FAQs on Morphology Of Flowering Plants Video Lecture - Additional Study Material for Class 11
1. What is the importance of studying the morphology of flowering plants? |
|
Ans. Studying the morphology of flowering plants is important because it helps us understand the structure and form of different plant parts such as roots, stems, leaves, flowers, and fruits. This knowledge is crucial for plant identification, classification, and taxonomy. It also helps in understanding the functions of different plant parts and their adaptations to various environmental conditions.
2. What are the different types of roots found in flowering plants? |
|
Ans. Flowering plants have various types of roots, including taproots, fibrous roots, adventitious roots, and prop roots. Taproots are characterized by a single, main root that grows vertically downward, such as in carrots and radishes. Fibrous roots are a cluster of thin, branching roots that spread horizontally, like in grasses. Adventitious roots arise from unusual places, such as stems or leaves, and are commonly found in plants like ivy. Prop roots develop from the lower nodes of the stems and provide additional support to the plant, as seen in banyan trees.
3. How do stems of flowering plants differ in structure and function? |
|
Ans. Stems of flowering plants vary in structure and function. Herbaceous stems are soft, green, and flexible, while woody stems are hard, rigid, and brown. Stems serve multiple functions, including transportation of water, nutrients, and sugars between roots and leaves, support for leaves and flowers, and storage of food reserves. Some stems also have the capacity to produce new plants through vegetative propagation.
4. What are the different types of inflorescences found in flowering plants? |
|
Ans. Inflorescences refer to the arrangement of flowers on a plant. There are several types of inflorescences, including racemose, cymose, umbel, spike, panicle, and head. Racemose inflorescence has a single main axis with flowers attached laterally, like in the snapdragon. Cymose inflorescence has a main axis that terminates in a flower, and subsequent flowers are produced from lateral branches, as seen in the lily. Umbel inflorescence has flowers with equal length stalks arising from a common point, like in the onion. Spike inflorescence is characterized by flowers attached directly to the main axis, such as in wheat. Panicle inflorescence has a branched arrangement of flowers, like in oats. Head inflorescence consists of tightly packed flowers on a flattened or convex receptacle, as seen in sunflowers.
5. What are the different types of fruits formed by flowering plants? |
|
Ans. Flowering plants produce various types of fruits, including fleshy fruits, dry fruits, aggregate fruits, and multiple fruits. Fleshy fruits, like apples and oranges, have a soft and juicy pericarp (fruit wall). Dry fruits, such as nuts and grains, have a hard and dry pericarp. Aggregate fruits, like strawberries, are formed from a single flower with multiple ovaries. Multiple fruits, such as pineapples, are formed from multiple flowers that fuse together to form a single fruit. Fruits play a crucial role in seed dispersal and protect seeds during their development.