Reproduction Class 10 Notes

Important Complete Notes on Chapter No.14: Class 10 Biology Chapter 5 Notes written by Professor Mr. Adnan Haider. These computerized notes are very helpful in the preparation of Support and Movement Class 10 Notes for Class 10 Biology Chapter 5 Notes of the 10th class Biology and these are according to the paper patterns of all Punjab boards.

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• Very Important Multiple Choice Questions (MCQs) with Answers of the Chapter No. 14: Reproduction Class 10 Notes in Biology English Medium Class 10th Punjab Book Boards.
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• Define reproduction. Give its types.
• What is difference between Sexual and Asexual Reproduction?
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• Write down two advantages of the process of reproduction.
• What is the difference between regeneration and binary fission?
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• How docs binary fission take place in unicellular eukaryotes?
• Describe the process of spore formation in 'Rhizopus'.
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• It is a process in which an unfertilized egg develops into new offspring. In honey bees. Many eggs remain unfertilized and develop into haploid males (drones) by parthenogenesis. 
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• At the same time some eggs are fertilized by the male bees and these develop into diploid females (new queen and worker bees).
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• What is meant by vegetative propagation of plants?
• Write the names of four methods of natural vegetative propagation.
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• How reproduction of plants takes place by Bulbs? Give any two examples.
• Write names of plants which are reproduced by bulbs and corms.
• How plants reproduce by suckers? Give example.
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• Write the name of Reproductive whorls of the flower.
• Define pollination. Dive two examples of air pollinated flowers.
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• Endosperm tissue formed from endosperm nucleus. In angiosperms, the stored food is derived from the endosperm tissue. This tissue is rich in oil or starch and protein. In many seeds, the food of the endosperm is absorbed and stored by cotyledons.
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• Write the names of parts of male reproductive system of rabbit.
• In case of yeast, a small bud is formed on one side of the cell. The nucleus of the cell divides and one of the daughter nuclei is passed into the bud. Parent cell many form more than one bud at a time.
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•  Each bud enlarges and develops the characteristics of parent organism. The bud many separate from the parent body.
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• Why do gardeners use the methods of cutting and grafting?
• Describe the structure of Female Reproductive Part of Flower. Diagram is necessary.
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• Why reproduction is necessary for living organism. Describe any three methods of a sexual reproduction.
• Explain male reproductive system in Rabbit. OR Explain female reproductive system in Rabbit
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• What is Pollination? Discuss its kinds. OR Compare the insect and wind pollinated flowers.
• Write two advantages and two disadvantages of vegetative propagation in plants.
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• Spore Formation: It is generally seen in most fungi (e.g. Rhizopus). When Rhizopus reaches reproductive age, its body cells form thick walled spore sacs called sporangia (sing. sporangium). Inside each sporangium, a cell divides many times and forms many daughter cells called spores.
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•  Each spore is covered with a thick wall called cyst and it can survive unfavourable conditions. When sporangia are mature, they burst and release spores. Under favourable conditions, the spores germinate and develop into new Rhizopus.
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• Spore formation in Rhizopus; Mature sporangium (left), sporangium bursts (right) Under unfavourable conditions, some species of bacteria reproduce by forming spores, e.g. Clostridium and Bacillus species. The bacterial spores are also thick-walled. They are formed inside bacterial cells, so are called endospores.
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• Parthenogenesis: Parthenogenesis is also considered as a form of asexual reproduction. In it, an unfertilized egg develops into new offspring. Some fishes, frogs and insects reproduce by means of parthenogenesis. 
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• Similarly, queen honeybee lays eggs in the cells of honeycomb. Many eggs remain unfertilised and develop into haploid males (drones) by parthenogenesis. At the same time, some eggs are fertilized by male bees and these develop into diploid females (new queen and worker bees).Vegetative Propagation.
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• When vegetative parts of plants i.e. roots, stems or leaves give rise to new plants, the process is called vegetative reproduction or vegetative propagation. It occurs naturally, and can also be brought about artificially.
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