic matter)

14. Try again! 
Question 2

15. Well done! 
Home

16. 3- Look at the picture and identify the right answers
a) 1 is the raw sap and travels
through 2, the phloem
b) 1 is the raw sap and travels
through 2, the xylem
c) 3 is the raw sap and travels
through the phloem
d) 3 is the elaborated sap and
travels through the phloem

17. Try again! 
Question 3

18. Well done! 
Question 3

19. Well done! 
Home

20. 4- Look at the picture and identify the right answers about
the process of photosynthesis
a)1- raw sap, 2-elaborated
sap, 3-stomata, 4-carbon
dioxide, 5-oxygen
c) 1- Elaborated sap, 2-
elaborated sap, 3-stomata, 4-
carbon dioxide, 5-oxygen
b) 1- Elaborated sap, 2-raw
sap, 3-stomata, 4-oxygen,
carbon dioxide

21. Try again! 
Question 4

22. Well done! 
Home

23. Interaction with the environment in plants
• What are stimuli?
• Do plants move?
• Do plants respond to stimuli? How?

24. Stimuli
• Changes in the environment. Living things receive and react
to these stimuli.

25. Plants reaction to stimuli
• Tropisms
• Nastic movements
• Video about tropisms-stimuli
• https://www.youtube.com/watch?v=pCFstSMvAMI
• Go to page 144 book/digital book santillana

26. Video comprehension
• What are tropisms?

28. Tropisms

30. • Animation

31. What part of the plants has?
• Positive phototropism
• Negative phototropism
• Positive hydrotropism
• Negative hydrotropism

33. Nastic movements
• Video Venus flytrap
• https://www.youtube.com/watch?v=j5ovYf7xukw
• Video planta Drosera
• https://www.youtube.com/watch?v=jPDy2X-sCPk
• Video margaritas
• https://www.youtube.com/watch?v=mtEGLHDSELE

35. PHOTONASTY THERMONASTY SEISMONASTY SEISMONASTY

36. Why are plants/trees
important for us?

37. The importance of trees