1 / 14

Photosynthesis

Photosynthesis. Kim Lachler 2010. NCES 6 L 1.2. Photosynthesis. Plants can make their own food through a process called Photosynthesis. Photo = light Synthesis = put together. Why is this important to you?.

jela
Télécharger la présentation

Photosynthesis

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. Photosynthesis Kim Lachler 2010 NCES 6 L 1.2

  2. Photosynthesis • Plants can make their own food through a process called Photosynthesis. • Photo = light • Synthesis = put together

  3. Why is this important to you? • You eat the plants or the animals whom eat the plants so that you can get energy so you can play… work…LIVE!

  4. Stomata • First you need to know about stomata. • It is part of a leaf where the gas (carbon dioxide and oxygen) can go in and out of the plant (kind of like breathing).

  5. Stoma Stoma – opening in the leaf. Guard cell – controls the opening in the leaf. The stomata are mainly open during the day. Why do you think that is? Plants need sunlight to conduct photosynthesis.

  6. Transpiration • Water evaporates from the stomata. • It is like the plant is sweating. • Water does not enter through the stomata. That is the job of the roots.

  7. Photosynthesis • It is similar to baking a cake. • You need raw materials • A chemical reaction happens • And you get an end product.

  8. Cake Eggs Flour Baking soda Water Photosynthesis Water (H2O)  roots Carbon Dioxide (CO2)  stomata Sunlight  leaves/green stems Raw materials

  9. Cake Oven set at 350° F for 30 minutes. Photosynthesis occurs with the help of Chlorophyll Chlorophyll: Found in chloroplasts in the cells of the leaves Makes leaves green Chemical reaction

  10. Cake: Cake (Chocolate cake, with chocolate icing, with chocolate ice cream, with…  ) Photosynthesis: Glucose (C6H1206) = sugar = food Oxygen (6O2) End Product

  11. Photosynthesis Chemical formula (chlorophyll) 6 CO2 + 6 H2O + light -------------- C6H12O6 + 6 O2

  12. Why Leaves Change Color in the Fall • Plants store the glucose (sugar) in its roots for food for the winter. • Cool nights and shorten days trigger this. • The chlorophyll breaks down and the real colors of the leaves are revealed. • Eating carrots is eating stored energy in roots.

  13. Quiz Video_Quiz__Photosynthesis.mov

  14. Bibliography • North Carolina Holt Science & Technology, Holt, Rinehart, and Winston, USA, 2005 • Farabee, Photosynthesis, http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookps.html accessed 6/3/10 • Discovery Education, http://streaming.discoveryeducation.com/ accessed 6/10/10

More Related