C. Chlorine . A series of chemical reactions occur in very quick succession, initiated by light and therefore, the phase is called the photochemical phase. 6. Answer: Yes, plants having deep red, violet or brown colored leaves can also carry out photosynthesis because they contain chlorophyll. These are … Class 7 Science Chapter 1 Extra questions are given below, which may be considered as Important Questions also for the school exams. This video is unavailable. Light energy is absorbed by chlorophyll molecules whereas carbon dioxide and oxygen enter through the tiny pores of stomata located in the … community of Class 7. Describe the role of chlorophyll in the biochemical pathways of photosynthesis. Cover one leaf with black paper. They come in different shapes, sizes, and colors, and are generally dorso-ventrally flattened and thin. Find an answer to your question describe the role of leaves for photosynthesis lipu17 lipu17 01.04.2018 Science Secondary School Describe the role of leaves for photosynthesis 2 See answers Shiv4225 Shiv4225 HEY !!! Watch Queue Queue. Glucose is used as a food source, while oxygen and water vapor escape through open stomata into the surrounding environment. Plants use carbon dioxide, water, and sunlight to produce glucose, water, and ... A. The two most common types of chlorophyll are chlorophyll a, which is a blue-black ester with the chemical formula C 55 H 72 MgN 4 O 5, and chlorophyll b, which is a dark green ester with the formula C 55 H 70 MgN 4 O 6.Other forms of chlorophyll include chlorophyll c1, c2, d, and f. Geronoplasts refer to the chloroplasts of the leaves that help to convert into different other organelles when the leaf is no longer using photosynthesis usually in an autumn month. After being absorbed by the roots, water travels all the way through the stem to reach the leaves where the actual process takes place. Watch Queue Queue During photosynthesis a plant absorbs light energy using the pigment chlorophyll. 1 - Hydrogen is stored in leaves of plants.2 - Hydrogen combines with carbon dioxide to make glucose. What Is the Role of the Leaf in Photosynthesis. 3. Aug 31,2020 - What is the role of leaves in photosynthesis Related: Photosynthesis-Food Making Process in Plants, Nutrition in Plants, Class 7 Science | EduRev Class 7 Question is disucussed on EduRev Study Group by 800 Class 7 Students. Radiant energy is converted into chemical energy by photosynthesis. 0. The process by which plants make their own food in the presence of sunlight, carbon-dioxide present in air, water, minerals and chlorophyll present in leaves is termed as photosynthesis. All leaves have the same basic structure - a midrib, an edge, veins and a petiole. Here is how: Wide surface area Most green plants have leaves that are broad, flat, and exposed to capture as much of the sun’s energy (sunlight) needed for photosynthesis. All useful plant products are derived from the process of photosynthesis, e.g., timber, rubber, resins, drugs, oils, fibers, etc. What is the role of leaves in photosynthesis Related: Photosynthesis-Food Making Process in Plants, Nutrition in Plants, Class 7 Science over here on EduRev! Take a plant with destarched leaf. Photosynthesis in Higher Plants Class 11 Notes Biology Chapter 13. 6 months ago. churchm. Photosynthesis occurs when plants use light energy to convert carbon dioxide and water into glucose and oxygen. This green pigment captures the sun's energy in photosynthesis. 28 times. The photosynthesis process takes place in the leaves of plants. 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