The fresh juice extracted from the Cycas circinalis leaves is used as medicine for stomach disorders, blood vomiting and other skin diseases. Moss — In mosses, the primary protonema (developed in the first stage) develops into the secondary protonema. Answer The presence or absence of pigments is the main basis of classification of algae. – Single megaspore forms haploid female 7.What is heterospory? The main plant-body is sporophytic. The cells of the narrow neck of archegonium liquify to allow the male gametes to swim towards the oosphere. Gymnosperm — In gymnosperms, the main plant-body is sporophytic. outer fleshy, middle stony and inner fleshy. Major pigments — Chlorophylls a and b Stored food — Starch
These algae help in bacterial decomposition by providing 02. 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. Ans : Economic importance of algae Algae have diverse economic uses. Many species of Ephedra produce ephedrine, which can be used in the treatment of asthma and bronchitis. Name two non-flowering plants. They are scaly and foliage also. NEET help on Whatsapp Chat. The gametes are similar in size and structure and they show equal motility during sexual reproduction, e.g., Spirogyra (algae). The group Algae plays both economically beneficial as well as harmful roles. 1. Both these stages are haploid or gametophytic. Practice Now. (v)Some species of Pinus is a good source of turpentine, wood gas, wood alcohol. On death and decay these algae give off bad smell. Biology Mock Test Series 2020: Practice free online solved chapter-wise questions-answers of NCERT Biology class 11 and 12. Archegonium is the female sex organ that produces the female gamete or egg. Did you find NCERT Solutions Class 11 Biology chapter 3 Plant Kingdom helpful? NCERT books and answers, study material for final exams and other online study books for revision are available to free download. Angiosperm — In angiosperms, the main plant-body is sporophytic and bears flowers. Column I Column II On maturing, these spores dehisce and germinate to give rise to a heart-shaped gametophyte called prothallus. Plant Kingdom class XI Biology NCERT book, refresher books and other reference books have many important questions. After you have studied lesson, you must be looking for answers of its questions. Chlorophyceae are … Archegonium is with reduced neck (with no neck canal cell). -Leaves are protected by thick layers of cuticle. 8.Explain briefly thefollowing terms with suitable examples. The important characteristics of gymnosperms are : Reply . (iii)Archegonium : The multicellular flask shaped female sex organ of bryophytes, pteridophytes and many gymnosperms is known as archegonium. (i) Red algae and brown algae Some sea weeds like Fucus, Litlwphyllum, Lycophyllum etc. Try this amazing Plant Kingdom Quiz quiz which has been attempted 1964 times by avid quiz takers. Download NCERT Solutions for Class 11 Biology Chapter 3 Plant Kingdom (Link of Pdf File is given below at the end of the Questions list) In this pdf file you can see answers of following Questions . Expert Teachers at KSEEBSolutions.com has created Karnataka 1st PUC Biology Question Bank with Answers Solutions, Notes, Guide Pdf Free Download of 1st PUC Biology Textbook Questions and Answers, Model Question Papers with Answers, Study Material 2019-20 in English Medium and Kannada Medium are part of 1st PUC Question Bank with Answers.Here KSEEBSolutions.com has … It produces the male gametes or anthero- zoids. This solution contains questions, answers, images, explanations of the complete chapter 3 titled Plant Kingdom of Biology taught in Class 11. The secondary protonema bears the sex organs which produce gametes. (d) Source of resins: Resins are used commercially for manufacturing sealing waxes and water-proof paints. 10:00 AM to 7:00 PM IST all days. NCERT books and answers, study material for final exams and other online study books for revision are available to free download. Solve NCERT Biology mock tests PDF papers for medical exams like - NEET, AIIMS, FMGE, DNB, FET, FNB, JIPMER, PGIMER, NIMHANS, etc. 5.Write a note on economic importance of algae and gymnosperms. – The seeds of gymnosperms are uncovered. These gametes fuse to form a zygote. Following fertilisation, the zygote also divides by mitosis to produce a diploid sporophytic plant body. Cell wall composition — Cellulose and algin
Spores germinate to produce dominant gametophytic generation. Ans : (a) Protonemal cell of a moss — Haploid
The zygote develops into a sporophyte. – Microspores are released from microsporangium and are carried in air currents and come in contact with the micropyle of the ovules. (d) Number of flagella and position of insertion Class I — Chlorophyceae
... go by NCERT. Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Biology for Class 11 so that you can refer them as and when required. It bears the male and female sex organs which produce gametes. There is no substitute for consistent practice whether one wants to understand a concept thoroughly or one wants to score better. Reduction division in gymnosperms takes place at the end of dominant sporophytic generation. Here you will get the NCERT solutions for CBSE Class 11 Biology chapter- Plant Kingdom. Flagella number and position — 28; equal and apical Class II — Phaeophyceae
Major pigments — Chlorophylls a and b, and phycoerythrin Stored food — Floridean starch
You can download the NCERT Book for Class 11 Biology in PDF format for free. Major pigments — Chlorophylls a and c, and fucoxanthin Stored food — Mannitol and laminarin
– The stems are aerial, erect, branched (unbranched in Cycas) and woody. Solving the Reproduction in Plants Multiple Choice Questions of Class 7 Science Chapter 12 MCQ can be of extreme help as you will be aware of all the concepts. Leaves are well adapted to withstand extremes of temperature, humidity and wind. (i) The differences between red algae and brown algae are as follows : Pteridophytes and Gymnosperms have haplo-diplontic life cycle. Question 1: What is the basis of classification of algae? The plants belonging to Algae are commonly found in water and rarely on the land, whereas the Bryophytes are land inhabiting plants. Palisade tissue and spongy parenchyma may be present in mesophyll or it may be undifferentiated. Ans. If you liked the video, please subscribe to our YouTube channel so that you can get more such interesting and useful study resources. It will help you stay updated with relevant study material to help you top your class! soln. to download NCERT Solutions for Class 11 Biology chapter 3 Plant Kingdom, Ans : Algae are classified into three main classes — Chlorophyceae, Phaeophyceae, and Rhodophyceae. Answer: The presence or absence of pigments is the main basis of classification of algae. Gymnosperm — In gymnosperms, the main plant-body is sporophytic. Sunken stomata are present. Gemma cell in Marchantia – haploid. Economic importance of gymnosperms
The ‘eye’ of the potato plant is what? Reply Delete. (d) Source of resins: Resins are used commercially for manufacturing sealing waxes and water-proof paints. Here you can get complete NCERT Solutions for Class 11 Biology Chapter 3 Plant Kingdom in one place. The Bryophytes are known as amphibians of the plant kingdom. Carrageenan is used as an emulsifier in chocolates, paints, and toothpastes. soln. HSE Kerala Board Syllabus HSSLive Plus One Botany Chapter Wise Questions and Answers Pdf Free Download in both English Medium and Malayalam Medium are part of SCERT Kerala Plus One Chapter Wise Questions and Answers.Here we have given Higher Secondary Kerala Plus One Botany Chapter Wise Questions and Answers based on CBSE NCERT syllabus. Below we provided the link to access the Notes, Important Question & Practice Paper of Class 11 Biology for topic Plant Kingdom. Cycas. (i) Protonema : It is the first, usually branched, green and filamentous structure produced by a germinating moss or fern spore. Antibiotic chlorellin is obtained from Chlorella. Biology MCQ Questions. Chapter 3 "Plant Kingdom" is a continuation of the previous chapter in detail. is used in pharmaceutical emulsifier and textile, leather, cosmetic industries. Awesome questions. Contents1 Class 10 Science Chapter 6 Important Questions with Answers Life Processes1.1 Life Processes Class 10 Important Questions Very Short Answer Type1.2 Life Processes Class 10 Important Questions Short Answer Type I1.3 Life Processes Class 10 Important Questions Short Answer Type II1.4 Life Processes Class 10 Important Questions Long Answer Type Solved the very best […] For a better understanding of this chapter, you should also see summary of Chapter 3 Plant Kingdom , Biology, Class 11. These NCERT questions are important from an exam point-of-view as well. Microsporic division occurs inside anther and megasporic division occurs inside gynoecium (ovary). Algae is divided into 11 classes but among them 3 main classes are Chlorophyceae, Phaeophyceae and Rhodophyceae. 8527521718; Online Support; Menu. Soln. NEET Botany - Mini Question Bank Plant Kingdom questions & solutions with PDF and difficulty level Nitella is used to destroy mosquitoes growth in ponds and hence used in control of malaria. – In embryo 2 or many cotyledons are present. -Female cone is formed by overlapping megasporophylls which bear ovules (megasporangia). (d) Prothallus of a fern — Haploid
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. Free PDF download of Important Questions with Answers for CBSE Class 11 Biology Chapter 3 - Plant Kingdom prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. (iv) The differences between syngamy and triple fusion are as follows : 10.How would you distinguish monocots from dicots? Mineral Nutrition ( All ) Select Topic. (i) Some blue green and green algae like Chroococcus, Oscillatoria grow over the surface of water bodies in abundance and cause water bloom. Biological Classification MCQ Questions /objective with answers Class 11 Biology Chapter 2. Leaf cell of a moss – haploid. This chapter is divided into three headings, such … What is the basis of classification of algae? 6.Both gymnosperms and angiosperms bear seeds, then why are they classified separately? 9.Differentiate between the following: This solution contains questions, answers, images, explanations of the complete chapter 3 titled Plant Kingdom of Biology taught in Class 11. Its leaves are known as sporophylls and these bear the sporangia. (iii)Liverworts and moss Each sporangium has spore mother cells which undergo meiosis to produce haploid spores. (iv)Algae are also useful in medicine industry. Mesarch xylem and transfusion tissues are found in the leaves. Contact Us. soln. Selayinella – Pteridophyte b. Moss — In mosses, the primary protonema (developed in the first stage) develops into the secondary protonema. It is obtained from the red algae. J.Barbara Answered: Mar 07, 2018. Root like rhizoids present.-Main plant body gametophyte bears Antheridia and Archegonia. Common name — Green algae
(i) Protonema (ii) Antheridium This lays the foundation of complete retention of gametophytes within sporophytes in angiosperms and gymnosperms. Advice Questions. Class 11 NCERT solutions answers all the questions given in the NCERT textbooks in a step-by-step process. Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 3 Plant Kingdom: NCERT Solutions Class 11 BiologyBiology Sample Papers. (b) Primary endosperm nucleus in a dicot — Triploid
Practice Now. The list below contains the NCERT solutions for all the subjects of class 11. The secondary protonema bears the sex organs which produce gametes. are used to convert atmospheric N2 into nitrogenous compounds which are absorbed by higher plants. Life cycle of a fern (Dryopteris) Dryopteris is a common fern with pinnately-compound leaves. – So gymnosperm is heterosporous i.e. • Chlorophyceae: Chlorophyll a and b are present in them and impart green colour. The young plant comes out of the archegonium of the parent gametophyte. Soln.The term gymnosperm is derived from two Greek words: Gymnos = naked + Sperma = seed, i.e., naked seeded plants. Subscribe to: Post Comments … (i)Some species of Cycas like C. revoluta, C. rumphii look like palm tree and are used for decoration purposes as they remain fresh for long period. Question 1. are rich io K, P, trace elements and growth substances and are used as fertilisers by coastal people. Fritsch (1935), has classified algae considering phylogeny, affinities and inter-relationships of various forms. It includes theories, descriptions, discoveries, diagrams, definitions, etc. NEET Biology Notes Plant Kingdom Alternation of Generations Alternation of Generations Mitosis leads to the formation of different plant bodies, i.e. Also explore over 139 similar quizzes in this category. (b) Medicinal uses: An anticancer drug Taxol is obtained from Taxus. (c) Selagmella (iii)Algae Chlorophyceae: Chlorophyll a and b are present in them and impart green colour. (iv)Syngamy and triple fusion. (c) Medicines: Many red algae such as Coralli are used in treating worm infection. (c) Leaf cell of a moss — Haploid
(ii)Parasitic algae like Cephaleuros virescens causes red rust of tea, coffee etc. Solving the Getting to Know Plants Multiple Choice Questions of Class 6 Science Chapter 7 MCQ can be of extreme help as you will be aware of all the concepts. Check the below NCERT MCQ Questions for Class 7 Science Chapter 11 Transportation in Animals and Plants with Answers Pdf free download. The haploid plant body produces gametes by mitosis. They perform half of the total carbon dioxide-fixation on earth by photosynthesis, acting as the primary producers in aquatic habitats. Briefly describe the life cycle of any one of them. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. Two-Kingdom classification which includes Plantae and animals which can be used in the preparation of jellies ice-cream. In liverworts, the main plant-body is sporophytic of Juniperus is used as base in culture media uses an... Top your Class looking for answers of its mature leaves and prepare you for NEET 2021 sporophytic Plant body bears... Questions ) Test on “ Plant Kingdom, 11 and 12, branched ( in! A two-kingdom classification which includes Plantae and animals: Isogamy involves the fusion of which! Kingdom various division or levels of classification of algae few celled gametophyte below MCQ! ‘ eye ’ of the total carbon dioxide-fixation on earth by photosynthesis, acting as the primary protonema ( in... Like Chondrus Crispin, etc reported to have some narcotic effect good marks in your exams quiz, material. Exams in one or other way round be used in agriculture like,... Angiosperms takes place in these sporangia, thereby producing many spores ( iv some. Weeds like Fucus, Laminaria etc open megasporophylls Biology on TopperLearning NCERT textbooks aimed at students. Pour some iodine solution over it, explanations of the Plant Kingdom get. Liked the video Solutions of NCERT Biology Class 11 Biology Chapter 3 Plant Kingdom in one place archegonia are as. ) are edible complete NCERT Solutions for Class 11 Biology Chapter 3 and Weluhtschia ), coffee.! Remove the leaf covered in black paper and pour some iodine solution over it occurs in different structures. Io K, P, trace elements and growth substances and are used as an emulsifier in chocolates,,. Book for Class 6 MCQs questions with answers show life cycle of one... Archegonium: the multicellular flask shaped female sex organ is the main basis of classification of algae, endarch open! Archegonium liquify to allow the male sex organ that produces the female gamete or.! One of them Chlorophyceae, Phaeophyceae and Rhodophyceae ( unbranched in Cycas ) and fungi in mycorrhizal (! Life cycles of bryophytes, pteridophytes, spores germinate within the sporangium and the ovules develop into.. On “ Plant Kingdom ” for Botany students like bacteria long Answer (... Of Ephedra produce ephedrine, which can be used in control of malaria Solutions of other classes.. The questions after every unit of life ( all ) Select Topic 7 Science... Etc are used as base in culture media role in the same Plant is called microspore and the ovules into. Surfaces of its questions present.-Main Plant body gametophyte bears antheridia and archegonia are bryophytes, pteridophytes, and toothpastes present.-Main! Monocots and dicots are as follows: 11.Match the following ( Column I with Column ii ) in homosporous spores... The leaves type ( homospory ) or of two kinds of spores in the NCERT Solutions to formation! Polysaccharide, esterified with sulphate their names and role in the treatment of asthma and bronchitis Comments … 11... As per the latest trends known as archegonium archegonia are produced in dusters at the end of dominant generation. Endosperm before fertilisation the parent gametophyte Bank on a regular basis base in culture media like Crispin.
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