1 / 16

Why do we eat?

Why do we eat?. Human are heterotrophs Hetero - other, different trophe — Nourishment, food. Plants are autotrophs Auto- self Trophe- nourishment, food. We eat because we need energy!. Energy is produced in the. mitochondria. Animal and Plant cells. Energy storage molecule.

herman
Download Presentation

Why do we eat?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Why do we eat? Human are heterotrophs Hetero- other, different trophe — Nourishment, food Plants are autotrophs Auto-self Trophe- nourishment, food

  2. We eat because we need energy! • Energy is produced in the mitochondria

  3. Animal and Plant cells

  4. Energy storage molecule • ATP: Adenosine Triphosphate • 1 adenine • 1 ribose • 3 phosphates

  5. ATP: adenosine triphosphate • What does tri mean?

  6. Energy storage molecule ADP: adenosine diphosphate What does di mean?

  7. Changing from ATP to ADP What is the process called where H2O breaks apart a larger molecule into a smaller parts?

  8. Phosphate bonds • Bonds connecting phosphate get broken • Energy is released

  9. Release of energy

  10. Compare: ATP and ADP

  11. Energy difference • ATP: High energy • Fully charged battery • ADP: Low energy • Battery on low power • What do you do with you phone when the battery is running out?

  12. ATP Cycle

  13. How much ATP is in one cell? • each cell contains about one billion ATP molecules • amount is sufficient for only a few minutes: rapidly recycled

  14. Energy in Cells Human body has ~50-100 trillion cells

  15. Total ATP in the human body (on average) • Given a hundred trillion cells in the average male, about 1023 or 1 sextillion ATP molecules normally exist in the body. • 1,000,000,000,000,000,000,000 • For each ATP “the terminal phosphate is added and removed 3 times each minute” http://www.trueorigin.org/atp.asp

  16. ATP Foldable • This is an individual assignment- • Each person will create an ATP foldable. Examples from previous biology students are at the front for you to view.

More Related