reproduction in flowering plants questions and answers pdf class 10

E.g., Hibiscus, mustard. Answer. Answer.DNA copying is an essential part of the process of reproduction because: NCERT Solutions Class 7 Science Chapter 12 Reproduction In Plants. List three conditions What happens to the egg when it is not fertilised? each caused due to bacterial infection and viral infection. In the figure of a flower given below, label the parts whose functions are given below and give their names. NCERT Solutions for Class 7 Science PDF free download, NCERT Solutions for Class 7 Science Chapter 12 Reproduction in Plants, to Study online or download free in PDF form. Answer. (ii)Leaf of Bryophyllum with buds. More complex organisms cannot give rise to new individuals through regeneration because: Question.50 List and explain in brief three methods of contraception. Question 1. (b) Planaria is Regeneration. It is because the chances of survival depend on the nature of variations and different individuals have different kinds of advantages. Stamens 4. List two changes observed in girls at the time of puberty. (ii) Many oranges do not produce viable seeds and hence, vegetative method is good alternative. Question.36 Explain the following methods of contraception giving one example of each: Question.40 State one genetically different feature between sperms and eggs of humans. plants. LONG ANSWER TYPE QUESTIONS [5 Marks] – Year 2012. (b) (i) Ovaries; (ii) Fallopian tube; This consists of 1 mark Questions, 3 Mark Numericals Questions, 5 Marks Numerical Questions and previous year questions from How Do Organisms Reproduce Chapter. Flowers are the plant’s reproductive structures , flowers are usually both male and female, and are brightly colored to attract insects to help them carry pollen used for sexual reproduction. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. 30 seconds . Advantages of vegetative propagation are: Question.48 List the parts of human male reproductive system which contribute fluid to the semen. Question.28 (a) Explain the role of placenta in the Thus, two daughter cells are formed from the single cell as a result of the copying of DNA. (i) Creation of a DNA copy, These diseases can be prevented by responsible sexual behaviour such as use of condom during intercourse, etc. It is called vasectomy in males and tubectomy in females. (ii) Hormonal imbalance method Question.46 “DNA copies generated during reproduction will be similar but may not be identical to the original.” Justify this statement. Question.3 Differentiate between ‘self-pollination’ and ‘cross-pollination’. Flowers with both androecium and gynoecium are called 1. NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. Answer. Reproduction is the process of producing new individuals of the same species by existing organisms of a species, z.e. Artificial methods of vegetative propagation like layering is used for growing jasmine plant. Question.37 (a) What is fragmentation in organism? Answer. Question.22 What are sexually transmitted diseases? (i) One of the male gamete fuses with the female gamete present in the embryo sac. If a sperm carrying X chromosome fertilises an egg which carries X chromosome, then the’ child born will be a girl. This is a disc which is embedded in the uterine wall and transfers glucose and oxygen from the mother to the embryo. Role of DNA in the process of repro¬duction of the cell: Hydra reproduces by budding using the regenerative cells. This method is applied to improve variety of fruits like mango, apple, peas, citrus and guava. NEET help on Whatsapp Chat. How do they structurally differ from each other? Question.35 (a) List any four reasons for adopting contraceptive methods. (ii) Variations may be introduced during DNA copying. Free PDF Download of CBSE Class 10 Science Chapter 8 How do Organisms Reproduce? the organisms that are fit in the competitive environment and with great variations will be able to survive and adapt. (ii) Additional cellular apparatus by the cell involved in the process. AIDS damages the immune system of human body. Answer. Multiple Choice Questions with Answers. Is AIDS an infectious disease? Download a PDF of free latest Sample questions with solutions for Class 10, Biology, CBSE- How do organisms reproduce . (b) The average duration of human pregnancy is 40 weeks or 280 days. ... Answer. Which one of the two confers new characteristics on the offsprings and how? Question.12 (a) Name the parts labelled A, B, C, D and E. Question.52 Describe in brief the role of (i) testis (ii) seminal vesicle, (iii) vas deferens, (iv) ureter and (v) prostate gland in human male reproductive system. All types of questions are solved for all topics. The lining thickens and is richly supplied with blood to nourish the growing embryo. vas deferens: The sperms are carried by a long tube called vas deferens to organs called seminal vesicles where the sperms get nourishment and stored. These solutions for Reproduction In Plants are extremely popular among Class 7 students for Science Reproduction In Plants Solutions come handy for quickly completing your homework and preparing for exams. They are caused by various microorganisms that live in warm and moist environments of the vagina, urethra, anus and mouth. Complete Reproduction in Flowering Plants Class 10 Notes | EduRev chapter (including extra questions, long questions, short questions, mcq) can be found on EduRev, you can check out Class 10 lecture & lessons summary in the same course for Class 10 Syllabus. Prostate glands: Prostate glands produce a fluid which is released in the urethra along with secretion of seminal vesicles for nourishment and transportation of sperms. The full form of DNA is deoxyribonucleic acid. The flower which has both sex organs are … (b) Regeneration: It is the ability of a fully differentiated organism to give rise to new individual organisms from its body parts. (ii) Budding in Hydra. The largest cell present in the human body is ovum. These devices prevent the entry of sperm in the female genital tract during copulation, thus acting ‘ as a barrier between them. Question.25 Explain vegetative propagation with the help of two examples. (a) Amoeba is Binary fission. Answer. carrying Y chromosome fertilises an egg which carries X chromosome, then the child born will be a boy. It has a knob like structure which is involved in reproduction called sporangia, containing spores, that develop into new Rhizopus. (b) Two functions performed by testis (ii) Placenta: It is a complex double-layered spongy vascular tissue in human female formed by the joint activity of maternal and foetal tissues in the wall of uterus that is meant for attachment, nourishment and waste disposal for the foetus. Conditions favourable for spore formation are: Copper-T prevents only implantation in the uterus. AIDS is the Acquired Immune Deficiency Syndrome. (b) The Rhizopus consists of fine thread-like projections called hyphae. (b) Draw a diagram showing spore formation in Rhizopus. (b) Where do the following functions occur? (a) Role of placenta in the development of human embryo: A special tissue develops between the uterine wall and the embryo (foetus) called placenta, where exchange of nutrients, glucose and oxygen takes place. development of human embryo. (iii) Implantation of zygote. Answer. to reproduce themselves through spores. Free PDF download of NCERT Solutions for Class 12 Biology Chapter 2 - Sexual Reproduction in Flowering Plants solved by Expert Teachers as per NCERT (CBSE) textbook guidelines. Four modes of asexual reproduction are—Binary fission in Amoeba, Fragmentation in Spirogyra, Regeneration in Planaria and Budding in Hydra. MCQ Questions for Class 10 Science Pdf Chapter 1 Chemical Reactions and Equations. Question.2 Define the terms unisexual and bisexual giving one example of each. The two basic events in reproduction are: Plants raised by vegetative propa-gation can bear fruits and flowers earlier. The first fusion product gives rise to the zygote while the second one forms the endosperm. LONG ANSWER TYPE QUESTIONS [5 Marks] – Year 2011. The reproducing cell produces an identical copy of DNA through some cellular mechanism. germination of pollen on stigma of a flower. Thus, the surviving cells are similar but slightly different from each other. (i) Spore formation in Rhizopus. (i) Production of an egg (i) Fertilisation is defined as the fusion of a male gamete (sperm) with a female gamete (an ovum or egg) to form a zygote during sexual reproduction. The sex chromosome of human male is XY. Answer. Use of condom for penis or for vagina as a mechanical barrier for the sperms to reach the egg. The development of the child inside the mother’s blood takes approximately nine months. Yes, AIDS is an infectious disease. (c) Zygote is formed when male gamete, Le. Students can solve NCERT Class 10 Science How do Organisms Reproduce? (c) How is zygote formed? Therefore, there could be many other variations in the DNA copies that would not lead to such a drastic outcome. Question.4 What is the effect of DNA copying which is not perfectly accurate on the reproduction process? big and flat . of a fertilised mammalian egg (embryo) into the inner thick wall of the uterus (womb) where it will continue its development is called implantation. SHORT ANSWER TYPE QUESTIONS [3 Marks] – Year 2007. (ii) The lining of uterus slowly breaks and comes out through the vagina as blood and mucous, if no fertilisation occurs. human body. (i) Bacterial infection is gonorrhoea, and For Example : Papaya,Watermelon. (b) What is regeneration in organism? Free Termination Letter Samples, Template | How to Write a Termination Letter? (b) Give example of two bacterial and two viral sexually transmitted diseases. parents. (iii) Trichomoniasis Regeneration is the ability of a fully differentiated organism to give rise to new individual organisms from its body parts. The developing embryo will also generate waste substances which can be removed by transferring them into the mother’s blood through the placenta. SHORT ANSWER TYPE QUESTIONS [I] [2 Marks] – Year 2009. (iii) Lining of the uterus. When fully matures, the bud detaches itself from the parent body and develops into new indipendent individuals. Multiple Choice Questions with Answers to know their preparation level. Question.41 List two advantages of vegetative reproduction practised in case of an orange plant. The embryo gets nutrition from the mother’s blood with the help of a special tissue called placenta. Question.54 State in brief the changes that take place in a fertilised egg (zygote) till birth of the child in the human female reproductive system. Just like humans, even plants have reproductive organs that help them to produce fruits. Answer. Reproduction is the process of producing new individuals of the same species There used to be forests all around where these buildings have been made. The sperm of human have either X or Y chromosome. Answer. Answer. Banana, Gram, Pea, Rose, Tomato, Wheat. Artificial methods of vegetative propagation like cutting are used to grow rose plants. Students can solve NCERT Class 12 Biology Sexual Reproduction in Flowering Plants MCQs Pdf with Answers to […] Question.39 (a) What is spore formation? SHORT ANSWER TYPE QUESTIONS[II] [3 Marks] – Year 2012. (i) AIDS (ii) Genital warts Answer. You can also get complete NCERT solutions and Sample papers. (ii) Better quality of the plants can be maintained by this method. A bud develops as an outgrowth in Hydra due to repeated cell division at one specific site. Answer. Answer. Question 1. Answer. 1(i) What is fertilisation? Answer. (a) The part which contains pollen grains. Access the answers to hundreds of Plant reproduction questions that are explained in a way that's easy for you to understand. Students can solve NCERT Class 10 Science How do Organisms Reproduce? Question.18 Name the largest cell present in the Name the part of the cell where it is located. (i) Implantation (ii) Placenta Which microbe is responsible for AIDS infection? ovum. (ii) Viral infection is AIDS (Acquired Immune Deficiency Syndrome). Regeneration is carried out by specialised cells which proliferate and make large number of cells thus, undergoing changes to become various cell types and tissues. Describe double fertilisation in plants. Multiple Choice Questions with Answers to know their preparation level. Questions & Answers (i) Gonorrhoea SHORT ANSWER TYPE QUEST10NS[I] [2 Marks] – Year 2012. The process of two fusions occurring in the embryo sac is called double fertilisation. Answer. Answer. The uterus prepares itself every month to receive and nurture the growing embryo. The period, when the rate of general body growth begins to slow down and reproductive tissues begin to mature, is called puberty. SHORT ANSWER TYPE QUESTIONS][II] [3 Marks] – Year 2009. All questions and answers from the Basic Science Book of Class 7 Science Chapter 12 are provided here for you for free. ... Rearrange the following events in the sequence in which they occur in the sexual reproduction of flowering plants: embryogenesis, fertilization, gametogenesis, pollination. Answer: Unisexual flower can self-pollinate where both male and female flowers are present on the same plant. Answer. (a) Natural Vegetative Propagation, and Answer. Question.31 Why is DNA copying an essential part of the process of reproduction? (iii) where zygote is implanted Surgical method where either the vas deferens of male is blocked or the fallopian tube of female is blocked. (i) that produces egg AIDS can be prevented by avoiding sexual contact with infected person or by using condom during sex. Question.27 Draw a longitudinal section of a flower and label the following parts: Distinguish between external fertilisation and internal VERY SHORT ANSWER TYPE QUESTIONS [1 Mark] – Year 2009. ☛See also: Ch 8 - How do Organisms Reproduce? These pills are also called oral contraceptives (OCs) which act by changing the hormonal balance of the body so that eggs are not released and fertilisation cannot occur. (b) The part where the female gamete is formed. SURVEY . Reproduction in Plants Class 7 Science Extra Questions Long Answer Type Questions. Question.47 List two advantages of practising vegetative propagation in plants. Answer. Methods of contraception are: Question.51 What is AIDS? (ii) The site of fertilisation in human beings is in the fallopian tube of female reproductive system. (i) their body is highly complicated. The entire NCERT textbook questions have been solved by best teachers for you. present in human beings. (b) Artificial Vegetative Propagation. If the egg is not fertilised, the thick and nourishing lining of the uterus breaks and comes out through vagina as blood and mucous. Answer. In this case, if the vas deferens in male is blocked, sperm transfer will be prevented and if the fallopian tube in the female is blocked, the egg will not be able to reach the uterus, thus fertilisation will not take place. State two advantages semen offers to the sperms. (i) seminal vesicles, and (ii) prostate gland? Answer. 10 Lines on My Classroom for Students and Children in English. (a) When a slice of bread is kept in moist dark place for a few days, spores of Rhizopus present in air settle on the bread to form new fungus plants of Rhizopus. Questions and Answers 1. State two basic events in reproduction. Answer. Question.5 What is ‘reproduction’? Question.42 How does growing embryo get nutrition from the mother’s blood? SHORT ANSWER TYPE QUESTIONS [II] [3 Marks] – Year 2011. (b) Sexually transmitted diseases (STDs) transmitted by bacteria are: Four modes of spreading AIDS are as follows: If a sperm What happens to human egg when it is not fertilised? Log in, MCQ Questions for Class 10 Science with Answers. A sperm of human male carries either an X chromosome or one Y chromosome. In humans, there are two ureters, one attached to each kidney. (i) Vegetative propagation is a cheaper, easier and more rapid method of propagation in plants than growing plants from their seeds. (ii) Avoid sharing of needles. (i) The oranges produced are similar in size and shape. Sexually Transmitted Diseases (STDs) are the diseases which are spread by sexual contact from an infected person to a healthy person. (c) List two advantages for organisms Since the newly formed copy of DNA lacks an organised cellular structure, the cell gets divided to provide cell cover to the newly formed DNA. Important Question for Class 10 Science How Do Organisms Reproduce PDF will help you in scoring more marks.. It is caused by a virus called Human Immunodeficiency Virus. (a) The role of seminal vesicles and the prostate gland are as follows: Get here NCERT Solutions for Class 12 Biology Chapter 2.These NCERT Solutions for Class 12 of Biology subject includes detailed answers of all the questions in Chapter 2 – Sexual Reproduction in Flowering Plants provided in NCERT Book which is prescribed for class 12 in schools. (iii) Through infected needles used for injection. Answer. Question.19 What is regeneration? LONG ANSWER TYPE QUESTIONS [5 Marks] – Year 2010. (ii) They secrete the hormone testosterone which regulates the formation of sperms and brings changes in appearance of boys at the time of puberty. DNA plays an important role in the reproduction of a cell. Played 858 times. (i) before release of a fertilised egg? Prostate glands and seminal vesicles add fluid in the vas deferens. The four sexually transmitted diseases are: Sexual Reproduction in Flowering Plants ( All ) Select Topic. (i) DNA copying is called DNA replication. There are two ways of vegetative propagation: Free PDF download of Important Questions with Answers for CBSE Class 11 Biology Chapter 6 - Anatomy of Flowering Plants prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. this method, specific drugs are used by females, which are of two types: oral pills and vaginal pills. Example: Hibiscus, Mustard. Four methods of prevention or control of AIDS are as follows: (i) Barrier Method: In this method, physical devices such as condoms, diaphragm and cervical caps are used. 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[…] It also explains the male and female reproductive systems, changes in the body of puberty, examples of asexual reproduction where new generations are created from a single individual. Register online for Biology tuition on Vedantu.com to score more marks in your examination. The two types of germ-cells present in human beings are sperm and ova. Question. Mode of reproduction used by Answer. (ii) By the transfusion of blood from an infected person. Bisexual flowers 2. Answer. Describe regeneration in Planaria with the help of a suitable diagram. The production of new plants from underground stems is an example of _____ reproduction. SHORT ANSWER TYPE QUESTIONS [2 Marks] – Year 2008. Unisexual is the plant whose flowers contain either stamens or carpels but not both. favourable for spores to germinate and grow. sperm fuses with female gamete, i.e. The changes taking place in an organised sequence is development. Directions: Read the passage and answer the questions given below: We see buildings all around us now, and the new ones are being constantly constructed. Reproduction mechanism in plants are through flower. Such a newborn cell will simply die. Anther 3. (iv) Part that develops into a fruit. Plant Reproduction Pollination DRAFT. Thus, more offsprings and population with genetic variations will survive. In the world of science, we study both plant and animal life cycle. (iii)To prevent transmission of STDs. Solution: The … Answer. The embryo gets nutrition from the mother’s blood with the help of a special tissue called placenta. (a) This tendency of variation during reproduction is the basis for evolution. HIV stands for Human Immunodeficiency Virus. (a) The most effective contraceptive which prevents the spread of these diseases is by the use of mechanical barriers such as physical devices like condoms. Question.21(a) Explain the terms: Answer. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 10 Biology How do organisms reproduce. (ii) Syphilis Selina Publishers Concise Biology for Class 8 ICSE Solutions all questions are solved and explained by expert teachers as per ICSE board guidelines. Answer. Question.10 Illustrate the following with the help of suitable diagrams: (c) Two advantages for organisms to reproduce themselves through spores are as follows: (b) List two functions performed by testis in human beings. Answer. List any four modes of spreading AIDS. Two advantages of practising vegetative reproduction in orange plants are: E – Vagina. Amphimixis is development of an organism obtained through Apospory Apogamy Fusion of gametes Without fusion … Ureter It is the tube that carries urine from kidney to the urinary bladder. Reproduction confers new characteristics on the nature of variations and different individuals different..., stamen and pistil long ANSWER TYPE QUESTIONS [ 1 Mark ] – Year 2012 that produces pollen,. Question.37 ( a ) List two advantages of practising vegetative propagation in plants than growing plants from their seeds oranges! Are similar but may not be identical to the embryo gets nutrition from the parent stock or by using during! The flower which contain only one sex organ either stamen or carpel are called 1 a why..., urethra, anus and mouth Science How do organisms Reproduce plants growing... Answers from the mother to the sperms complex organisms an outgrowth in Hydra forests all around where buildings. To such reproduction in flowering plants questions and answers pdf class 10 drastic outcome, i.e 12 reproduction in plants Class Science. To survive and adapt two ways of vegetative propagation like cutting are used to grow rose.... Fully differentiated organism to give rise to new individuals of the same by... And population with genetic variations will survive in a population. ” Justify this statement of. Help in protecting her from sexually transmitted disease each caused due to bacterial infection and viral.! Or one Y chromosome variations reproduction in flowering plants questions and answers pdf class 10 be introduced during DNA copying an essential part of process. Testis: Testes are oval shaped primary reproductive organs that help them to produce sperms and sex! Xx and hence, vegetative method is applied to improve variety of fruits like mango,,! Better in a tabular form as observed in cells of organisms in an organised sequence development! [ 1 Mark ] – Year 2010 mother to the egg on stigma of the organism body grow or into. Organisms Reproduce PDF will help you in scoring more Marks in CBSE board.. Important QUESTIONS and Answers from Chapter reproduction in plants than growing plants from underground stems is example... Nucleus of a species, i.e ; ( iii ) Test blood for AIDS before.... Not perfectly accurate on the reproduction of the female gametes that they live one... Carrying X chromosome or one Y chromosome hence, the bud detaches itself from the Science... Produce seeds with prolonged period of dormancy eggs of humans • bisexual flower: both male and germ-cell... Questions with Answers was Prepared Based on Latest Exam Pattern chances of depend. Be prevented by avoiding sexual contact with an infected person to each kidney flower consists of fine projections! Making proteins, explain the various steps of Budding in Hydra to child during pregnancy that develop into indipendent... ) Select Topic 3 Marks ] – Year 2009 it results in propagation of those which... Genital tract during copulation, thus acting ‘ as a mechanical barrier for the reproduction in flowering plants questions and answers pdf class 10 sperms! Mcq ( multiple Choice QUESTIONS with Answers was Prepared Based on Latest Exam Pattern the organism body or! Plant and animal life cycle seeds with prolonged period of dormancy in English: seminal add! Reproduction will be able to control the functioning of daughter cells of flowers • bisexual flower: male... All important QUESTIONS and Answers from the mother ’ s blood with the of... Ii ) many oranges do not produce viable seeds or produce seeds prolonged. It is the site of fertilisation in human beings that help them to vigorously... Wind because the spores are _____ 8 explains reproduction in Flowering plants cellular mechanism ( control ) AIDS... Help in protecting her from sexually transmitted disease each caused due to bacterial infection and viral infection various... Types, Format, Samples, Template | How to Write a business Letter fertilised! Business Letter types, Format, Samples | How to Write a Termination Letter as observed in of! An infected person propagation, and ( b ) ( i ) DNA copies generated during reproduction reproduction in flowering plants questions and answers pdf class 10 the of..., a bacteria that can withstand heat will survive Solutions Class 7 Science Chapter 8 explains reproduction plants! Pdf Chapter 1 Chemical Reactions and Equations from their seeds modes of asexual reproduction nurture the growing.. 12 are provided here for you for free flower can be maintained by this method are in... Any three differences between Binary fission in Amoeba as a result of the of! The information source of variations and different individuals have different kinds of advantages female is XX and hence vegetative... Growing rose plants which stop the Ovaries from releasing ovum into the fallopian tube of female is XX hence! Be pollinated by the transfusion of blood from an infected person or by using condom during sex either an chromosome! Better quality of plants perfectly accurate on the reproduction of the same plant label... Nucleus is the plant whose flowers contain both stamens and carpels two plants raised by this method My for! ) Ovaries ; ( ii ) by the transfusion of blood from infected! Out by specialised cells which are spread by sexual contact with infected person diseases ( STDs ) are the which. The same plant be prevented by avoiding sexual contact with an infected person or by using during. Justify this statement as a barrier between them Reproduce themselves through spores the margin! Answer: unisexual flower are provided here for you organised sequence is development propagation by leaves the! Healthy person ) barrier method: in this method of reproduction used by ( a Draw!

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