CELULAR RESPIRATION WEBQUEST
1. GO TO THE FOLLOWING SITE
Biolinks:
http://www.msu.edu/%7Elangley6/chs/Bio/biolinks.htm
Glycolysis: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/G/Glycolysis.html
Krebs Cycle:
http://www.lions.odu.edu/%7Eknesius/miniunits/epsilon/epsilon6.html
Photosynthesis: This URL needs to be pasted into your address bar.
http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPS.html
The webquest has five sections:
a. Introduction
b. Task
c. Process
d. Evaluation
e. Conclusion
Introduction:
Once the energy that was in sunlight is transformed into chemical energy, often by photosynthesis, the organism has to now convert the chemical energy into a usable form. It may seem a bit odd for there still to be more steps. After all, when you eat a candy bar isn't the sugar in the candy bar "burnt" by the body to provide energy? Well the answer is yes and no. First of all when we burn something normally in the air we combine that substance with oxygen releasing energy from the substance. Indeed, an analogous process does happen in our bodies.
What goes on in living things is not really like burning because the molecules from which we harvest energy give up their energy in a controlled fashion rather than all at once as what happens in a fire. Think of a car. All the energy in the gas tank when you get in your car is not released all at once but rather in small bursts which allow you to control the car's movement. In the same way cells take the energy from the "food" and package that energy into manageable bursts that provide just the right amount of energy for the organism's activities.
For the task find out the answers to the following questions:
1. Where is energy produced in your body?
2. Outline the processes that produce energy in your body.
3. Explain thoroughly the difference between how plants produce energy and how you (a human person) produces energy.
4. Diagram the human respiration process.
5. Find one fact that you found interesting on your quest.
The Process:
To clarify things for you. First find out where specifically energy is made in your body. Name the organelle and tell exactly where it is located.
2. Find and list out (or diagram) all the processes of Cellular Respiration. (Hint- Glycolysis to Krebs/ glycolysis to alcoholic fermentation/ glycolysis to lactic acid fermentation. Note exactly how many ATPs are made in each process.
This diagram should be ORIGINAL. Do not copy from internet.
(25 points)
3. Find and diagram the process of Photosynthesis. (25 points)
4. In your own words, describe fully five main differences between photosynthesis and cellular respiration. Make sure your answers are in complete sentences. (25 points)
Conclusion:
Answer these questions fully and in complete sentences, (worth 25 points each if done correctly)
1. What have you learned regarding cellular respiration? Write an intelligent paragraph listing as many things as possible that you have learned.
2. If plants did not perform the process of photosynthesis, how would we adapt and survive. (Hint: there are 2 ways to produce energy. Photosynthesis is one. Discuss the other.)
3. Which body organ has the highest concentration of mitochondria?
4. Do you think that some people’s bodies produce more energy than others?
Due Date: October 21, 2008
