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(ii) Quantum requirement in photosynthesis = 8, i.e., 8 quanta of light are required to evolve one mol. 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. Magnitude of Photosynthesis: Only 0.2% of light energy falling on earth is utilized by photosynthetic organisms. Report ; The substances are transported to the storage organs of roots, fruits and seeds. The translocation takes place in the sieve tubes with the help of adjacent companion cells. Out of this only 2.2 x 10 13 tonnes are present in the atmosphere @ 0.03%. Thank u 1 Thank You ... Write the electronic bond of Mgcl2. CBSE > Class 10 > Science 2 answers; Dr. Jasmine Kaur 10 months, 2 weeks ago. (iii) Hence quantum yield = 1 /8 = 0.125 (i.e., a fraction of 1) as 12%. ... Write a balanced chemical equation to represent the process of photosynthesis. For any plant performing photosynthesis, four factors influence this process. ICSE Solutions for Class 10 Biology – Photosynthesis. (ii) To remove all starch from the leaves of the plant. In the process of photosynthesis, the carbohydrates are synthesized from CO2 & H2O in presence of sunlight & chlorophyll and O2 is released. CO2, water, light, and chlorophyll are the raw materials for photosynthesis. of O 2. The protein complexes and the pigment molecules help in the production of NADPH and ATP. Class 10 Science Chapter 6 Extra Questions and Answers Life Processes. 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. The process of light reaction is given below- 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. 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. (iii) (1) To kill the cells. The total carbon dioxide available to plants for photosynthesis is about 11.2 x 10 14 tonnes. Phloem transports soluble products of photosynthesis, amino acids, and other substances. 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. Answer: (i) That light is necessary for photosynthesis. Best Answer. The transport of soluble products of photosynthesis is called translocation. Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. Answer of Write the Mechanism of Photosynthesis. The other three factors do not play a critical role in it. But, in case of light dependent reaction or light reaction of photosynthesis, it is most influenced by presence or absence of light. Light energy is absorbed by chlorophyll molecules and is utilized for splitting water molecules into hydrogen and oxygen. Emerson effect and Red drop: R. Emerson and C.M. Mechanism of photosynthesis Report ; Posted by Dr. Jasmine Kaur 10 months, 2 weeks ago. Organs of roots, fruits and seeds a critical role in it materials for.... Class 10 Science Chapter 6 Extra Questions and answers Life Processes photosynthesis = 8 i.e.! Carbon dioxide available to plants for photosynthesis is about 11.2 x 10 13 tonnes are present in sieve... Reaction of photosynthesis: Only 0.2 % of light energy falling on earth is utilized photosynthetic! The storage organs of roots, fruits and seeds 0.03 % other three factors do not play a critical in... 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