Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. ICSE Solutions for Class 10 Biology – Photosynthesis. Class 10 Science Chapter 6 Extra Questions and Answers Life Processes. Answer: (i) That light is necessary for photosynthesis. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. The protein complexes and the pigment molecules help in the production of NADPH and ATP. For any plant performing photosynthesis, four factors influence this process. Light energy is absorbed by chlorophyll molecules and is utilized for splitting water molecules into hydrogen and oxygen. In the process of photosynthesis, the carbohydrates are synthesized from CO2 & H2O in presence of sunlight & chlorophyll and O2 is released. The transport of soluble products of photosynthesis is called translocation. The total carbon dioxide available to plants for photosynthesis is about 11.2 x 10 14 tonnes. Emerson effect and Red drop: R. Emerson and C.M. But, in case of light dependent reaction or light reaction of photosynthesis, it is most influenced by presence or absence of light. Thank u 1 Thank You ... Write the electronic bond of Mgcl2. (ii) Quantum requirement in photosynthesis = 8, i.e., 8 quanta of light are required to evolve one mol. The substances are transported to the storage organs of roots, fruits and seeds. (ii) To remove all starch from the leaves of the plant. The process of photosynthesis occurs in two phases – the light reactions and the dark reactions.. Light reactions – As the name suggests, this reaction takes place in the presence of light. (iii) Hence quantum yield = 1 /8 = 0.125 (i.e., a fraction of 1) as 12%. The translocation takes place in the sieve tubes with the help of adjacent companion cells. (iii) (1) To kill the cells. Light reaction is the first stage of photosynthesis process in which solar energy is converted into chemical energy in the form of ATP and NADPH. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds. of O 2. CO2, water, light, and chlorophyll are the raw materials for photosynthesis. Phloem transports soluble products of photosynthesis, amino acids, and other substances. Out of this only 2.2 x 10 13 tonnes are present in the atmosphere @ 0.03%. ... Write a balanced chemical equation to represent the process of photosynthesis. Report ; Answer of Write the Mechanism of Photosynthesis. Best Answer. Mechanism of photosynthesis Report ; Posted by Dr. Jasmine Kaur 10 months, 2 weeks ago. CBSE > Class 10 > Science 2 answers; Dr. Jasmine Kaur 10 months, 2 weeks ago. In this page, you can find CBSE Class 10 Science Chapter 6 Extra Questions and Answers Life Processes Pdf free download, NCERT Extra Questions for Class 10 Science will make your practice complete. The other three factors do not play a critical role in it. Magnitude of Photosynthesis: Only 0.2% of light energy falling on earth is utilized by photosynthetic organisms. The process of light reaction is given below- Electronic bond of Mgcl2 13 tonnes are present in the sieve tubes with the of... Starch from the leaves of the plant the atmosphere @ 0.03 % quanta of light are required to one! Green plants and certain other organisms transform light energy falling on earth is utilized for splitting water molecules into and! The sieve tubes with the help of adjacent companion write the mechanism of photosynthesis class 10 for photosynthesis substances! 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