{"id":19279,"date":"2023-02-06T02:49:36","date_gmt":"2023-02-05T21:19:36","guid":{"rendered":"https:\/\/icsesolutions.com\/?p=19279"},"modified":"2023-02-07T10:00:47","modified_gmt":"2023-02-07T04:30:47","slug":"frank-icse-solutions-class-9-biology-flowers","status":"publish","type":"post","link":"https:\/\/icsesolutions.com\/frank-icse-solutions-class-9-biology-flowers\/","title":{"rendered":"Frank ICSE Solutions for Class 9 Biology &#8211;  Flowers"},"content":{"rendered":"<h2><span style=\"color: #00ccff;\"><strong>Frank ICSE Solutions for Class 9 Biology &#8211; Flowers<\/strong><\/span><\/h2>\n<p><span style=\"color: #00ccff;\"><strong>PAGE NO: 64<\/strong><\/span><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 1:<\/strong><\/span><br \/>\nA flower is the reproductive unit in angiosperms. It is a modified shoot in which internodes are shortened and leaves are modified into floral structure. Flower is meant for sexual reproduction.<br \/>\nA typical flower has four different kinds of whorls arranged successively on the swollen parts of a flower stalk. Flower stalk consists of the stalk called pedicel and the swollen upper part called thalamus bearing the floral leaves.<br \/>\nThe different floral whorls are calyx, corolla, androecium and gynoecium. Calyx and corolla are accessory whorls, while androecium and gynoecium are reproductive whorls.<\/p>\n<ul>\n<li><strong>\u00a0Calyx<\/strong> &#8211; The calyx is the outermost whorl of the flower and its members are called sepals. Generally, sepals are green, leaf like and protect the inner whorls of the flower in bud stage. They are also involved in producing food by photosynthesis. The calyx may be gamosepalous (sepals united) or polysepalous (sepals free).<\/li>\n<li><strong>Corolla<\/strong> &#8211; It is the second whorl composed of floral leaves called petals. Petals are usually brightly coloured to attract insects for pollination. Petals also protect the inner whorls. Like calyx, corolla may be also free (gamopetalous) or united (polypetalous). The shape and colour of corolla vary greatly in plants.<\/li>\n<li><strong>\u00a0Androecium<\/strong> &#8211; It is the third whorl and is the male reproductive whorl of a flower. Androecium is composed of one or more stamens. Each stamen consists of three parts:<\/li>\n<\/ul>\n<ol>\n<li><strong>Filament &#8211;<\/strong> It is the lower stalk of the stamen.<\/li>\n<li><strong>Anther<\/strong> &#8211; Filament bears a bilobed fertile structure called anther at its distal end. Each lobe contains two pollen sacs. The pollen grains are produced in pollen-sacs.<\/li>\n<li><strong>Connective &#8211;<\/strong> Filament of the stamen is extended in between the two anther lobes called connective.<\/li>\n<\/ol>\n<ul>\n<li><strong>Gynoecium<\/strong> &#8211; It is the innermost whorl and the female reproductive part of the flower. Gynoecium is made up of one or more carpels. A carpel consists of three parts namely stigma, style and ovary.<br \/>\nOvary is the swollen basal part containing ovules. Each ovary bears one or more ovules attached to a flattened, cushion-like structure called placenta.<br \/>\nStyle is the elongated thread like structure attached to the apex of the ovary. It connects the ovary to the stigma.<br \/>\nThe stigma is situated at the tip of the style and is the receptive surface for pollen grains.<\/li>\n<li><img loading=\"lazy\" class=\"alignnone size-full wp-image-82598\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-1.png?resize=473%2C309&#038;ssl=1\" alt=\"Frank ICSE Solutions for Class 9 Biology - Flowers 1\" width=\"473\" height=\"309\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-1.png?w=473&amp;ssl=1 473w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-1.png?resize=300%2C196&amp;ssl=1 300w\" sizes=\"(max-width: 473px) 100vw, 473px\" data-recalc-dims=\"1\" \/><\/li>\n<\/ul>\n<p><span style=\"color: #eb4924;\"><strong>Solution 2:<\/strong><\/span><br \/>\n<strong>(a) Inflorescence<\/strong> &#8211; The arrangement of flowers on the floral axis is called inflorescence.<br \/>\nFunction &#8211; Inflorescence facilitates the best arrangement and display of flowers on a branch without any sort of overcrowding. It also facilitates pollination via a prominent visual display and more efficient pollen uptake and deposition.<br \/>\n<strong>(b) Gynoecium<\/strong> &#8211; It is the innermost whorl of the flower bearing the female reproductive parts.<br \/>\nFunction &#8211; The ovary of gynoecium produces ovules which bear the female gamete.<br \/>\n<strong>(c) Placentation<\/strong> &#8211; The manner in which placenta and ovules are arranged inside the ovary wall is known as placentation.<br \/>\nFunction &#8211; Placentation helps in the best arrangement of ovules within the ovary. Placentation also helps in plant classification.<br \/>\n<strong>(d) Incomplete flower<\/strong> &#8211; A flower lacking one whorl out of the four whorls is said to be incomplete flower.<br \/>\nFunction &#8211; An incomplete flower contains either male or female reproductive organs.<br \/>\n<strong>(e) Perianth<\/strong> &#8211; When the calyx and corolla are not distinct in a flower (eg. &#8211; lily), the whorl is collectively called perianth.<br \/>\nFunction &#8211; The members of perianth, called tepals are usually brightly coloured and bear scent. This attracts insects which aids in pollination. They also protect the flower in bud condition.<\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 3:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-82600\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-2.png?resize=645%2C391&#038;ssl=1\" alt=\"Frank ICSE Solutions for Class 9 Biology - Flowers 2\" width=\"645\" height=\"391\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-2.png?w=645&amp;ssl=1 645w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-2.png?resize=300%2C182&amp;ssl=1 300w\" sizes=\"(max-width: 645px) 100vw, 645px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 4:<\/strong><\/span><br \/>\nThe flower is the reproductive unit in the angiosperms and is meant for sexual reproduction. Flowers produce seeds from which new plants grow in future. So the main function of flower is to perpetuate the species.<br \/>\nThere are six different types of flowers. These are complete, incomplete, bisexual, unisexual, actinomorphic and zygomorphic.<\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 5:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-82602\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-3.png?resize=625%2C557&#038;ssl=1\" alt=\"Frank ICSE Solutions for Class 9 Biology - Flowers 3\" width=\"625\" height=\"557\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-3.png?w=625&amp;ssl=1 625w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-3.png?resize=300%2C267&amp;ssl=1 300w\" sizes=\"(max-width: 625px) 100vw, 625px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-82605\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-4.png?resize=620%2C374&#038;ssl=1\" alt=\"Frank ICSE Solutions for Class 9 Biology - Flowers 4\" width=\"620\" height=\"374\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-4.png?w=620&amp;ssl=1 620w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-4.png?resize=300%2C181&amp;ssl=1 300w\" sizes=\"(max-width: 620px) 100vw, 620px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 6:<\/strong><\/span><br \/>\nIn certain flowers like tomato and brinjal, the calyx remains attached even after the formation of the fruit and does not wither away. Such calyx is called persistent calyx.<\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 7:<\/strong><\/span><br \/>\nCalyx is the outermost whorl of a flower which is composed of sepals. Generally these sepals are green, leaf like and protect the inner whorls of the flower in bud condition. They are also involved in producing food by photosynthesis.<\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 8:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-82606\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-5.png?resize=552%2C163&#038;ssl=1\" alt=\"Frank ICSE Solutions for Class 9 Biology - Flowers 5\" width=\"552\" height=\"163\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-5.png?w=552&amp;ssl=1 552w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-5.png?resize=300%2C89&amp;ssl=1 300w\" sizes=\"(max-width: 552px) 100vw, 552px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 9:<\/strong><\/span><br \/>\nCorolla is the second whorl composed of floral leaves called petals. Petals are usually brightly coloured to attract insects for pollination. Petals also protect the inner whorls. The shape and colour of corolla vary greatly in plants.<\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 10:<\/strong><\/span><br \/>\nThe androecium and gynoecium are the essential parts of a flower because they are involved in sexual reproduction.<br \/>\nAndroecium is the male reproductive organ of a flower and is involved in producing male gametes.<br \/>\nGynoecium is the female reproductive part of the flower and produces the female gametes.<\/p>\n<p>The non-essential or accessory parts of flowers are the calyx and corolla since they do not directly participate in the process of sexual reproduction leading to the development of seed.<br \/>\nSepals of calyx are green, leaf like and protect the inner whorls of the flower in bud stage. They are also involved in producing food by photosynthesis.<br \/>\nPetals of corolla are usually brightly coloured to attract insects for pollination; they also protect the inner whorls.<\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 11:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-82608\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-6.png?resize=647%2C366&#038;ssl=1\" alt=\"Frank ICSE Solutions for Class 9 Biology - Flowers 6\" width=\"647\" height=\"366\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-6.png?w=647&amp;ssl=1 647w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-6.png?resize=300%2C170&amp;ssl=1 300w\" sizes=\"(max-width: 647px) 100vw, 647px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 12:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-82610\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-7.png?resize=611%2C594&#038;ssl=1\" alt=\"Frank ICSE Solutions for Class 9 Biology - Flowers 7\" width=\"611\" height=\"594\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-7.png?w=611&amp;ssl=1 611w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/01\/Frank-ICSE-Solutions-for-Class-9-Biology-Flowers-7.png?resize=300%2C292&amp;ssl=1 300w\" sizes=\"(max-width: 611px) 100vw, 611px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 13:<\/strong><\/span><br \/>\n<strong>(a) Androecium<\/strong> &#8211; It is the third whorl and is the male reproductive organ of a flower. Androecium is composed of one or more stamens. Each stamen consists of three parts: Filament, Anther and Connective. The pollen grains are produced in pollen-sacs on the anthers.<br \/>\n<strong>(b) Gynoecium<\/strong> &#8211; It is the innermost whorl and is the female reproductive part of the flower. Gynoecium is made up of one or more carpels. A carpel consists of three parts namely stigma, style and ovary. Ovary is the swollen basal part containing ovules.<br \/>\n<strong>(c) Calyx &#8211;<\/strong> The calyx is the outermost whorl of the flower and its members are called sepals. Generally, sepals are green, leaf like and protect the inner whorls of the flower in bud stage. They are also involved in producing food by photosynthesis. The calyx may be gamosepalous (sepals united) or polysepalous (sepals free).<br \/>\n<strong>(d) Corolla<\/strong> &#8211; It is the second whorl composed of floral leaves called petals. Petals are usually brightly coloured to attract insects for pollination. Petals also protect the inner whorls. Like calyx, corolla may be also free (gamopetalous) or united (polypetalous).<\/p>\n<p><span style=\"color: #00ccff;\"><strong>PAGE NO: 65<\/strong><\/span><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 14:<\/strong><\/span><br \/>\n(a) Datura<br \/>\n(b) Cotton<br \/>\n(c) Cotton<br \/>\n(d) Sunflower<br \/>\n(e) Tomato<br \/>\n(f) Mulberry<\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 15:<\/strong><\/span><br \/>\n(i) (b) condensed stem<br \/>\n(ii) (b) jointed calyx<br \/>\n(iii) (c) thalamus<br \/>\n(iv) (a) reniform<br \/>\n(v) (c) capitulum<\/p>\n<p><a class=\"button-red\" title=\"FRANK ICSE Class 9 Biology Solutions\" href=\"https:\/\/icsesolutions.com\/frank-icse-solutions-class-9-biology\/\">Biology<\/a><a class=\"button-blue\" title=\"FRANK ICSE Class 9 Chemistry Solutions\" href=\"https:\/\/icsesolutions.com\/frank-icse-solutions-class-9-chemistry\/\">Chemistry<\/a><a class=\"button-blue\" title=\"FRANK ICSE Class 9 Physics Solutions\" href=\"https:\/\/icsesolutions.com\/frank-icse-solutions-class-9-physics\/\">Physics<\/a><a class=\"button-blue\" title=\"FRANK ICSE Class 9 Maths Solutions\" href=\"https:\/\/icsesolutions.com\/frank-icse-solutions-class-9-maths\/\">Maths<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Frank ICSE Solutions for Class 9 Biology &#8211; Flowers PAGE NO: 64 Solution 1: A flower is the reproductive unit in angiosperms. It is a modified shoot in which internodes are shortened and leaves are modified into floral structure. Flower is meant for sexual reproduction. A typical flower has four different kinds of whorls arranged &hellip;<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[6442,3034],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/19279"}],"collection":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/comments?post=19279"}],"version-history":[{"count":1,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/19279\/revisions"}],"predecessor-version":[{"id":158334,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/19279\/revisions\/158334"}],"wp:attachment":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/media?parent=19279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/categories?post=19279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/tags?post=19279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}