Name: _____________________________________________________ Date: ____________________ Period: _______
Photosynthesis Internet Lesson
Visit the following website to answer the questions below. There is a link on my webpage.
http://www.phschool.com/science/biology_place/biocoach/photosynth/intro.html
1. Define PHOTOSYNTHESIS. ___________________________________________________________________
___________________________________________________________________________________________
2. Read the introduction. When finished, click “Next Concept”
Concept 1: Overview of photosynthesis
3. After photosynthesis is finished, in what form is chemical energy stored? ________________________________
4. Show the equation for photosynthesis.
5. Water is oxidized. What does this mean? __________________________________________________________
6. After reading the section, click “Next Concept”
Concept 2: Electromagnetic Energy
7. Define WAVELENGTH.
_________________________________________________________________________
8. Which wavelengths have greater energy? _________________________________________________________
9. According to the sliding scale
a. Which type of ray has the most energy? ____________________________________________________
b. Which color of visible light has the longest wavelength? _______________________________________
10. What happens to light energy during photosynthesis?
___________________________________________________________________________________________
11. When finished reading, click “Next Concept”
Concept 3: The Action Spectrum of photosynthesis
12. What did Thomas Engelmann discover?
________________________________________________________________________________________
13. In which colors of light do algae release more oxygen? _______________________________________________
14. When finished reading, click “Next Concept”
Concept 4: Structure of a Leaf
15. Which molecule do leaves try and prevent the escape? ______________________________________________
16. Label the parts of the leaf. Name the openings (pores) of a leaf. _______________________________________
17. When finished reading, click “Next Concept”
Concept 5: Structure of a mesophyll cell
18. What do mesophyll cells contain to allow photosynthesis? ____________________________________________
19. Which gases are exchanged in the mesophyll? ______________________________________________________
20. From top to bottom, list the correct answers from your labeled cell diagram.
___________________________________________________________________________________________
21. When finished reading, click “Next Concept”
Concept 6: Chloroplast structure
22. Name the membranes inside the chloroplasts. _____________________________________________________
23. Name the stacks of thylakoids. __________________________________________________________________
24. From top to bottom, list the correct answers from your labeled chloroplast diagram.
___________________________________________________________________________________________
25. When finished reading, click “Next Concept”
Concept 7: Chlorophyll
26. Where specifically can the chlorophyll molecules be found? ___________________________________________
27. Does the absorption spectrum match the results from Engelmann?
YES
or
NO
28. When finished reading, click “Next Concept”
Concept 8: Cooperation of the Light Reactions and the Calvin Cycle
29. Name the two reactions of photosynthesis. _________________________________________________________
30. Name the 2 molecules of chemical energy created during the light reactions.
a. ___________________________________
b. __________________________________
31. What is created during the Calvin Cycle? __________________________________________________________
32. In which stage is oxygen created? ________________________________________________________________
33. When finished reading, click “SELF QUIZ”
Self Quiz
34. Take the 25 question quiz and record your score (Be honest!). Mr. Kobe scored 44 points on his first attempt at
this quiz.
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