Stem
Stem: Overview
This topic covers concepts such as Stem, Nodes of a Stem, Internodes of a Stem, Modification of Stem, Aerial Stem Modification, Tendrils, Thorns, Underground Stem Modification, Bulbs in Plants, Rhizomes, Corms, and Stem Tubers.
Important Questions on Stem
The most reduced form of the stem is found in
_____ (node/meristematic) is the region of the plant where the leaves are born.
Explain the function of node of the stem
The node of the stem bears only flowers.
The portions between two nodes that contribute to the height of the plant are called _____.
Internodes are points on plants where the buds, leaves, and branching twigs originate.
What are the portions between two nodes called?
Differentiate between nodes and internodes.
Match the following
| List - I | List - II | List -III |
| A) Acacia | i) Node of stem | I) Mericarp |
| B) Dichasial cyme | ii) False septum | II) Lamiaceae |
| C) Lateral out growth | iii) Monochasial cyme | III) Photosynthesis |
| D) Argemone | iv) Phyllode | IV) Parietal placentation |
The correct answer is
Choose the incorrect statements among the following.
A) In rice, the pericarp and the seed coat are free and protect the seed.
B) In Rutaceae, the juicy succulent placental hairs of endocarp are edible.
C) The corolla in Ocimum is bilipped, whereas Datura it is funnel shaped.
D) Underground stem modification only store food material.
Match the following:
| List i | List ii | List iii | |||
| A | False septum in Ovary | i | Fig | i | Storage of food and respiration |
| B | Carrot root | ii | Banana | ii | Length of stamen filament varies |
| C | Sucker | iii | Mustard | iii | Subaerial stem modification |
| D | Hypanthodium | iv | Absorption | iv | Blastophaga |
Which of the following statements is correct?
In Citrus, Duranta and Bougainvillea, the thorns are the modified
A deep-seated, vascular structure that represents stem is called a
In Garlic (Allium sativum) each fleshy scale represents a bud called bulblet or clove. It is a bud because
A bulb without a tunic and loosely arranged scale leaves is called scaly or imbricated naked bulb. It is found in
