{"id":20572,"date":"2019-07-16T01:26:32","date_gmt":"2019-07-15T19:56:32","guid":{"rendered":"https:\/\/www.cbselabs.com\/?p=20572"},"modified":"2021-09-18T15:18:31","modified_gmt":"2021-09-18T09:48:31","slug":"ncert-solutions-for-class-11-biology-morphology-of-flowering-plants","status":"publish","type":"post","link":"https:\/\/www.cbselabs.com\/ncert-solutions-for-class-11-biology-morphology-of-flowering-plants\/","title":{"rendered":"NCERT Solutions For Class 11 Biology Morphology of Flowering Plants"},"content":{"rendered":"

NCERT Solutions For Class 11 Biology Morphology of Flowering Plants<\/span><\/h2>\n

Topics and Subtopics in\u00a0NCERT Solutions for Class 11 Biology Chapter 5 Morphology of Flowering Plants<\/strong>:<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Section Name<\/strong><\/td>\nTopic Name<\/strong><\/td>\n<\/tr>\n
5<\/td>\nMorphology of Flowering Plants<\/td>\n<\/tr>\n
5.1<\/td>\nThe Root<\/td>\n<\/tr>\n
5.2<\/td>\nThe Stem<\/td>\n<\/tr>\n
5.3<\/td>\nThe Leaf<\/td>\n<\/tr>\n
5.4<\/td>\nThe Inflorescence<\/td>\n<\/tr>\n
5.5<\/td>\nThe Flower<\/td>\n<\/tr>\n
5.6<\/td>\nThe Fruit<\/td>\n<\/tr>\n
5.7<\/td>\nThe Seed<\/td>\n<\/tr>\n
5.8<\/td>\nSemi-technical Description of a Typical Flowering Plant<\/td>\n<\/tr>\n
5.9<\/td>\nDescription of Some Important Families<\/td>\n<\/tr>\n
5.10<\/td>\nSummary<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

NCRT TEXTBOOK QUESTIONS SOLVED<\/strong><\/span><\/h3>\n

1.What is meant by modification of root? What type of modification of root is found in the:<\/strong><\/span>
\n (a) Banyan tree<\/strong><\/span>
\n (b) Turnip<\/strong><\/span>
\n (c) Mangrove trees<\/strong><\/span>
\nSoln.<\/strong><\/span>Roots of some plants change their shape and structure and become modified to perform certain functions other than absorption and conduction of water and minerals. It is called modification of roots. Roots are modified for support, storage of food and respiration, etc.
\n(a) Root modification in banyan tree : In banyan tree, the root modifies to form prop roots. Prop roots arise from branches and enter the soil. Thus, they provide mechanical support to densely branched, huge trees.
\n(b) Root modification in turnip : The
\nmodification of root found in turnip is napiform for food storage. The upper portion of these fleshy roots is inflated or swollen which tapers towards the lower end.
\n(c) Root modification in mangrove trees : In mangrove plants, i.e., plants growing in saline marshes, the branches of tap root come out of the ground and grow vertically upwards showing negative geotropism. These roots are called pneumatophores. They help to get oxygen for respiration.<\/p>\n

2.Justify the following statements on the basis of external features:<\/strong><\/span>
\n (i) Underground parts of a plant are not always roots.<\/strong><\/span>
\n (ii) Flower is a modified shoot.<\/strong><\/span>
\nSoln.<\/strong><\/span> (i) Underground parts of plant are not always roots because sometimes the stem also becomes underground and gets modified into various forms to perform different functions of storage, vegetative propagation, perennation, etc. Underground modifications of stems are tuber, rhizome, corm and bulb. The underground stems can be distinguished from roots externally by the presence of nodes and internodes, axillary buds, scale leaves etc. and by absence of root cap and root hairs.
\n(ii) Flower is the reproductive part of the angiospermic plant and it is defined as the modified shoot because (a) like shoot, flower develops from an axillary or rarely terminal bud. (b) flowers may get modified into fleshy buds or bulbils, (c) A transition from foliage leaves to floral leaves is found in Paeonia. (d) Nymphaea shows transition from sepals to petals and petals to stamens, (e) In Passiflora and Cleome long intemodes occur below gynoecium and stamens.<\/p>\n

More Resources for CBSE Class 11<\/strong><\/p>\n