{"id":41025,"date":"2022-01-31T18:50:42","date_gmt":"2022-01-31T13:20:42","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=41025"},"modified":"2022-01-31T18:50:42","modified_gmt":"2022-01-31T13:20:42","slug":"extra-questions-for-class-10-science-chapter-6-life-processes","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-10\/science\/extra-questions-for-class-10-science-chapter-6-life-processes\/","title":{"rendered":"Extra Questions for Class 10 Science Chapter 6 Life Processes"},"content":{"rendered":"

Extra Questions for Class 10 Science Chapter 6 Life Processes<\/span><\/strong><\/h2>\n

According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks.<\/p>\n

Topics and Subtopics in NCERT Solutions for Class 10 Science Chapter 6 Life Processes<\/strong>:<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
Section Name<\/strong><\/td>\nTopic Name<\/strong><\/td>\n<\/tr>\n
6<\/td>\nLife Processes<\/td>\n<\/tr>\n
6.1<\/td>\nWhat Are Life Processes?<\/td>\n<\/tr>\n
6.2<\/td>\nNutrition<\/td>\n<\/tr>\n
6.3<\/td>\nRespiration<\/td>\n<\/tr>\n
6.4<\/td>\nTransport Ansportation<\/td>\n<\/tr>\n
6.5<\/td>\nExcretion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Question-1<\/span><\/strong>
\nDefine nutrition? What are the different modes of nutrition?<\/strong>
\nSolution:<\/strong>
\nNutrition is the process of intake, as well as utilization of nutrients by an organism. The different modes of nutrition are saprophytic nutrition, parasitic nutrition and holozoic nutrition.
\nQuestion-2<\/span><\/strong>
\nWhat is the mode of nutrition in fungi?<\/strong>
\nSolution:<\/strong>
\nSaprophytic nutrition is the mode of nutrition that is seen in fungi.<\/p>\n

 <\/p>\n

Question-3<\/span><\/strong>
\nName the pigment, which can absorb solar energy.<\/strong>
\nSolution:<\/strong>
\nChlorophyll is the pigment, which can absorb solar energy.
\nQuestion-4<\/span><\/strong>
\nName the two stages in photosynthesis.<\/strong>
\nSolution:<\/strong>
\nThe two stages in photosynthesis are
\n(i) Light reaction and
\n(ii) Dark reaction.
\nQuestion-5<\/span><\/strong>
\nName the factors, which affect photosynthesis.<\/strong>
\nSolution:<\/strong>
\nThe factors which affect photosynthesis, are light, water, temperature, humidity, age of the leaf and carbon dioxide.
\nQuestion-6<\/span><\/strong>
\nDefine a herbivore and a carnivore.<\/strong>
\nSolution:<\/strong>
\nThe animals that feed only on plants are called herbivores.
\nThe animals that feed only on flesh are called carnivores.
\nQuestion-7<\/span><\/strong>
\nHow does amoeba engulf its food?<\/strong>
\nSolution:<\/strong>
\nAmoeba engulfs its food by extending pseudopodia. This process is known as Phagocytes.
\nQuestion-8<\/span><\/strong>
\nName the parts of the digestive system of a grasshopper.<\/strong>
\nSolution:<\/strong>
\nThe parts of digestive system of a grasshopper are pharynx, salivary glands, hepatic caeca, malpighian tubules, ileum, colon, rectum and anus.
\nQuestion-9<\/span><\/strong>
\nWhat are the functions of the liver and the pancreas?<\/strong>
\nSolution:<\/strong>
\nThe liver secretes bile, which contains bile pigments and bile salts. The bile secreted by the liver cells is normally stored in the gall bladder, until needed in the duodenum. Pancreas lie parallel to and beneath the stomach. It is a large gland, which secretes digestive enzymes as well as the hormones, insulin and glucagons. Both bile and pancreatic juice enter duodenum through a common duct. Bile emulsifies fat present in the food. Pancreatic juice contains trypsin, for digesting proteins and pancreatic amylase for the breakdown of starch.
\nQuestion-10<\/span><\/strong>
\nDefine breathing.<\/strong>
\nSolution:<\/strong><\/p>\n

Breathing is a process by which organisms inhale oxygen. The inhaled oxygen gets diffused into the blood and the carbon dioxide from the blood diffuses back into the alveoli from where it is exhaled.<\/p>\n

Question-11<\/span><\/strong>
\nHow is respiration different from breathing?<\/strong>
\nSolution:<\/strong>
\nRespiration is a complex process, which includes breathing, the mechanism of exchange of gases,oxygen and carbon dioxide and oxidation of digested food occurring in the cells in order to release energy. The main outcome of respiration is the release of energy through oxidation of simple food molecules such as glucose.
\nQuestion-12<\/span><\/strong>
\nIn which kind of respiration is more energy released?<\/strong>
\nSolution:<\/strong>
\nIn aerobic respiration more energy is released.
\nQuestion-13<\/span><\/strong>
\nWhich part of the roots is involved in exchange of respiratory gases?<\/strong>
\nSolution:<\/strong>
\nRoot hair is the part of the root which is involved in exchange of respiratory gases.
\nQuestion-14<\/span><\/strong>
\nWhat are (i) stomata and (ii) lenticels?<\/strong>
\nSolution:<\/strong>
\n(i) Stomata are tiny apertures found on the surface of the leaf, which regulate the exchange of respiratory gases and transpiration.
\n(ii) Lenticels are the raised pores in the woody plants that allow the exchange of gases between the atmosphere and the internal tissues.
\nQuestion-15<\/span><\/strong>
\nGive two points of differences between respiration in plants and respiration in animals.<\/strong>
\nSolution:<\/strong>
\nThe respiration in plants differ from respiration in animals in two respects, they are
\n(i) There is minimal transport of gases from one part of the plant to another, unlike the animals.
\n(ii) Plant respiration occurs at a much slower rate than animal respiration.
\nQuestion-16<\/span><\/strong>
\nName the respiratory organs of
\n(i) fish
\n(ii) mosquito
\n(iii) earthworm
\n(iv) dog<\/strong>
\nSolution:<\/strong>
\nThe respiratory organs of
\n(i) fish \u2013 gills
\n(ii) mosquito \u2013 tracheoles
\n(iii) earthworm \u2013 skin
\n(iv) dog \u2013 lungs.
\nQuestion-17<\/span><\/strong>
\nSolution:<\/strong>
\nThe oxygen rich air enters through openings called spiracles situated on the sides of the body of an insect. Spiracles open into tracheal system. Trachea branch into tracheoles, which reach the cells. Thus, every cell gets oxygen directly. Carbon dioxide released by cells moves out through the spiracles.
\nQuestion-18<\/span><\/strong>
\nFrom where do the following take in oxygen?
\n(i) prawn (ii) rat.<\/strong>
\nSolution:<\/strong>
\n(i) Prawns take in oxygen that is dissolved in water.
\n(ii) Rat takes in oxygen from the atmosphere.
\nQuestion-19<\/span><\/strong>
\nState the function of epiglottis.<\/strong>
\nSolution:<\/strong>
\nEpiglottis prevents the food from entering into the trachea.
\nQuestion-20<\/span><\/strong>
\nSolution:<\/strong>
\nThe walls of trachea do not collapse when there is less air in it, because, they are supported by rings of cartilage.
\nQuestion-21<\/span><\/strong>
\nSolution:<\/strong>
\nNutrition is the sum of all those activities which are concerned with ingestion, digestion, absorption of digested food, egestion, oxidation of simple food to produce energy for growth, development and maintenance of living organism.
\nQuestion-22<\/span><\/strong>
\nSolution:<\/strong>
\nEnergy is required by an organism even during sleep because various biological processes keep on occurring in its body.
\nQuestion-23<\/span><\/strong>
\nDefine photolysis.<\/strong>
\nSolution:<\/strong>
\nThe phenomenon of breaking down of water in the illuminated chloroplast is known as photolysis.
\nQuestion-24<\/span><\/strong>
\nWhat are the living organisms that cannot make their own food called?<\/strong>
\nSolution:<\/strong>
\nThe living organisms that cannot make their own food called heterotrophs.
\nQuestion-25<\/span><\/strong>
\nWhat are chemotrophs?<\/strong>
\nSolution:<\/strong>
\nChemotrophs are organisms, which do not require light. They manufacture their food from inorganic substances in the presence of energy derived from the oxidation of simple inorganic compounds of iron, sulphur, etc.
\ne.g. <\/strong>bacterium Nitrosomonas.
\nWhat is compensation point?<\/strong>
\nSolution:<\/strong><\/p>\n

The compensation point is the amount of light on the light curve where the rate of photosynthesis exactly matches the rate of respiration.
\nAt this point, the uptake of CO2<\/sub> through photosynthetic pathways is exactly matched to the respiratory release of carbon dioxide, and the uptake of O2<\/sub> by respiration is exactly matched to the photosynthetic release of oxygen. This point is reached during early mornings and late evenings.<\/p>\n

Other than chlorophyll, which other pigment is necessary for photosynthesis?<\/strong>
\nSolution:<\/strong>
\nCarotenoids are the pigments, which are necessary for photosynthesis other than chlorophyll. Carotenoids are yellow, orange, red or brown pigments, which absorb sunlight and pass this energy on to chlorophyll for the purpose of photosynthesis. Thus, the carotenoids themselves do not carry out photosynthesis but help in photosynthesis.
\nQuestion-28<\/span><\/strong>
\nWhere does digestion begin?<\/strong>
\nSolution:<\/strong>
\nDigestion begins from the mouth.
\nQuestion-29<\/span><\/strong>
\nWhat is the name given to the process of using the absorbed food for producing energy?<\/strong>
\nSolution:<\/strong>
\nThe name given to the process of using the absorbed food for producing energy is assimilation.
\nQuestion-30<\/span><\/strong>
\nWhat happens to visible light of the Sun when it falls on chlorophyll?<\/strong>
\nSolution:<\/strong>
\nVisible light of the Sun consists of seven colours, namely, violet, indigo, blue, green, yellow, orange and red. Out of these lights of different wave lengths, chlorophyll absorbs mainly blue, violet, red and orange lights but does not absorb the green light. It is due to the reflection of green light by the chlorophyll that the plant looks green in colour.<\/p>\n","protected":false},"excerpt":{"rendered":"

Extra Questions for Class 10 Science Chapter 6 Life Processes According to new CBSE Exam Pattern, MCQ Questions for Class […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Get Extra Questions for Class 10 Science Chapter 6 Life Processes on Infinity Learn.","custom_permalink":"study-material\/cbse-notes\/class-10\/science\/extra-questions-for-class-10-science-chapter-6-life-processes\/"},"categories":[92,21],"tags":[],"table_tags":[],"acf":[],"yoast_head":"\nExtra Questions for Class 10 Science Chapter 6 Life Processes - Infinity Learn by Sri Chaitanya<\/title>\n<meta name=\"description\" content=\"Get Extra Questions for Class 10 Science Chapter 6 Life Processes on Infinity Learn.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-10\/science\/extra-questions-for-class-10-science-chapter-6-life-processes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Extra Questions for Class 10 Science Chapter 6 Life Processes - 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