1 / 8

Photosynthesis

Photosynthesis. 12/03/12. Activity Section A worksheets. A tree can be very heavy. Wood is tough and strong. What do you think the wood that makes up a tree is made of? Where does the “stuff” making the wood come from?. Photosynthesis. The way in which green plants make their food.

natara
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 12/03/12

  2. ActivitySection A worksheets • A tree can be very heavy. Wood is tough and strong. What do you think the wood that makes up a tree is made of? Where does the “stuff” making the wood come from?

  3. Photosynthesis • The way in which green plants make their food Chemical energy Light energy Photosynthesis Carbon Dioxide + Water Glucose + Oxygen Sunlight Chlorophyll

  4. Factors needed for photosynthesis • Carbon dioxide • Plants get CO2 from the air • CO2 passes into the leaves through openings called the stomata • Water • Plants get water from the soil • Water passes into the roots up the xylem and is distributed to the leaves of the plant • Light • Plants get light from the sun • The light is absorbed by the leaves • Chlorophyll • Plants make chlorophyll • Its is a green dye and allows plants to absorb light

  5. Products of photosynthesis • Glucose • The food made by the plant is called glucose • It can be used to provide energy for respiration • It can be used to form starch in the plant • It can be used to form cellulose for ne cell walls • Oxygen • The gas resulting from photosynthesis is oxygen • It can be used for respiration to provide energy for the leaf • Or it can be released from the leaf out into the air

  6. Photosynthesis rap • An interesting rap explaining photosynthesis

  7. Tropism • Tropism is the change in growth of a plant in response to an outside stimulus • Phototropism • is the way that a plant changes its growth in response to light • Geotropism • is the way that a plant changes its growth in response to gravity

  8. Homework • Complete the remainder of the worksheet for homework

More Related