ICSE Class 10 Biology Chapter 6 Photosynthesis Revision Notes

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ICSE Class 10  Chapter Biology Chapter 6 Photosynthesis Revision Notes

 

Revision is very important for better conceptual understanding and securing good marks, and for Revision, Revision Notes are always considered the best. ICSE Class 10 Biology Chapter 6 Photosynthesis Revision Notes are one of the most important pieces of study material that students can receive, as it will aid them to study better and reduce the level of stress that students face during the hectic year

We, at Swiflearn, provide ICSE Class 10 Biology Chapter 6 Photosynthesis Revision Notes in an easy-to-understand, free downloadable PDF format for the students to frame a better understanding of the topic. Free ICSE Class 10 Biology Chapter 6 Photosynthesis Revision Notes provided here are prepared by Subject Matter Experts at Swiflearn in accordance with the latest ICSE Class 10 Syllabus and CISCE guidelines. These ICSE Class 10 Biology Chapter 6  Revision Notes will definitely help students to save a lot of time during their examinations.

ICSE Class 10 Biology Chapter 6 Photosynthesis Revision Notes by Swiflearn are so far the best and most reliable Revision Notes for ICSE Class 10 Biology. These ICSE Class 10 Biology Chapter 6 Revision Notes will surely increase your confidence and reduce the anxiety of examination. Students can download the FREE PDF of  ICSE Class 10 Biology Chapter 6 Photosynthesis Revision Notes and use it to clear all their doubts and queries and hence, excel in their examination.

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Photosynthesis

 

The process by which green plants are able to synthesize food from carbon
dioxide and water, in the presence of chlorophyll and light energy.

 

Photolysis of water: Chemical decomposition of water induced by light or other radiant energy. Photolysis plays an important role in photosynthesis, during which it produces energy by splitting water molecules into gaseous oxygen and hydrogen ions.

Biosynthetic phase: The process by which carbon dioxide is reduced to carbohydrates and the process is termed as carbon fixation. It makes use of adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate (NADPH) produced in the light phase. This process occurs in the stroma of chloroplasts with the help of a series of enzyme-catalysed reactions.

Photophosphorylation: In the process of photosynthesis, the phosphorylation of ADP to form ATP using the energy of sunlight is called autophosphorylation.

 

 

About Photosynthesis

 

  • In photosynthesis, the energy from sunlight is used to convert carbon dioxide into sugar and oxygen is the by-product. It can be represented by the following equation:

6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O (in the presence of sunlight and
chlorophyll)

  • Plants also respire by taking in oxygen and giving out carbon dioxide. In respiration, gaseous exchange occurs. Hence respiration and photosynthesis are opposite processes.
  • Photosynthesis not only provides all living beings with food; it also maintains oxygen levels in the atmosphere. Therefore, you can say photosynthesis is the process that supports life on earth.

 

Chlorophyll

 

  • Chlorophyll is a photosynthetic substance that is able to trap sunlight and use it to generate sugars (nutrition). It is found in plants, algae, chloroplasts and cyanobacteria (thylakoids).
  • It is made of four kinds of pigments namely chlorophyll a, chlorophyll b, carotene, and xanthophyll.
  • It also gives the green colour to the chloroplast and to the plant in general. Leaves appear green in colour because chlorophyll reflects green light and absorbs all other wavelengths of light.

 

 

ICSE Class 10  Chapter Biology Chapter 6 Photosynthesis Revision Notes PDF

 

 

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