Uploaded on


More in: Education , Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads


Total Views
On Slideshare
From Embeds
Number of Embeds



Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

    No notes for slide


  • 1. How does the energy from
    the sun make it into our
    By: Jonathan
  • 2. First through…
  • 3. Photosynthesis
  • 4. 6CO2 + 6H2O + energy -->  6O2 + C6H12O6
    Plants absorb a common gas called carbon dioxide, pull water up through their roots and use light to make sugar. Plants use the sugar to grow. Plants give off oxygen as a by-product. The green parts of the plant makes the sugar and oxygen.
  • 5. Sun
    Photosynthetic cells may have thousands of chloroplasts . Chloroplasts in plant & algal cells absorb light energy from the sun during the light dependent reactions
  • 6. In the Chloroplasts
    Light Traveling
    When light strikes an object, it is absorbed, transmitted, or reflected . When all colors are absorbed, the object appears black
    When all colors are reflected, the object appears white
    If only one color is reflected (green), the object appears that color such as the Chlorophyll.
  • 7. In the thylakoid happens light dependent reactions. This system depends on sunlight for activation energy.
    Light is absorbed by chlorophyll a which "excites" the electrons in the chlorophyll molecule.Electrons are passed through a series of carriers and adenosine triphosphate or ATP (energy) is produced.
    H2O O2 + ATP + NADPH2
  • 8. Light is absorbed by the antenna pigments of photosystems II and I
    These excited electrons activate P700 in photosystem I which helps reduce NADP+ to NADPH//NADPH is used in the Calvin cycle.
    Still in the thylakoid
    The absorbed energy is transferred to the reaction center pigment, P680 in photosystem II, P700 in photosystem I
  • 9. CO2 diffuses into the stroma from surrounding cytosol
    An enzyme combines a CO2 molecule with a five-carbon carbohydrate called RuBP
    PGAL serves as the starting material for the synthesis of glucose and fructose
    Glucose and fructose make the disaccharide sucrose, which travels in solution to other parts of the plant
    Each PGA molecule receives a phosphate group from a molecule of ATP
  • 10. And the plant GROWS!!!
  • 11. Everyone needs ENERGY
  • 12. So after getting a Tan
  • 13. Boneshikwa Gets hungry
  • 14. So she goes out to eat the grass
  • 15. The grass that she eats gives her the energy she needs for her body to function otherwise known as…….
  • 16. Cellular Respiration
  • 17. Energy can be transformed from one form to another like photosynthesis converts light energy to chemical energy in which the turkey ate in the grass.
  • 18. The energy process
    happens in the
  • 19. ATP is energy carrying molecule used by cells to fuel their cellular processes.
    ATP is composed of an adenine base, ribose sugar, & 3 phosphate (PO4) groups.
  • 20. ATP is made & used continuously by cells
    Every minute all of an organism's ATP is recycled
  • 21. Enzymes help break & reform these high energy PO4 bonds in a process called substrate-level phosphorylation.
    When the high-energy phosphate bond is broken, it releases energy, a free phosphate group, & ADP.
  • 22. Second Energy
  • 23. Third Energy carrier
  • 24. Mitochondria Has
    Electron Transport Chain takes place in cristae
    Space inside cristae is called the matrix & contains DNA & ribosomes also the Krebs cycle takes place in it
  • 25. The energy in one glucose molecule may be used to produce 36 ATP it involves a series of 3 reactions…….Glycolysis, Kreb's Cycle, & Electron Transport Chain.
  • 26. NADH is energy
    2 ATP added to glucose (6C) to energize it.
    Glucose split to 2 PGAL (3C).
  • 27. If no oxygen is available to the cell (anaerobic), the pyruvate will be fermented
    Pyruvic acid from glycolysis diffuses into matrix of mitochondria & reacts with coenzyme
  • 28. Acetyl Co-A (2C) enters the Kreb's Cycle & joins with Oxaloacetic Acid (4C) to make Citric Acid
    Oxaloacetic acid is regenerated to start the cycle again
    Citric acid is oxidized releasing CO2 , free H+, & e- and forming ketoglutaric acid
    In Aerobic respiration
    Happens the Krebs Cycle
    Free e- reduce the energy carriers NAD+ to NADH2 and FAD+ to FADH2
  • 29. In the Electron transport
    A concentration gradient of H+ between the inner & outer mitochondrial membrane occurs
    H+ concentration gradient causes the synthesis of ATP by chemiosmosis
    Energized e- & H+ from the 10 NADH2 and 2 FADH2 are transferred to O2 to produce H2O
  • 30. This Whole process is the functions that keep the plant life alive and healthy. It also makes it look yummy to Boneshikwa the turkey and she eats.
  • 31. Then she gets to be a………
  • 32. And becomes
  • 33. DINNER!!
  • 34. Then we eat the turkey!
  • 35. And that’s how nuclear
    energy enters
    our body
  • 36. QUIZ!!!
  • 37. How does Photosynthesis start??
    -With the energy from the sun
  • 38. Where does the energy go?
  • 39. What light is reflected off the Chloroplasts?
  • 40. Light is absorbed by light pigments….?
    -Photosystems I and II
  • 41. The_____cycle is in Photosynthesis?
    -Calvin cycle
  • 42. What happens in the mitochondria?
    -The energy process
  • 43. What is the third energy carrier?
  • 44. What space in the mitochondria contain DNA and ribosomes?
  • 45. The energy in one glucose molecule may be used to produce how many ATPs?
  • 46. What cycle is in Cellular Respiration?
    -Krebs Cycle
  • 47. Great Job Your done!!!!!
  • 48. Bibliography:
    -About.com. New York times publisher, 2009. Web. 1 Dec. 2009. <http://biology.about.com/od/cellularprocesses/a/cellrespiration.htm>.
    -ESSORTMENT. Media Network, 2002. Web. 29 Nov. 2009. <http://www.essortment.com/all/cellularrespira_rmpr.htm>.
    -Think Quest. Tink Quest team, Jan. 1998. Web. 1 Dec. 2009. <http://library.thinkquest.org/3715/photo3.html>.
    -Wikipedia. Wikimedia Foundation, Inc. Wikipedia. Wikipedia, 22 Nov. 2009. Web. 1 Dec. 2009. <http://en.wikipedia.org/wiki/Photosynthesis>.
    -Purchon. Nigel Purchon, 1999-2000. Web. 27 Nov. 2009. <http://www.purchon.com/biology/aerobic.htm>.