"All humans are members of the same body Created from one essence"

"Human beings are members of a whole in creation of one essence and soul. If one member is afflicted with pain, other members uneasy will remain."

Monday, 23 August 2010

Plants Make Their Own Food, But How?

It was not until after World War II that scientists pieced together the story of how plants join carbon dioxide to a sugar to create food.

This happens through a set of steps that today are called the Calvin Cycle.

  • Green plants are the only living things which can make their own food.

  • This process is called photosynthesis

Making food

  • Leaves are green in colour because they contain chlorophyll.

  • Chlorophyll is needed in photosynthesis.

What does the plant need ?

For photosynthesis to take place a plant needs :

  • Carbon dioxide from the air
  • Light from the sun
  • Water from the rain
  • Chlorophyll from the leaves

What then … ?

  • When the plant has all of these things

photosynthesis can take place.

  • The plant produces sugar and oxygen.

A closer look at photosynthesis

2. Light in

Oxygen out

1. Carbon dioxide in

3. Water in

Food out

4. Chlorophyll is already in green leaves

No comments: