(a) “The breathing cycle is rhythmic whereas exchange of gases is a continuous process”. List the three kinds of blood vessels of human circulatory system and write ¦ their functions in tabular form. Justify this statement. This Chapter 6 Life Processes HOTs Questions can help to get a high overall score and hence needs dedicated preparation. Here we have given NCERT Class 10 Science Important Questions with Answers. Free PDF download of Important Questions with Answers for CBSE Class 10 Science Chapter 6 – Life Processes prepared by expert Science teachers from latest edition of CBSE(NCERT) books only by CoolGyan to score more marks in CBSE board examination. Short Answer Type Questions[ll] [3 Marks] -Year 2011. Answer. 55. Mention any other purpose served by this part other than nutrition. Getting a good mark in Class 10 examinations will not only boost your confidence but will also give you the motivation to study for the next class. What will happen to a plant if its xylem is removed? 45. (b) It is necessary to separate oxygenated and deoxygenated blood in mammals and birds because they need high energy and large amount of oxygen. without being used up. 47.State the basic difference between the process of respiration and photosynthesis. that the plant consumes all its reserve food and the leaves do not contain any starch. This could be avoided by maintaining a normal blood pressure. 11.In mammals and birds why is it necessary to separate oxygenated and de-oxygenated blood ? Starch is produced in the uncovered part of the leaf because it is exposed to sunlight allowing it to photosynthesize, which turns blue-black in presence of iodine solution. The separation of oxygenated and deoxygenated blood provides high oxygen supply to the organs. The process of breakdown of glucose in a cell are as follows: Explain the process of digestion. 18. You can see some Life Processes Class 10 Notes | EduRev sample questions with examples at the bottom of this page. 59. * Short Answer Type Questions [ll] [3 Marks] -Year 2012. 46. Life Processes Worksheet-1. Students are adviced to prepare according to unitwise marks. So it is required to have separate oxygenated and de-oxygenated blood to supply the required amount of oxygen. The chapter briefly discusses the different processes that are required to maintain and sustain life such as respiration, nutrition, transportation of materials and excretion of the digested food. 21. (i) Gaseous exchange will not take place. Stomach: Stomach stores and mixes the food received from the oesophagus with gastric juices. While practising the CBSE Chapter 6 Life Processes HOTs Questions, students must keep a reliable source to seek precise solutions so that they may know the right way to approach the answers to Science HOTS Question HOTs Questions. (i) Blood (ii) Lymph Villi are richly supplied with blood vessel which help to absorb digested food in to the blood stream. English; Math; Science; Bank PO-SSC-CGL. The primary objective here was to improve the evaluating and analytical skills of a student. Put a drop of glycerin over the peel and place a clean covers lip gently over it with the help of a needle. The process of digestion of food in mouth, stomach and small intestine in human State three reasons for your answer. Answer. (i) Diaphragm (ii) Larynx (a) Draw a diagram depicting Human Alimentary Canal and label on it: Gall bladder, Liver and Pancreas. They store the CO2 in their cells until the sun comes out and they can carry on with photosynthesis during the day time. (a) List the three events that occur during the process of photosynthesis. (ii) Desert plants open up their stomata during night and take in CO2. Urethra is the tube that connects the urinary bladder to the outside of the body for excretion. In unicellular organisms the entire body of the organism is in contact with the environment hence exchange of materials can take place but, in multicellular organisms the entire body of the organism is not in contact with the environment and hence simple diffusion is not helpful. Solving the Class 10 Science Ch 9 Important Questions will help students lay a strong foundation of these concepts. Stomata are mainly engaged in the exchange of gases (entry of CO2 and release of O2 ) associated with photosynthesis. Answer. (b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms? Answer. Long Answer Type Question [5 Marks] -Year 2015. (iii) A thin surface across which gases diffuse. Answer. (b), Very Short Answer Type Question [1 Mark] -Year 2013. Nitrogenous wastes are transported to the kidneys. (i) Carbon Dioxide: Plants get CO2 from atmosphere through stomata. CBSE Chapter 6 Life Processes HOTs Questions helps to improve conceptual understanding and develops thinking skills. Class 10 CBSE Board Questions ( September Term-01) Q. (b) Breakdown of large gloubule fats into smaller fats droplets is known as emulsification. Name any one enzyme of our digestive system and write its function. Long Answer Type Question [5 Marks] -Year 2010. Mention the raw materials required for photosynthesis. (b) Describe an experiment to show that “sunlight is essential for photosynthesis.” (b) Raw materials for photosynthesis: Carbon dioxide, water, chlorophyll and sunlight are the essential raw materials for photosynthesis. Breathing occurs involuntarily but its rate is controlled by the respiratory center of the brain. Here we have covered Important Questions on Life Processes for Class 10 Science subject.. Science Important Questions Class 10 are given below.. (iii) Urinary Bladder All green plants require, along with the food prepared by photosynthesis, other inorganic nutrients. (b) The functions of blood and lymph are as follows: Toggle navigation 0 . 43. The chlorophyll pigments are photoreceptor molecules which play a key role in the photosynthetic process. (ii) Then, cover a portion of a leaf of this plant on both sides with two uniform pieces of black paper, fixed in position with two paper clips. Here you will find Chapter Wise NCERT MCQ Questions for Class 10 Science with Answers PDF Free Download based on the important concepts and topics given in the textbook. 6.State the role of the following in human digestive system : Answer. 8. All sample papers are suggestive and for practice only. park.. Long Answer Type Questions [5 Marks] -Year 2011. In this step, glucose is broken down into pyruvate. In addition, our website also has important questions for Class 10 subject wise solutions which will help students to refer to the answers once they are done answering in order to self-evaluate their performance and correct any errors. 37. 2. 40. 31. Energy released during aerobic respiration is much greater than that released during an anaerobic respiration. NCERT Solutions Offline Apps for class 10 Science in Hindi and English Medium based on latest CBSE Syllabus 2020-21 are available to free download. This gas is utilised by the autotrophic plants which enters the leaf through the stomata present on its surface during the process of photosynthesis. The chemical equation for photosynthesis is as follows: 41. (c) The organ which performs the following functions in humans are as follows: (ii) Plant loses water through stomata which helps in movement of minerals from soil to leaves. (a) Capillaries 28.What is saliva? (b) Liver: It synthesize and store bile juice secreted by gall bladder which breaks down fats into fat globules. Find videos, notes and ncert solutions@learnfatafat.com 10.Write correct sequence of four steps of method for the preparation of temporary mount of a stained leaf peel. These are absorbed from the soil by … It is because, during vigorous exercise the demand for oxygen increases. How are the alveoli designed to maximise the exchange of gases? Plant closes the stomata when it does not need CO2 for photosynthesis. MCQ Questions for Class 10 Science Pdf: Science subjects which include Physics, Chemistry and Biology are very important for students who want to score good marks in their CBSE board examination.Science subjects are crucial for students who want to make a career in engineering, medical or … The different processes involved in the nutrition of amoeba are: 30. CBSE Chapter 6 Life Processes HOTs Questions for Class 10 PDF In simple words, CBSE Class 10 HOTs Questions are the skills that involve learning that goes beyond mere comprehension. (b) State any two differences between autotrophic nutrition and heterotrophic nutrition. CBSE Class 10th Science Important Questions – Free PDF Download. You can do this by folding the leaf over and gently pulling the peel apart using forceps. 3.In single celled organisms diffusion is sufficient to meet all their requirements of food, exchange of gases or removal of wastes but it is not in case of multicellular organisms. Short Answer Type Questions[l] [2 Marks] -Year 2011. Answer. Draw a diagram of human respiratory system and label on it : (c) Which protein digesting enzyme is present in pancreatic juice ? (ii) Absorption of water. Answer. So, if xylem is removed from the plant, the water and mineral supply to the plant will stop and therefore, the plant will die. Answer.The final product produced after digestion of carbohydrates is glucose and of proteins is amino acids. (a) Name the site of exchange of material between the blood and surrounding cells. (c) How opening and closing of stomata takes place? Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Answer. (i) Absorption of light energy by the green pigment chlorophyll. (a) Rate of photosynthesis is higher in plants getting average light of 10-12 hrs a day. Answer. Get here the Class 10 Science MCQs for all chapters to revise the fundamental concepts. Answer. Their functions are tabulated below: Lonq Answer Type Questions [5 Marks] -Year 2012. a) root hair b) Lenticels c) stem hair d) epidermal cells. Translocation is the movement of soluble materials, products of photosynthesis from leaves to other tissues throughout the plant. (iv) Light affects photosynthesis by its intensity, quality and duration. The digested and absorbed nutrients are transported by blood to the tissues. Veins carry deoxygenated blood, towards the heart except pulmonary veins. Life processes Worksheets . Prepared by teachers of the best CBSE schools in India.Assignments for First Term Class –X Short Answer Question [I] [2 Marks] -Year 2012. (ii) Hydrochloric acid – Hydro chloric acid helps to kill the germs which might have entered in to the system through food. (ii) Hormones are synthesised at the tips of roots and stems of a plant. Put a few drops of safranin stain in a watch glass. 24. Answer. (a) CBSE Board introduced questions based on - Higher Order Thinking Skills (HOTs). Answer. Digestion of fat takes place in the small intestine of our body. Answer.The Kidneys filter the blood and concentrate the filtrate to make urine. Very Short Answer Type Questions [1 Mark] -Year 2010. Answer. The rate of breathing during vigorous exercise increases by about 20 to 25 times per minute. (c) Trypsin is the enzyme secreted by the pancreas which aids in digestion of proteins. 36. 10th Science Life Processes have many topics. More than millions of alveoli are present in the lungs. Answer. Ureters transport the urine to the urinary bladder. The plant will begin to die because Copyright © 2019 All Rights Reserved, selfstudys.com, CBSE Chapter 6 Life Processes HOTs Questions for Class 10 PDF, Lakhmir singh and manjit kaur The format of the answers is in accordance with the latest recommended format given by the CBSE. CBSE Class 10 Biology Activity Chapter: Life Processes Activity 1:- To show that chlorophyll is essential for photosynthesis. (b) How is urine produced and eliminated ? Answer.The deficiency of hemoglobin in our body is called anemia. Why do herbivores have longer, small intestine than carnivores ? 17. The availability of large surface area maximises the exchange of gases. 2. Important Questions for Class 10 Science Chapter 6 Life Processes- Download Free PDF MCQs. Hence, gives blue- black colour when tested with iodine. (iii) Reduction of carbon dioxide into carbohydrate. After a few hours, remove the leaf and decolorize it with alcohol and test the presence of food (starch) with iodine solution. Where in plants are the following synthesised? In anemia, the blood is unable to carry the sufficient amount of oxygen required by the body. Where does digestion of fat take place in our body? It feeds on microscopic plants and animals present in water. Remove a part of the peel from the lower surface of the leaf. For example: Amylase catalyses the breakdown of starch into sugars in the mouth and small intestine. Small Intestine: Small intestine is the site of complete digestion of carbohydrates, proteins and fats. Thus a large amount of air is brought in contact with the air in the lungs. (ii)In absence of Oz: In the absence of 02 in yeast, pyruvate is converted into ethanol and C02 and the process is called fermentation. (b) List four conditions required for efficient gas exchange in an organism. (a) The process of taking in of oxygen from air in to the lungs and expulsion of carbon dioxide out of the lungs is called breathing. 50.Name the component of blood that helps in the formation of blood clot in the event of a cut. Carnivorous animals cannot digest cellulose due to the absence of enzyme CELLULASE, hence they have a shorter intestine. Answer. Saliva is a watery fluid secreted by the salivary glands in the mouth. (i) Gaseous exchanges between plant and the atmosphere. In autotrophic nutrition, organisms obtain their food from inorganic substances. These rings support the trachea and do not allow the trachea to collapse when there is less air in it. What is‘translocation’in plants? Explain the reason for this difference. Class 10 Revision Notes Life Processes Download File ... 10th Nutrition in plants and animals[Must Read] File Size: 2161 kb: File Type: pdf: Download File. Short Answer Type Questions[ll] [3 Marks] -Year 2013. Answer. Answer. In the experiment “Light is essential for photosynthesis”, why does the uncovered part of the leaf turn blue-black after putting iodine solution? 19. In this article, we are providing MCQs on Life Processes of CBSE Class 10 Science. Multicellular organisms require greater amount of oxygen to sustain life processes which cannot be fulfilled by the process of diffusion. As large amount of water is lost through these stomata, the plant closes these pores when it does not require carbon dioxide for photosynthesis. Check the below NCERT MCQ Questions for Class 10 Science Chapter 6 Life Processes with Answers Pdf free download.