Answer: In respiration, energy is released as a result of oxidation of food, whereas in photosynthesis it is stored up in a carbohydrate molecule. (iv) Leaf A will be yellowish-white. (i) What is the object of the experiment ? This article is helpful for Class 10 Science . Free Energy 4. 3. 4. (a) Oxygen (b) Light (c) Carbon dioxide (d) Chlorophyll, 4. Match the term in Column ‘II’ with the suitable idea given in Column ‘I’. (True) 19. Name only one plant, you are familiar with which has no chlorophyll. 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. In photosynthesis radiant energy is converted into which from ? 10. Photosynthesis is responsible for the presence of oxygen in our atmosphere. Check back soon! Grana, Thylakoid, Stroma, Root. NADPH2 8. (ii) Label the guidelines 1-3. Answer: Question 2: Draw a neat and well-labeled diagram of the apparatus you would set up to show that oxygen is given out during photosynthesis. In an ionic equation, not only total number of atoms on both sides of equation should be ———- but also —– on both sides should be … 2. The dark reaction of Photosynthesis is light independent. 7. Carbon dioxide enters the leaf through Stomata. (ii) It is the process in which green plants manufacture food from carbon-dioxide and water, in presence of sunlight. (iii) Name an alternative chemical that can be used instead of KOH. 4. (iv) Give a well balanced equation to represent the process. (iv). Light in which maximum rate of photosynthesis takes place. It is green flattened sac like structure. Photosynthesis 7. 8. Pour iodine solution on it. You can download the Class 10 Biology ICSE Textbook Solutions with Free PDF download option. Answer: ATP provides energy for dark reaction. (iii) Photosynthesis. Overview of photosynthesis. Question 9: Why is photosynthesis important in nature ? Use this information to answer questions that follow : (i) Name the process occurring in the water weed that has resulted in evolution of these bubbles. The light-independent reactions use energy from the supply of electrons to reduce carbon dioxide to produce glucose. Question 15: Why is it not possible to demonstrate respiration in a green plant kept in the sunlight ? NADPH 5. NADPH: Reduced form of nicotinamide ademne dinucleotide phosphate, a small water soluble molecule that acts as a hydrogen carrier in biochemical reactions. It occurs in following steps : Question 29: If you are planning an experiment to show the effect of light on photosynthesis : (1) Will you select white light or green light ? photosynthesis were known, namely, that plants could use light energy to make carbohydrates from CO 2 and water. 13. Which would do maximum harm to a tree? (i) It fakes place in the presence of light. The apparatus was kept in sunlight for almost the whole day. (ii) Oxygen. I. 1.Photosynthesis 2.Photosynthesis Overview 3.Discovery of Photosynthesis 4.Why is Photosynthesis important? Question 6: The figure given below is for performing an experiment on photosynthesis. (v) Photosynthesis is the source of energy food and oxygen. Question: 1. At the end of this time leaf X and leaf Y were tested for starch. Each year, photosynthesis synthesizes approx. Name the experiment to demonstrate the importance of light for photosynthesis. 6. Answer: (i) (f) (ii) (d) (iii) (e) (iv) (b) (v) (a) (vi) (c) (vii) (f) (viii) (a) (ix) (b) (x) (d) (xi) (e), ICSE Previous Year Question Papers Class 10, ICSE Solutions for Class 10 Biology – Photosynthesis, Concise Mathematics Class 10 ICSE Solutions, Concise Chemistry Class 10 ICSE Solutions, Concise Mathematics Class 9 ICSE Solutions, Violence in Video Games Essay | Essay on Violence in Video Games for Students and Children in English, Plus One Hindi Previous Year Question Paper March 2019, Schizophrenia Essay | Essay on Schizophrenia for Students and Children in English, Macbeth Ambition Essay | Essay on Macbeth Ambition for Students and Children in English, Compare and Contrast Hinduism and Buddhism Essay | Essay on Compare and Contrast Hinduism and Buddhism for Students and Children, Bill Clinton Impeachment Essay | Essay on Bill Clinton Impeachment for Students and Children in English, Marriage Essay | Essay on Marriage for Students and Children in English, Essay EBooks | EBooks Essay for Students and Children in English, Cultural Diversity Essay | Essay on Cultural Diversity for Students and Children in English, Letter from Birmingham Jail Essay | Essay on Letter from Birmingham Jail for Students and Children, Declaration of Independence Essay | Essay on Declaration of Independence for Students and Children in English. Question 20: Complete the following food chains by writing the names of appropriate organisms in the blanks: Answer: (i) Grasshopper, Hawk (ii) Grass, Insects, (iii) Rabbit, (iv) Com, Snake. Photophosphorylation 11. 4. Answer: (1) I will select white light because photosynthesis is maximum in white light while it is minimum in green light as green light is reflected by green plants. Question 5: A leaf is a food factory. 5. The leaf absorbs CO2 from the atmosphere through its stomatal openings. Photosynthesis occurs in all the cells of a plant. All the starch produced in a leaf remains stored in it for 2-3 weeks before it is used by other parts of plant. The conversion of physical energy of light into chemical energy by the chloroplast is called Photophosphorylation. One of the leaves was then plucked and an outline of the leaf marking the green and the non-green regions was drawn. It occurs in following steps : (a) The chlorophyll on exposure to light energy becomes activated by absorbing photons. (d) Decreases because water freezes. Photosynthesis process can be represented by a chemical equation. Hemera Technologies/AbleStock.com/Getty Images, The Estrella Mountain Community College Website online Photosynthesis web page, "Advanced Biology;" M. Jones and G. Jones; 1997. Question 2: Photosynthesis is considered as a process supporting all life on earth. Given below is the overall chemical equation of photosynthesis which is incomplete in certain respects. (ii) Stroma lamellae. (i) What is the aim of the experiment ? (Also known as the thylakoid membrane.) (v). Radiant energy 4. iii. Answer: (i) A large surface area to absorb water. 13. Answer: Question 3: Chloroplast and Chlorophyll. The raw materials for photosynthesis include water and CO2. Light screen experiment, Complete the following sentences with appropriate words : 1. The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen. AIIP stands for Adenosine diphosphate. Explain. It was then set up as shown in the diagram and exposed to light for about 12 hours. (d) H+ combines with CO2 in dark reaction to produce glucose. It gets water from the stem. (v) Give the chemical equation to represent the process of starch formation in plants. 7. Stomata – through which exchange of gases takes place. The overall balanced equation is 6CO2 + 6H2O -----> C6H12O6 + 6O2. Question 5: The figure below represents an experiment set up to study a physiological process in plants: (i) Name the physiological process being studied. Question 12: What is meant by photolysis of water ? (c) Increases because the gas becotne less soluble. Nicotinamide Adenine Dinucleotide Phosphate 13. photosynthesis basics study for class 10th 1. (False, The unit of light absorbed by the chlorophyll during photosynthesis is the photon or quantum.) 7. Free PDF download of Class 10 Biology Chapter 6 - Photosynthesis: Provider of Food for All Revision Notes & Short Key-notes prepared by our expert Biology teachers as per CISCE guidelines. Answer: ATP and NADPH2 are called assimilatory power. A light induced reaction which leads to splitting of water is Photolysis of water. (ii) Name the chemical used for testing the presence of starch. A ) the first form of sunlight. ICSE exams plant that Does not perform photosynthesis is the photon quantum... For almost the whole day answer: this process produces food and oxygen appeared ``! Stored in it for 2-3 days in dark to destarch the leaves with black paper remains equation of photosynthesis class 10 while of! Affected when a plant that Does not perform photosynthesis is a waste product of photosynthesis. ”.. 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