Std. 10th IQB Science And Technology - 2, English Medium .

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NTWritten as per the latest syllabus prescribed by the Maharashtra StateBureau of Textbook Production and Curriculum Research, Pune.TESTD. XA compilation of Most Important QuestionsOA great resource for quick revisionQuestions covered as per the flow of the Paper PatternCAnswers framed as per mark allocationIncludes Model Activity Sheet for self evaluationEInclusion of QR Codes for students to access videos on the‘Latest Paper Pattern’ prescribed by the Board as well as toaccess the ‘Answer Key’ for the Model Activity Sheet.SAMPL NSalient FeaturesPrinted at: India Printing Works, Mumbai Target Publications Pvt. Ltd.No part of this book may be reproduced or transmitted in any form or by any means, C.D.ROM/Audio Video Cassettes or electronic, mechanical including photocopying; recording or byany information storage and retrieval system without permission in writing from the Publisher.P.O. No. 127610TEID: 12795 JUP

PREFACECONTENTStd. X IQB Science and Technology Part - 2 is a treasure house ofthe most important questions that would help students to face the BoardExamination confidently. This book is created in accordance with the latestsyllabus and evaluation pattern as mentioned in the handbook ‘EvaluationPattern for Std. 9 and 10’ by the Maharashtra State Bureau of TextbookProduction & Curriculum Research, Pune.IQB (Important Question Bank) covers all types of questions such as‘Fill in the Blanks, Find the odd one out, Complete the Table/Chart,Questions based on figures, Classify and explain, etc. along with answers asper the marks allotted to them. The flow of the contents is mapped accordingto the paper pattern and is presented in the most lucid manner. Moreover, thequestions provided are arranged in a chapter-wise format so that students caneasily prepare for the examination. We have provided One Model ActivitySheet at the end of the book that enables students to assess their level ofpreparation for the Board examination.We have provided QR Code for students to access videos on the‘Latest Paper Pattern’ as given by the Board. The QR Code also providesstudents an access to the ‘Answer Key’ given for the Model Activity Sheet.Armed with an arsenal of choicest of the questions and relevantanswers, we are confident that this book will cater to the needs of studentseffectively assist them to achieve their goal.A book affects eternity; one can never tell where its influence stops.MPLFrom,PublisherEBest of luck to all the aspirants!Edition: FirstDisclaimerSAThis reference book is transformative work based on textual contents published by Bureau ofTextbook. We the publishers are making this reference book which constitutes as fair use of textualcontents which are transformed by adding and elaborating, with a view to simplify the same toenable the students to understand, memorize and reproduce the same in examinations.This work is purely inspired upon the course work as prescribed by the Maharashtra State Bureau ofTextbook Production and Curriculum Research, Pune. Every care has been taken in the publicationof this reference book by the Authors while creating the contents. The Authors and the Publishersshall not be responsible for any loss or damages caused to any person on account of errors oromissions which might have crept in or disagreement of any third party on the point of viewexpressed in the reference book. reserved with the Publisher for all the contents created by our Authors.No copyright is claimed in the textual contents which are presented as part of fair dealing with aview to provide best supplementary study material for the benefit of students.

Paper patternStd. X: Science and Technology – Part 2(Total : 40 Marks)Time : 2 Hours QuestionNo.3.TotalMarksTENOMPL4.C2.(A) 5 Questions of 1 mark each(Objectives)(B) 5 Questions of 1 mark each(Practicals / Projects based MCQs)7 Questions of 2 marks each(solve any 5)7 Questions of 3 marks each(solve any 5)2 Questions of 5 marks each(solve any 1)E1.Type of QuestionsNTThere will be separate question papers for Part 1 and Part 2 of40 marks each.Duration of each paper will be 2 hours.0505101505[Reference: ceneje ì jep³e HeeþîeHegmlekeÀ efveefce&leer Je DeY³eeme eÀce mebMeesOeveceb[U, HegCes efveefce&le cetu³eceeHeve DeejeKe[e]SA[P.S. Scan this QR Code to get a betterunderstanding of the New Syllabus as wellas Paper Pattern.]

Q.No.Types1. (A)1.Fill in the blanks22.Find the odd one out73.Find out the correlation104.Find out the difference between twocomponents135.Make pairs156.Right or Wrong?7.Give name8.Answer in one sentence9.Question based on figure / picture3110.Complete the flow chart3336PageNo.TENTNature of Questions18ON2224–2.1.Write notes452.Complete the flowchart/table53Clarify the difference57EMPL3.C1. (B)Choose the correct alternative andrewrite the statementSA3.4.Write properties / characteristics /advantages / effects625.Give scientific reasons686.Give examples791.Give explanation using the givenstatements822.Suggest remedies / measures833.Label the diagram and explain864.Complete the table / chart875.Explain with the help of examples936.Answer questions based on figures957.Write answers with explanation1078.Complete the paragraph114

1.2.3.4.5.6.118120124131135145TE7.Draw a figure and give explanationCorrect the given diagram and explainClassify with detailed explanationRead the given paragraph and answerthe questions based on itComplete the given table / chart andgive explanationAnswer the questions in detailMake a concept diagram and giveexplanationModel Activity SheetNT4.147SAMPLECONNote: Textual exercise questions are represented by * mark.

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Question 1 (A)Remember ThisThis question carries 5 marks. In this question, there are 5questions of 1 mark each. There is no option for this question.All questions are compulsory. It includes various question types such as ‘Fill in the blanks’,‘Find the odd one out’, ‘Find out the correlation’, ‘Find out thedifference between two components’, ‘Make pairs’, ‘Right orwrong?’, ‘Give name’, ‘Question based on figure / picture’ and‘Complete the flowchart’. In ‘Fill in the blanks’, students are expected to rewrite thecomplete statement and underline the answer. In ‘Find the odd one out’, students are expected to identify theodd one out of 4-5 components and give an appropriateexplanation in one sentence. In ‘Find out the correlation’ students are expected to determinethe correlation between two components and write an accurateexplanation in one sentence.MPLECONTENT In ‘Find out the difference between two components’, studentsare expected to identify the difference between two conceptsand write the accurate difference in one sentence. In ‘Make pairs’, students are expected to write the question aswell as the answer.SA In ‘Right or Wrong?’, students are expected to mentionwhether the sentence is right or wrong. Don’t forget to correctthe wrong sentence.In case the format of the question varies from those givenabove, students are expected to read the question carefully andattempt it accordingly, in the appropriate format.1

IQBType 1Fill in the blanksChapter 1: Heredity and Evolutionprinciple of Hugo de Vries explained the causalitybehind sudden changes in DNA.Ans: Mutation principle of Hugo de Vries explained the causalitybehind sudden changes in DNA.TENT1.George Beadle and Edward Tatum proved the fact that proteinsynthesis occurs through .Ans: George Beadle and Edward Tatum proved the fact that proteinsynthesis occurs through gene.N2.O3.stores the information about protein synthesis.Ans: DNA stores the information about protein synthesisrefers to the process of transfer of information froma molecule of DNA to mRNA.Ans: Transcription refers to the process of transfer of informationfrom a molecule of DNA to mRNA.EC4.tRNA has with complementary sequence to thecodon present on mRNA.Ans: tRNA has anticodon with complementary sequence to thecodon present on mRNA.MPL5.SA6.Evolution refers to over the long period of time.Ans: Evolution refers to gradual development over the long periodof time.7.was the first record of human-like ape found inEast Africa.Ans: Ramapithecus was the first record of human-like ape found inEast Africa.[Note: Answers for the first chapter have been provided in theappropriate format. Answers to the corresponding chapters areprovided in a concise format. Students are however, expected tofollow the appropriate format while answering questions in theexamination.]2

Q.1 (A)Chapter 2: Life Processes In LivingOrganisms Part - 1Oxidation of glucose is a type of respiration.9.Process of glycolysis occurs in of the cell.10.Tricarboxylic acid cycle occurs in of the cell.11.is the common step of aerobic and anaerobicrespiration.12.Gamete production and spore formation occurs by ochondriaMeiosisO8.10.12.CChapter 3: Life Processes In LivingOrganisms Part - 2Paramoecium reproduces by binary fission.MPL14.E*13. type of reproduction occurs without fusion of gametes.*15. Body breaks up into several fragments and each fragmentstarts to live as a new individual. This is type ofreproduction.SA*16. Pollen grains are formed by division in locules ofanthers.17.is the union of sperm and ovum to initiate formationof a zygote.*18. In humans, sperm production occurs in the organ .*19. Implantation of embryo occurs in .*20. In humans, chromosome is responsible for maleness.21.twins are exactly similar in their appearance andtheir gender is also same.3

IQBAnswersAsexualfragmentation .longitudinalmeiotictestisYTEChapter 4: EnvironmentalManagementNT13.15.17.19.21.is the basic functional unit used to studyecology.23.Currently % of the Earth has been left withhotspots.24.sanctuary in West Bengal is reserved for tigers.25.Organisms that appear to be endangered due to theirbehavioural habits are classified as species.26.prepares the ‘Red list’ that contains the names ofendangered .24.26.23.25.2.3indeterminateSAChapter 5: Towards Green Energy27.An electric generator works on the principle of .28.cell converts solar energy into electrical energydirectly.29.Energy generated from sources which are unlimited andenvironmental friendly is called .30.The machine which converts the kinetic energy of wind toelectrical energy is called .31.The power available from solar cells is current.4

Q.1 (A)Answers27.28.30.electromagnetic inductionSolar photovoltaic29.wind turbine31.green energydirectNTChapter 6: Animal Classificationis the largest phylum is animal kingdom.33.Presence of is a typical character of class mammalia.34.is considered as a connecting link between nonchordates and chordates.35.Ascaris, living in a small intestine of human belongs to phylum.36.Petromyzon having jaw-less mouth provided with suckerbelongs to class37.is a long rod-like supporting structure presentdorsally in PL32.34.36.TE32.Answers33.35.37.Mammary glandsAschelminthesNotochordSAChapter 7: Introduction to Microbiology38.An enzyme , obtained from alimentary canal of cattlewas being traditionally used earlier for making cheese.39.Ethanol, an alcohol is obtained by fermentation of carboncompounds with the help of the microbe .40.Soy sauce is produced by fermentation of a mixture of wheator rice and soybean with the help of the fungus .41.convert salts of uranium released from the atomicenergy plant into insoluble salts.5