CIE IGCSE Biology: 复习笔记:6.1.1 Photosynthesis

CIE IGCSE Biology: 复习笔记:6.1.1 Photosynthesis

Photosynthesis

 

 

  • Green plants make the carbohydrate glucose from the raw materials carbon dioxide and water
  • At the same time oxygen is made and released as a waste product
  • The reaction requires energy which is obtained by the pigment chlorophyll trapping light from the Sun
  • So photosynthesis can be defined as the process by which plants manufacture carbohydrates from raw materials using energy from light
  • It can be summed up in the following equation:

 

Exam Tip

If asked for the raw materials required for photosynthesis, the answer is carbon dioxide and water.

 

Although required for the reaction to take place, light energy is not a substance and therefore cannot be a raw material.

 

Photosynthesis Word Equation

Photosynthesis-word-equation

Photosynthesis word equation

How-plants-get-the-materials-they-need

How plants get the materials they need

转载自savemyexams

更多IGCSE课程
翰林国际教育资讯二维码