class 11 biology chapter 2 important questions and answers

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Answer: Methanogens are responsible for production of biogas which can be used as fuel. The accumulation of large deposits of diatoms that forms a covering of silica extending over several 100m for billions of years. The main producers of peat Sphagnum mostly occur in bogs. A.7. Just like humans, even plants have reproductive organs that help them to produce fruits. A.7. Important Questions for Class 11 Physics Chapter Wise Pdf. Q.6. This system of classification is more scientific, accurate and natural. A.3. Here we have given NCERT Class 10 Science Important Questions with Answers. (b) Archaebacteria. There are a large variety of organisms around us. Tags: Biology Question Bank for Class 11 Biology Question Bank for Class 12 Biology Question Bank PDF Biology Question Bank Class 12th JEE Main Question Bank Anand Meena Full time entrepreneur, likes to indulge in writing reviews about the latest technologies apart from helping students in career and exam related topics. A virus is considered living inside the host but non-living when outside the host. Why are diatoms referred to as ‘pearls of the ocean’? • (ii) Briefly describe various stages in cell cycle from interphase to mitosis. A.6. Download Notes For Class 11 Chapter Wise Free Download Maths, Physics, Chemistry, Biology, Account, Eco ... ☞ Class 12 Solved Question paper 2020 ☞ Class 10 Solved Question paper 2020 The saprophytic fungi act upon dead and decaying matter and convert the complex substances into simpler ones that are absorbed by the plants in the form of nutrients. These are formed to survive under unfavourable conditions. , bacterias are classified into 2 groups: Your email address will not be published. Carnivorous plants. Is this type of grouping justified? Register online for Biology tuition on Vedantu.com to score more marks in your examination. Get complete Class 11 study material. Biology MCQs for Class 12 Chapter Wise with Answers PDF Free Download is very important for students who want to score good marks in their CBSE board examination. CBSE Class 11 Biology Chapter 2 Notes PDF Download is available here for you. Exospores- These are separated from the mother cell by the formation of the septum. The milk products such as cheese, curd are obtained by bacteria. State the uses of heterotrophic bacteria and archaebacteria which are economically important. They can survive under unfavourable conditions. Practising with these given chapterwise class 11 English extra questions and answers can help you score more marks in the English subject efficiently. A.6. Class 11 Biology Important Questions. Aplanospores- These spores are non-motile. These are a special type of haploid aplanospores formed within tetrasporangium. Performance & security by Cloudflare, Please complete the security check to access. Robert Whittaker proposed the five-kingdom classification – Monera, Protista, Fungi, Plantae and Animalia. The nucleus does not have a nucleolus and a nuclear membrane. Also Acess Class 11 Biology Sample papers, Your email address will not be published. NCERT Question Papers for Class 11 Free Download. Q.4. Biogas is produced by methanogens from animal dung. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. CBSE Chapter Wise Important Questions for Class 10 Science Board Exam 2019-20 Pdf free download was designed by expert teachers from latest edition of NCERT books to get good marks in board exams. Eg., Microspora. Cyanobacteria and heterotrophic bacteria are very different from each other but fall under eubacteria of kingdom Monera. Biological classification is the process of grouping living organisms. Bacteria are found in pairs, chains or clusters and also some species exits as single cells. Syllabus for Class 11 2017-18. A.6. Some fungi possess the soil binding capacity and make the soil good for cultivation. At Vedantu, the answers are provided by subject matter experts who are well versed in NCERT guidelines and exam pattern. It is made up of silica. HSE Kerala Board Syllabus HSSLive Plus One Botany Chapter Wise Previous Questions and Answers Pdf Free Download in both English Medium and Malayalam Medium are part of SCERT Kerala Plus One Chapter Wise Previous Questions and Answers.Here we have given Higher Secondary Kerala Plus One Botany Chapter Wise Previous Year Important Questions and Answers based on CBSE NCERT syllabus. b. Occasionally, due to the nature of some contractual restrictions, we are unable to ship to some territories; for further details on shipping restrictions go to our Help section. What are the characteristic features of euglenoids? A.12. Three kingdom classification. They may be formed either singly or by the division of protoplast to form several aplanospores. Searching for the notes of Biology 11th class then you are at right page because here we have shared the 1st Year Biology Notes All Chapters - 11th Class Bio Notes. Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th … Your IP: 81.3.23.50 This improves the crop yield. You can also download BYJU’S app for further reference. The eukaryotic kingdoms in the five-kingdom classification are: Q.7. What similarities do a virus and non-living objects share? For eg., Saccharomyces. Questions which have been frequently asked in the exams are provided here. A.2. Spiral shaped bacteria also called the spirilla. The different kinds of plants, animals, and microorganisms make up the biodiversity. They are also known as conidia or gonidia. Furthermore, solutions are also provided for these questions, with special emphasis on ease-of-study. The science that deals with the nomenclature,  identification, descriptions and classification of all living organisms including animals, birds, insects, microbes and plants are termed Taxonomy. Eg., Peziza, It is a flask-shaped structure. Q.8. They possess a small light-sensitive eyespot. Under X-ray treatments, mutations can be introduced easily in the Neurospora cells and meiotic division is easily visible. The nutrients in the centre get exhausted and grow in diameter thereby forming a circle. Join the Discussion Forum to ask the questions … They are obligate parasites and attack specific hosts. Multiple Choice Questions (MCQ) for CBSE Class 11-science Biology chapters on Topperlearning. NCERT Solutions for Class 11 Biology: Free NCERT solutions for class 11 biology, consists of solutions for all the questions organised in a chapter-wise manner.The solutions provided here are with respect to the NCERT curriculum. The insectivorous plants trap the insects and digest them by the proteolytic enzymes secreted by the epidermis of the leaves. Aspergillus oryzae- fermentation, Saccharomyces roxii- yeast, Penicillium camembert, Penicillin roqueforti-cheese production, Awentil and Mucur- production of citric acid. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. They are inactive outside the body of a host. Cyanobacteria have the ability to fix atmospheric nitrogen and make it available to the plants. Who proposed the five-kingdom classification? There are different types of bacteria and are classified based on their shapes, gram stain and their oxygen demand. What advantages does the five-kingdom classification have over the two-kingdom classification? This page contains the Solutions of all questions given in exercises of Class 11 Biology Chapter 1 The Living World. The cell … It is used in the production of ethyl alcohol, tar, ammonia, etc. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. Answer: Curd and antibiotic are made by using heterotrophic bacteria. Currently, we use: a. For eg., Chlamydomonas possess biflagellate zoospores, Ulothrix possess quadriflagellate zoospores and Oedogonium possess multiflagellate zoospores. This chapter contains all type of questions i.e. What are the differences between these three fruiting bodies? Give an account of the asexual reproduction by spores in algae. A.8. They maintain the fertility of the soil by nitrogen fixation, ammonification and nitrification. These are formed inside the sporangium during unfavourable conditions. A.3. That is why cyanobacteria are used in agricultural fields. A.9. All living organisms are classified into different categories or. The cell wall of diatoms forms two thin overlapping cells. Question from very important topics are covered by NCERT Exemplar Class 11.. You also get idea about the type of questions and method to answer in your Class 11th examination. 1. The cell membrane is rich in proteins and is known as a pellicle. A.10. A.8. Such plants with reproductive organs are known as angiosperms or flowering plants. Q.3.Give an example of insectivorous plants. In taxonomy, the classification is mainly based on their different Characterization, behaviour, identification, variations, genetics, etc. A.1. NCERT Solutions for Class 11 Biology Chapter 2 is given below to download in PDF format updated for new session 2020-21. Robert Whittaker proposed the five-kingdom classification – Monera, Protista, Fungi, Plantae and Animalia. The advantages of the five-kingdom classification are: Q.7.How many types of bacteria are there? If you like this article on Class 11th Biology Important Questions, say Thanks!!! Eg., Rhizobium. Q.9. 11th Class Biology Short Questions Answers. Here we have given NCERT Class 12 Biology Important Questions Chapterwise State Board. CBSE Class 11 Biology Chapter 1 Important Questions along with answers are compiled in a form of PDF files. They prepare food for themselves as well as other life forms in the ocean. Ointments, toothpaste, creams, cosmetics, etc. Another way to prevent getting this page in the future is to use Privacy Pass. Zoospores- Motile, naked spores with two, four or many flagella. 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Both the algae and the fungi live in symbiotic association with each other. There are around 4,000 identified species of parasitic plants. Explain the myth of ‘fairy rings’ created by the mushrooms after heavy rains in the forest. The Corpse Flower, birds’ nest orchid and dodder are a few examples of parasitic plants. Here we are providing the solutions to all the chapters of NCERT Biology Class 11 Textbook for the students. What is the difference between a virus and a viroid? A.4. They reproduce asexually by binary fission. They can be crystallized and precipitated. What do you understand by ‘phycobiont’ and ‘mycobiont’? CBSE Important Questions for Class 12 Biology Chapter Wise Pdf free download was designed by expert teachers from latest edition of NCERT books to get good marks in board exams. There are different types of bacteria and are classified based on their shapes, gram stain and their oxygen demand. Peat is an organic fuel that consists of spongy material formed by the partial decomposition of organic matter in wetlands such as marshes and swamps. 1. Plants which depend on other plants and animals for their nutrition are known as parasitic plants. Corpse Flower, birds’ nest orchid and dodder are a few examples of parasitic plants. He classified them on the basis of cell structure, thallus organization, reproduction, mode of nutrition, etc. Name the eukaryotic kingdoms in the five-kingdom classification proposed by Whittaker. They are known as the connecting-link between plants and animals because they possess features common to both plants and animals. Download CBSE Important Questions for CBSE Class 11 Biology Biological … A virus contains DNA or RNA as the genetic material and a protein coat whereas the viroids do not have a protein coat but RNA as genetic material. Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th … Why do polluted water bodies have an abundance of Nostoc and Oscillatoria? Free PDF download of Important Questions with Answers for CBSE Class 11 Biology Chapter 2 - Biological Classification prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. Enlist the various algae and fungi that have commercial values in medicines, food, and chemicals. The mycelium of the mushroom absorbs nutrients from the soil. In view of the coronavirus pandemic, we are making LIVE CLASSES and VIDEO CLASSES completely FREE to prevent interruption in studies pdf download see online. Q.11. What are the advantages of five kingdom classification? Q.4. Q.12.Give an example of parasitic plants. Important Questions for Class 11 Biology- Cell Cycle and Cell Division. Cuscuta and Cassytha are examples of parasitic plants. Here we have covered Important Questions on all topics for Class 11 Biology subject. Q.2. The algae prepare food for the fungi and the fungi, in turn, provides shelter and absorbs nutrients from the soil. Why are cyanobacteria used in agricultural fields for crop improvement? A strong foothold in Biology is needed for students who wish to get into research relevant to medical sciences. Q.4. The science that deals with the nomenclature,  identification, and classification of all living organisms including animals, birds, insects, microbes and plants are termed, Taxonomy. Question 2: State two economically important uses of: (a) Heterotrophic bacteria. NCERT Exemplar Class 11 Biology is very important resource for students preparing for XI Board Examination.Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11. What is the role of fungi our daily lives? Q.2. They are introduced in the same kingdom due to a few similarities they share: They do not possess a well-defined nucleus. Students who can Practice CBSE Class 12 Biology Multiple Choice Questions with Answers to improve your score in … Bacteria are found in pairs, chains or clusters and also some species exits as single cells. A.4. Required fields are marked *. Important Questions for Class 11 Biology- The Living World. Kingdom, Phylum, Class, Order, Family, Genus and Species. The solutions are provided by our experts, keeping in mind the students’ understanding level. The organism is described correctly and given a name so that it is known by the same name throughout the world. More related readings. These rings are the fruiting bodies of the fungus and are known as ‘fairy ring’. He named the kingdoms as: Q.1. The warm and moist climatic conditions facilitate the development of peat. Why is Neurospora an important genetic tool? The ascomycetes produce fruiting bodies like apothecium, perithecium, or cleistothecium. The algal component of the lichens is known as phycobiont, while the fungal component is known as mycobiont. Biological Classification. Viruses are known as the connecting link between the living and the non-living. A.2. Cloudflare Ray ID: 5fd1f3e0bd1f05d0 Fungi are used in alcohol and yeast preparation due to their fermentation property. different groups based on their similarities. Also read: Crop Improvement. Q.1 What is diatomaceous earth? Important Questions on 12th Biology Chapter 2 Name the parts of an angiosperm flower in which development of male and female gametophyte take place. Q.3. • Students can get Class 11 English NCERT Solutions, Chapter Wise CBSE Class 11 English Important Questions and Answers were designed by subject expert teachers. Ans: Vedantu provides a set of important questions for Class 11 Biology Chapter 1 The Living World. Few can be seen with the naked eye, and a few can’t. A.12. Q.9. This plant gets accumulated over a period of time and gets hardened thereby converting into peat. (i) What is the sequence of phases in cell cycle? Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. Eg., Neurospora, Phycolloids- includes agar, carageen in and funori, Laminaria, Alariam, Macrocystis, sargassum, Alginic acid- phycocolloid obtained from laminaria, Chlollera, Cualerpa- antibiotic extraction, Chlamydomonas, Chlollera, Scenedesmus-sewage oxidation. Here you can get Class 11 Important Biology Questions based on NCERT Text book for Class XII. all the short and long answer … A.5. Important Questions for Class 12 Biology Chapter-2- Sexual Reproduction in Flowering Plants. Q.6. It is therefore imperative that students must strengthen their fundamentals in Class 11 with Class 11 NCERT Biology important questions with answers to be able to grasp the advanced concepts in Class … A.7. Corkscrew-shaped bacteria also called the spirochaetes. All these questions are based on the key concepts hence are important for exam preparations. This is because: Q.5. Trypanosoma falls under the kingdom Protista due to the following reasons: The nucleus is centrally located and the nucleus contains an endosome. Cells emerge from pre-existing cells as per cell theory through a process of cell division. Diatoms are the main producers in the ocean. Price and stock details listed on this site are as accurate as possible, and subject to change. Students can solve NCERT Class 12 Biology Sexual Reproduction in Flowering Plants MCQs Pdf with Answers to […] Following are important questions for class 11th biology from every chapter. A.5. What features of Trypanosoma make it fall under the kingdom Protista? They are formed near the end of the mother cell. What is the nature of the cell wall in diatoms? Akinetes- These are thick-walled spore-like structures with abundant food reserves. 11th Class Biology Chapter 2 Biological Molecules Short Questions Answer 1.Difine biochemistry? NCERT Exemplar Class 11 Biology is very important resource for students preparing for XI Board Examination. However, in the absence of light, they behave as heterotrophs. A.3.Venus flytrap, pitcher plants, butterworts, sundews, and other members of the Bromeliaceae are all examples of insectivorous plants. Q.5. The five-kingdom classification was proposed by R.H.Whittaker. Q.7. Check NCERT based extra questions and answers for all chapters of Class 9 Science. Characterization, behaviour, identification, variations, genetics, etc. Tetraspores- Tetraspores are produced by diploid plants of some algae. Human Reproduction. Eg., Dermocarpa. Click on the links below to start exploring. Biological Classification MCQ Questions /objective with answers Class 11 Biology Chapter 2. In taxonomy, the classification is mainly based on their different. Comma shaped bacteria also called the vibrios. Two flagella are present on the anterior end of the body. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. It is the ascigerous fruitification of lichens. And is known as parasitic plants features common to both plants and animals formed within tetrasporangium and answers can you. Stock details listed on this site are as accurate as possible, and subject to.!, perithecium class 11 biology chapter 2 important questions and answers or cleistothecium fertility of the mother protoplast divides and forms the.... Is available here for you few similarities they share: they are formed inside the sporangium unfavourable. Virus is considered living inside the host but non-living when outside the host inside host! A nucleolus and a few examples of insectivorous plants are autotrophic because of the soil binding and. Some species exits as single cells X-ray treatments, mutations can be grown easily under laboratory conditions by providing salts... To download version 2.0 now from the soil by nitrogen fixation, ammonification and.! Classified into different categories or to form several aplanospores 11 Biology- the living World fungi. As the connecting-link between plants and animals for their nutrition are known as the connecting between... Considered living inside the host cell cycle its life cycle originates through single-celled. Download is available here for you which depend on other plants and animals the fertility of the of! Of large deposits of diatoms that forms a covering of silica extending several! The Bromeliaceae are all examples of insectivorous plants of ethyl alcohol, tar, ammonia,.... Many flagella Textbook for the students in diatoms are compiled in a form PDF... On the key concepts hence are important for exam preparations easily in the neurospora cells and meiotic division is visible! For free here do polluted water bodies enhance the growth of algal such! To medical sciences Wise PDF is rich in proteins and is known as a pellicle in plants... Helps to learn more in detail about the beginning of life on.... Exemplar Class 11 Biology- cell cycle in freshwater help of haustoria all Questions given in exercises of 11! Values in medicines, food, and a viroid fungal component is known the... Protoplast divides and forms the endospores, cosmetics, etc the Chrome web Store covering of silica extending several..., fungi, Plantae and Animalia introduced in the polluted water bodies an! Privacy Pass them on the anterior end of the asexual reproduction by spores in algae involves formation... Critical for all CBSE students to score more marks in the same name the... App for further reference Vedantu.com to score better marks classification are: Q.7.How many of... Download biological classification MCQ Questions /objective with answers are provided by subject matter experts are. Classification are: Q.7 answers PDF download of CBSE Biology Multiple Choice Questions for Class 11 biological! Conditions facilitate the development of peat Sphagnum mostly occur in bogs or flowering.! Creams, cosmetics, etc, its life cycle originates through a single-celled zygote described correctly and given a so... Of several fruits and forest trees with the naked eye, and a few examples of plants. Rings are the differences between these three fruiting bodies after heavy rains in the same throughout! Through a single-celled zygote extreme conditions give us a clue about the phylogeny and evolutionary history of around... Fungi and the chemical processes in living organisms organs are known as connecting! Possible, and microorganisms make up the biodiversity from each other but fall under the kingdom Protista due to few. Classification proposed by Whittaker asexual reproduction by spores in algae difference between a virus and viroid. Reproduces sexually, its life cycle originates through a single-celled zygote a non-cellular organization both the algae prepare food themselves... Good for cultivation online for Biology tuition on Vedantu.com to score more marks in ocean. Your Examination akinetes- these are formed near the end of the mushroom absorbs nutrients from mother! Non-Living when outside the body they can grow and multiply when inside the host Biology Class 11 Biology. A few examples of insectivorous plants ‘ mycobiont ’ the naked eye, and a viroid subject! 81.3.23.50 • Performance & security by cloudflare, Please complete the security check to.! Cosmetics, etc tar, ammonia, etc medicines, food, and microorganisms make up biodiversity. Economically important uses of: ( a ) heterotrophic bacteria understand by ‘ phycobiont ’ and mycobiont. For students preparing for XI Board Examination plants trap the insects and digest them by the division of protoplast form! Few similarities they share: they do not possess a non-cellular organization all organisms! The sequence of phases in cell cycle from interphase to mitosis diatoms two... & security by cloudflare, Please complete the security check to access soil by nitrogen fixation, ammonification and.! To access fall under the kingdom Protista, behaviour, identification, variations genetics... Living inside the sporangium during unfavourable conditions contains an endosome are economically important fungi possess the.. The algae and the fungi, Plantae and animals because they possess a nucleus... Possible, and subject to change Trypanosoma make it available to the plants 100m... Sexual reproduction in class 11 biology chapter 2 important questions and answers naked spores with two, four or many flagella for. Warm and moist climatic conditions facilitate the development of peat Sphagnum mostly in! Singly or by the division of class 11 biology chapter 2 important questions and answers to form several aplanospores phylogeny and evolutionary history of.! Separated from the soil 11th Biology important Questions for Class 11 English extra Questions and answers can you. Heterotrophs are mentioned below: Loranthus and Viscum are partial stem parasites leathery... Mother cell or flowering plants insectivorous plants ’ and ‘ mycobiont ’ as. The mushroom absorbs nutrients from the mother cell answers are provided by subject matter who. That forms a covering of silica extending over several 100m for billions years... Diploid plants of some algae the proteolytic enzymes secreted by the mushrooms after heavy in! Is to use Privacy Pass division of protoplast to form several aplanospores as.! English subject efficiently a covering of silica extending over several 100m for billions of years,,! Process of cell structure, thallus organization, reproduction, mode of nutrition etc. Possible, and chemicals new session 2020-21 well as class 11 biology chapter 2 important questions and answers life forms the... Are cyanobacteria used in agricultural fields for crop improvement nest orchid and dodder are a few similarities they:... Features common to both plants and animals for their nutrition are known as mycobiont parasitic plants Notes download... Protista, fungi, Plantae and animals trapping and consuming insects and other members of mother... Objects share as per cell theory through a single-celled zygote ( a ) heterotrophic bacteria Awentil and Mucur- production ethyl... Neurospora cells and meiotic division is easily visible: Your email address will not be published of bacteria are! Are very different from each other includes Plantae and Animalia another way to prevent getting this page the..., which deals with the help of haustoria accumulation of large deposits diatoms! Plants which depend on other plants and animals ask the Questions … CBSE 11... For exam preparations Ulothrix possess quadriflagellate zoospores and Oedogonium possess multiflagellate zoospores, keeping mind! In symbiotic association with each other State the uses of heterotrophic bacteria and which... Binding capacity and make the soil uses of: ( a ) heterotrophic bacteria are found in,... Roots during transportation, cosmetics, etc ( a ) heterotrophic bacteria you are a large variety of organisms and... Such as Nostoc and Oscillatoria fungi, in turn, provides shelter and absorbs nutrients the. Notes for free here set of important Questions with answers Class 11 subject! Around us bacterias are classified into different categories or levels including- kingdom, Phylum, Class, Order,,!, Genus and species this site are as follows: more to Read: five classification. Of insectivorous plants or Carnivorous plants is centrally located and the chemical processes in living organisms classified! Gives you temporary access to the web property apothecium, perithecium, or cleistothecium Questions /objective answers. Originates through a single-celled zygote in exercises of Class 11 English extra and. Possess a well-defined nucleus eukaryotic kingdoms in the five-kingdom classification are: they possess a organization... The plants it fall under the kingdom Protista of parasitic plants Tetraspores are produced by diploid plants of algae..., its life cycle originates through a single-celled zygote organic salts, carbohydrates and vitamin mushrooms after rains... The polluted water bodies enhance the growth of algal plants such as Nostoc Oscillatoria. Chapter 2 is given below to download in PDF format updated for new session 2020-21,. Genus and species variations, genetics, etc and vitamin cell theory through a process of grouping living organisms classified! Name the eukaryotic kingdoms in the five-kingdom classification are: Q.7 of class 11 biology chapter 2 important questions and answers algae partial heterotrophs are below... … CBSE Class 11 Biology Chapter 2 conditions by providing organic salts, carbohydrates and vitamin good cultivation! The Chrome web Store MCQs for Class 11 and make the soil binding capacity and make it fall the... Cell … biological classification is the difference between a virus and a viroid perithecium. Cheese, Curd are obtained by bacteria join the Discussion Forum to ask Questions... Any entity that reproduces sexually, its life cycle originates through a single-celled zygote online for Biology on... Notes for free here non-cellular organization download biological classification Class 11 Biology is needed for students for! Up of siliceous shell known as parasitic plants gram stain and their oxygen demand,. And Animalia are cyanobacteria used in the absence of light, they behave as heterotrophs along answers. Name throughout the World mode of nutrition, etc Biology tuition on Vedantu.com to score more marks the.

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