Name________________________________ Date__________________ Block_______
ONLINE TUTORIAL: Photosynthesis in Depth
Directions:
1. Go to the following website: http://tinyurl.com/qa5x7go OR
http://www.mhhe.com/biosci/bio_animations/02_MH_Photosynthesis_Web/index.html
Or http://preview.tinyurl.com/qa5x7go
2. Click on the OPTION Button on the bottom right corner and turn on captions.
3. Watch the whole video first! It takes 7 minutes 25 seconds.
4. Re-watch the video and answer the questions along the way, pausing as needed.
1. In order for plants to photosynthesize, what three things are needed?
2. At the end of photosynthesis, what two things are produced?
3. What is considered the “by-product” of photosynthesis?
4. Where does the energy for photosynthesis originate?
5. What is the smallest unit of light known as?
6. Photosynthetic organisms can use what part of the electromagnetic spectrum?
7. What molecules facilitate the capture of wavelengths of light?
8. Which wavelengths of light do green plants absorb?
9. Which wavelengths of light do green plants reflect?
10. Photosynthesis occurs in which organelle of a plant cell?
11. What are the two stages of photosynthesis?
12. Where in the chloroplast is glucose synthesized?
13. Where in the chloroplast is light absorbed?
14. What does a photosystem contain?
15. What happens to excited electrons from Photosystem II?
16. What molecule splits inside the thylakoid space in order to replace the lost electrons
from Photosystem II?
17. What gas is created when what described in #16 occurs?
18. As electrons are passed along the electron transport chain, what is being actively
pumped from the stroma into the thylakoid to create a concentration gradient?
19. What enzyme is located within the thylakoid membrane that used the
concentration gradient in order to attach a phosphate group to ADP?
20. The electrons passed from Photosystem I to the electron transport chain are used to
reduce what electron carrier?
21. What two molecules formed in the Light Dependent Reactions of the thylakoid are
used to fuel the Calvin Cycle Reactions in the stroma?
22. How many times does the Calvin Cycle have to run in order to make a single
molecule of glucose?
23. When glucose combines with fructose, it forms what molecule used to transport
carbohydrates throughout their system?
24. Name two uses for sugars within plants.
25. Give two reasons why plants are considered the foundation for life on Earth.
26. Draw a concept map below to show the steps of photosynthesis. Try to include
pictures. Your map should cover this entire page and be used as a study tool.
Start at the sun and end with sugars!