5.2 THE STEM
What are the features that distinguish a stem from a rool? These ascending part of the axis bearing branches, leaves, flowen a se p bears nodes and internodes. The region of the stem when born are called nodes while internodes are the portions between The stem bears buds, which may be terminal or axillary. Stem by green when young and later often become woody and dark bon
The main function of the stem is spreading out branch photosyr leaves, flowers and fruits. It conducts water, minerals and photes ts are for Some stems perform the function of storage of food, support, pes from and of vegetative propagation.
5.2.1 Modifications of Stem
The stem may not always be typlcally like what they are expect Chrgrou They are modified to perform different functions (Figure 5.6 ). Unth and th stems of potato, ginger, turmeric, zaminkand, Colocasia are mix store food in them. They also act as organs of perennation to is conditions unfavourable for growth. Stem tendrils which deec axillary buds, are slender and spirally coiled and help plantste leaf (o Axillary buds of stems may also get modified into woody, stralelops pointed thorns) Thorns are found in many plants such as (arra Bougainwillea. They proteet plants from browsing animals. Som ans of arid regions modify thels atems into flattened (Opuntia), of A eylindrieal (Gcupherbia) atruetures. They contain chlorophyll ani
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5.2 THE STEM
What are the features that distinguish a stem from a rool? These  ascending part of the axis bearing branches, leaves, flowen a se p bears nodes and internodes. The region of the stem when born are called nodes while internodes are the portions between The stem bears buds, which may be terminal or axillary. Stem by green when young and later often become woody and dark bon
The main function of the stem is spreading out branch photosyr leaves, flowers and fruits. It conducts water, minerals and photes ts are for Some stems perform the function of storage of food, support, pes from and of vegetative propagation.
5.2.1 Modifications of Stem
The stem may not always be typlcally like what they are expect Chrgrou They are modified to perform different functions (Figure 5.6 ). Unth and th stems of potato, ginger, turmeric, zaminkand, Colocasia are mix store food in them. They also act as organs of perennation to is conditions unfavourable for growth. Stem tendrils which deec axillary buds, are slender and spirally coiled and help plantste leaf (o Axillary buds of stems may also get modified into woody, stralelops pointed thorns) Thorns are found in many plants such as (arra Bougainwillea. They proteet plants from browsing animals. Som ans of arid regions modify thels atems into flattened (Opuntia), of A eylindrieal (Gcupherbia) atruetures. They contain chlorophyll ani
thount

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Question Text	5.2 THE STEM What are the features that distinguish a stem from a rool? These $ascending part of the axis bearing branches, leaves, flowen a se p$ bears nodes and internodes. The region of the stem when born are called nodes while internodes are the portions between The stem bears buds, which may be terminal or axillary. Stem by green when young and later often become woody and dark bon The main function of the stem is spreading out branch photosyr leaves, flowers and fruits. It conducts water, minerals and photes ts are for Some stems perform the function of storage of food, support, pes from and of vegetative propagation. 5.2.1 Modifications of Stem The stem may not always be typlcally like what they are expect Chrgrou They are modified to perform different functions (Figure $5.6$ ). Unth and th stems of potato, ginger, turmeric, zaminkand, Colocasia are mix store food in them. They also act as organs of perennation to is conditions unfavourable for growth. Stem tendrils which deec axillary buds, are slender and spirally coiled and help plantste leaf (o Axillary buds of stems may also get modified into woody, stralelops pointed thorns) Thorns are found in many plants such as (arra Bougainwillea. They proteet plants from browsing animals. Som ans of arid regions modify thels atems into flattened (Opuntia), of A eylindrieal (Gcupherbia) atruetures. They contain chlorophyll ani thount
Updated On	Jul 5, 2022
Topic	Plant Physiology
Subject	Biology
Class	Class 11
Answer Type	Video solution: 1
Upvotes	119
Avg. Video Duration	11 min

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