P H O T O S Y N T H E S I S - Copley-Fairlawn
NAME ______________________________________________ DATE _____________________
Chapter 6: Photosynthesis WebQuest
WEBSITE 1:
Answer the following questions while watching the video.
1. On average, what percentage of the food we eat on a daily basis comes from carbohydrates?
2. What are the pores in a plant's skin called? ___________________________
3. The sun helps plants transform carbon dioxide into a simple carbohydrate called –
4. What's another name for cellulose? ____________________________________________
5. Which organelle is ultimately responsible for breaking down carbohydrates into usable energy at the molecular level? _______________________________
Click “Dig Deeper” on the right side of the page. Read and complete the questions.
1. Light absorbing pigment is also known as ____________________________, and is found in the _________________________ of a cell.
2. This organelle allows the plant to absorb ____________________ from light.
3. Glucose is a type of ______________________________
4. Why is glucose important to plants and animals? ______________________________________
5. ATP is often called ________________________________________________________
Discussion.
6. Knowing what you know about photosynthesis, explain how the process may reduce global warming (caused by too much carbon dioxide in the atmosphere).
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WEBSITE 2:
Answer the following questions while watching the video.
1. Which of the following statements is true about the Calvin cycle?
a. It requires the presence of sunlight.
b. It happens in the stroma of a chloroplast.
c. It can happen if it has enough ATP even if no NADPH is available
d. All of the above.
2. Ribulose bisphosphate carboxylase (Rubisco) has the job of –
a. Connecting carbon from CO2 to RuBP
b. Catalyzing the reconstruction of ribulose bisphosphate
c. Delivering hydrogen for the conversion of G3P to PGA.
d. Ensuring that NADPH delivers the hydrogen to the correct location.
3. How many repeats of the Calvin cycle are needed to make one glucose molecule? _________
4. Cycles are beneficial in living systems because –
a. They are efficient c. they save energy
b. They allow repeated use of limited resources d. all of the above
WEBSITE 3:
What is Photosynthesis?
1. Where on the plant does photosynthesis take place? ____________________________
2. The energy from the sun enters into what organelle in the plant? ______________________
3. How does the plant get water for photosynthesis? ___________________________
4. What gas enters the plant for photosynthesis? ____________________________
5. Where does it enter the plant? ______________________________
6. What gas exits the plant during photosynthesis? ________________________________
7. Where does it exit the plant? _____________________________
8. What is the overall equation for photosynthesis?
WEBSITE 4:
What is ATP?
1. How does energy get converted from food molecules to muscles?
2. According to the webpage, the analogy for ATP is that ATP works like a rechargeable –
3. Click on the arrow to the next page. Pull apart the ice cream. What happens when food is broken down in the body?
4. Pull a Phosphate from the recharged ATP, what happened?
WEBSITE 5:
Illuminating Photosynthesis
1. Click “Launch Interactive”
2. Read the introductory poem.
3. Click on “The Cycle” at the top of the box
4. Click on each of the following items, and explain what happens:
a. The shade over the window:
b. The container of water:
c. The child:
5. What gas does the child provide for the plant to use?
6. What gas does the plant provide for the child to use?
7. Will the plant continue to produce this gas if the shade over the window is closed? (try it out to see!)
8. According to this animation, what 3 main things does the plant need for photosynthesis to occur?
a) _____________ b) ________________________ _c)______________________
9. Click on “The Atomic Shuffle” at the top of the box.
10. Read the introductory poem, and click on “next”
11. What molecule is shown in the leaf? ___________________
12. According to the reading, these molecules “do not come from the tap.” What two places do they come from?
a) ______ b) _______
13. Click on “next” and watch carefully. You may click on “replay” to watch this again.
14. What is “stripped” from each water molecule? ________
a) From where does the cell get the energy to do this? ____________________
b) The remaining atoms form pairs. What is this gas? __________________
c) Where does it go after this? ____
15. Click on “next”
16. What gas enters the leaf? _______________________
a) This gas enters through “holes” in the leaf. What are they called? ________________
17. Click on “next”
18. What molecule is formed once again?
19. Click on “next”
20. Another molecule is formed (“and boy is it sweet”). What is the name of this molecule? ______________________
21. What is the equation for photosynthesis?
22. Click on “Three Puzzlers” at the top of the box.
23. Answer each of the following questions, and explain in your own words.
a) Can a tree produce enough oxygen to keep a person alive? Explain.
__________
__________
__________
b) Can a plant stay alive without light? Explain.
__________
__________
c) Can a plant survive without oxygen? Explain.
__________
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