Web Quest answers
ATP, Photosynthesis and Cellular
Respiration Web quest
What is ATP?
http://www.biologyinmotion.com/atp/index.html
1. How does energy get converted
from food molecules to muscles?
ATP
2. According to the webpage, the
analogy for ATP is that ATP works
like a rechargeable Battery
3. Click on the arrow to the next page.
Pull apart the ice cream. What
happens when food is broken down
in the body? Its broken down into
chemical energy
What is Photosynthesis?
http://www.biology.ualberta.ca/facilities/multimedia/uploads/alberta/Photo.html
4. Where on the plant does photosynthesis take place? Leaf
5. The energy from the sun enters into what organelle in the
plant? Chloroplast
6. How does the plant get water for photosynthesis?
Roots
7. What gas enters the plant for photosynthesis?
Carbon Dioxide
What is Photosynthesis?
http://www.biology.ualberta.ca/facilities/multimedia/uploads/alberta/Photo.html
8. Where does it enter the plant?
Stomata
9. What gas exits the plant during
photosynthesis?
Oxygen
10. Where does it exit the plant?
Stomata
11. What is the overall equation for
photosynthesis?
– 6CO2 + 12H2O + sunlight -> C6H12O6 + 6H2O + 6O2
The light & Dark Reaction:
http://library.thinkquest.org/C004535/photosynthesis.html
12. Briefly describe the light reaction
(Photosystems).
- Depends on light energy to produce glucose.
ATP is produced that will help turn CO2 into
glucose.
13. Briefly describe the Dark Reaction (Calvin Cycle).
– Process that occurs without light. It fixes the carbon
molecules in carbon dioxide into glucose.
Overview of Photosynthesis Labeling.
Label the following picture below.
http://www.phschool.com/science/biology_place/biocoach/photosynth/overview.html
What is Cellular Respiration?
29. What is the definition of Cellular Respiration?(in
purple) - breaking down sugar in the presence of
oxygen (aerobic)
30. What happens during cellular respiration?
Sugar is broken down to CO2 and H2O, and in the
process, ATP is made that can then be used for
cellular work
31. What’s the equation for Cellular Respiration?
C6H12O6 + 6O2 ------> 6CO2 + 6H2O + ~38 ATP
Stages of Cellular respiration.
http://www.essortment.com/understanding-cellular-respiration-26483.html
31. What are the three
steps of Cellular
respiration?
Glycolysis, Krebs Cycle,
Electron Transport
Chain
32. What is an
alternative to cellular
respiration?
Fermentation
Glycolysis
33. What does glycolysis involve? the breaking
down of glucose molecules from
carbohydrates into molecules of pyruvate,
which will continue on to the Krebs Cycle.
34. Where does it occur? in the cytosol of the
cell
35. Does it require oxygen? No
36. Glycolysis produces: 2 ATP molecules, as
well as a release of 2 water molecules and 2
NADH molecules (these are another type of
energy-rich molecule)
Kreb’s Cycle
37. Which organelle does this
take place? Mitochondria
38. What is produced once a
carbon & two oxygen
molecules are removed from
pyruvates? Aceytl CoA
40. Does it need oxygen? Yes
41. This cycle produces: 4
carbon dioxide molecules, 6
NADH molecules, 2 ATP
molecules and 2 FADH2
molecules (yet another
energy-yielding molecule).
Electron Transport Chain
42. What is the electron transport chain? The
electron transport chain is a network of
electron-carrying proteins located in the inner
membrane of the mitochondrion.
43. The electron transport chain produces the
remaining 32-34 ATP’s
Fermentation http://en.wikipedia.org/wiki/Cellular_respiration
44. What is the difference between lactic acid
fermentation & ethanol fermentation?
*Lactic Acid- Waste products released by the
skeletal muscles.
* Ethanol- Waste products released by yeast.
Overview of Cellular
Respiration Labeling.
Label the following picture
to the left.
http://upload.wikimedia.org/
wikipedia/commons/1/1d/Cell
ularrespiration.JPG