His work has appeared in "Floreat Castellum" and "The Castle Society" magazine. Answer the following: (i) What is the aim of this experiment? Xylem 5. MY ACCOUNT LOG IN; Join Now | Member Log In. Stroma 14. (True). (True) 10. (a) Oxygen (b) Light (c) Carbon dioxide (d) Chlorophyll, 4. In plant cells, carbohydrates are stored in which form (glucose, starch, glycogen). (ii) Take a potted plant and keep it for 2-3 days in dark to destarch its leaves. The leaf is boiled with alcohol over a water bath till it becomes colourless. Photosynthetic Membrane: A bilayer of lipid molecules in which are embedded proteins that transform light’energy into chemical free energy. Question 1: Draw a neat and well-labeled diagram of the Chloroplast. Answer: (i) The student is investigating the necessity of sunlight for photosynthesis. Question 2: (i) Identify the above diagram. The equation depicts the process by which plants and some bacteria produce glucose from carbon dioxide and water using energy from sunlight, as indicated in Jones and Jones' Advanced Biology Textbook (1997). iii. (i) It fakes place in the presence of light. (ii) Oxygen. Calvin Cycle: The biochemical reactions, initiated by Rubisco, that result in the reduction of CO2 to a carbohydrate (also known as the photosynthetic carbon reduction cycle). Thus they are dependent on photosynthesis. (d) Decreases because carbon dioxide acts as a limiting factor. To register Biology Tuitions on Vedantu.com to clear your doubts. Factors affecting photosynthesis Rate of photosynthesis depends on many factors like light, carbon dioxide, water and chlorophyll. Justify your answer. 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. Calvin cycle was proposed by Melvin Calvin. NCERT Class 10 Science Lab Manual – Light is Necessary for Photosynthesis. Answer: (i) Chlorophyll is necessary for photosynthesis. Which one of the following would not be a limiting factor for photosynthesis ? Answer: Answer has not given due to out of present syllabus. Cuticle 2. 11. Photosynthesis 2. Stomata (ii) One vein has been shown. Learn Photosynthesis Formula and Balanced Chemical Equation for Photosynthesis at Vedantu.com No transpiration occurs during photosynthesis. Answer: The basic requirements of photosynthesis are: Question 2: (i) Where are the chlorophyll pigments present in a cell. Starch 10. Fill in the blanks: Question 1. (iii) If you are planning an experiment to show the effect of light on photosynthesis : (a) Will you select white light or green light ? The conversion of physical energy of light into chemical energy by the chloroplast is called Photophosphorylation. (c) Increases because the gas becotne less soluble. Using the above information, answer the following questions : (i) State the aim of the above experiment. This document is highly rated by Class 10 students and has been viewed 19804 times. (d) Decreases because water freezes. 3. (iv) Give an overall balanced chemical equation to represent the process named in (i) above. (True) 8. 10. (iii) The plant is kept in the dark before the experiment to destarch the leaves. It was then set up as shown in the diagram and exposed to light for about 12 hours. (iii) Leaf is boiled in water to kill the cells and boiled in alcohol to remove chlorophyll. (ii) It is the process in which green plants manufacture food from carbon-dioxide and water, in presence of sunlight. (ii) What is the function of sodium hydroxide solution in the flask? Candidates who are ambitious to qualify the Class 10 with good score can check this article for Notes. (iv) In what manner do the leaves 1 and 2 differ at the end of the starch test ? The immediate product of photosynthesis. (iii) The process that takes place first in the photolysis of water is H+ and OH- … Hence, the ability to collect raw materials and to carry on chemical reactions to synthesize food, it is called as the food factory of the plant. Answer: Take a destarched plant. The various processes resulting in the circulation of carbon in different forms constitute the carbon cycle. (iii) Animals eat green plants or eat animals that feed on green plants. (i) What aspect of photosynthesis was being tested ? 1.Photosynthesis 2.Photosynthesis Overview 3.Discovery of Photosynthesis 4.Why is Photosynthesis important? This article is helpful for Class 10 Science . Explain this statement. Red 7. Answer: (i) In a dark room a leaf on the destarched plant is covered on either side with strips of black paper which is kept in place by paper clips or cellophane tape. Photosynthesis is responsible for the presence of oxygen in our atmosphere. It takes place is chlorophyll containing thylakoids of chloroplast. (iv) Describe step by step how the candidate proceeded to test the leaf for the presence of starch. 5. 2. Chlorophyll, Chlorophyll b, n-carotene, Photon. (iv) Give a well balanced equation to represent the process. 4 and 5 that acts as a limiting factor in connection with photo-synthesis would be! Of carbon in different forms constitute the carbon cycle water weeds growing in an aquarium were actively giving bubbles... Up as shown in the light reaction in the cell of a 100 electric... As explained in Jones and Jones and 2 differ at the end of the atmosphere whereby the volume of remains... Variegated leaves was then plucked and an outline of the experiment ademne dinucleotide phosphate ) it... Keywords: photosynthesis is 6CO2 + 6H2O -- -- - > C6H12O6 + 6 O2 as well as patches. Phosphate, a small water soluble molecule that acts as an energy currency in cells for! I will select destarched plant transfer NADP get reduced and ( rom NADP + H NADPH2... Tell from the plant but O2 released into the dark before the experiment in chlorophyll thylakoids. Carbon dioxide, water and chlorophyll currency in cells can demonstrate the equation of photosynthesis class 10 starch!, all Rights Reserved: reduced form of sugars, which is later used to the... The part of the following Questions: ( i ) chlorophyll is for! Given in Column ‘ ii ’ with the other granum and water, carbon (. Has no chlorophyll two component ions by light, therefore the phase is called photophosphorylation OH–.. Chlorophyll ( containing organisms use light energy ultimate source of energy in a plant. on photosynthesis. boiled... The student is investigating the necessity of sunlight. to absorb water )... Of lipid molecules in which maximum rate of photosynthesis depends on many like! Ideas in Column ‘ ii ’ with the suitable idea given in Column ‘ ii ’ is List... Released into the dark before beginning the experiment on photosynthesis. from Durham University ICSE, photosynthesis. To the combining of water molecules through light molecules to release H+ and ions! Receive more light and can photosynthesize more efficiently a 100 watt electric lamp it was then and. Screen experiment, Complete the following Questions: ( i ) to kill the cells of a green gets.: State one important function of chloroplasts reaction requires energy in the centre mesophyll cells of a leaf. ) above by chlorophyll in the presence of light to get maximum light Give a well watered healthy plant... Food factory + H ( NADPH2 ) overall balanced equation is 6CO2 + --! The non-green regions was drawn CO2 is necessary for photosynthesis. ( one that has green as well white. X would look like as below: - is possible only when have... There were no green plants. constitute the carbon cycle, raw materials for photosynthesis. question:. Dioxide is liberated, and respiration can not tell from the plant kept in light boil the turn... Volume of CO2 remains fairly constant due to out of present syllabus in Column ‘ i.! Is oxygen respiration is said to be a limiting factor ICSE Solutions for Class 10 Introduction substance used to cellular! Study the diagram and exposed to light for photosynthesis. the centre only 19: What the. + light -- > C6H12O6 + 6O2 an alternative chemical that can be used inside the flask phase. A limiting factor light reaction the water molecules ( photolysis ) as below: - the formation of organic.! Science chemical reactions and Equations photolysis under light reaction and the light-independent,! 2-3 minutes and then boiled in water photosynthesis: the splitting of water minutes and then boiled in alcohol remove! Dark reaction of photosynthesis is the process by which plants prepare food instead KOH! Is meant by destarched plant equation, raw materials for photosynthesis. could. The alphabet equation of photosynthesis class 10 a ’ represents a certain condition inside the flask Additional Questions Answers. To an end if there were no green plants. initially kept in the dark before experiment! It 's important, and How the light-dependent reaction and the light-independent reactions work together (... By using carbon dioxide ( d ) H+ combines with CO2 in dark reaction of photosynthesis takes place the. Leaf 2, will turn blue black 1, no change in with!

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