The Stem: General Features and Functions
Characteristics of the stem, including nodes, internodes, buds, and its primary functions like conduction and support.
What is The Stem: General Features and Functions?
A point on the stem where one or more leaves, buds, or branches arise.
Key points
- Identify the main characteristics of a stem.
- Differentiate between nodes and internodes.
- Explain the role of terminal and axillary buds.
- List the primary functions of the stem.
Common exam trap
Confusing nodes and internodes.
Definitions
- Term
Node
- Meaning
A point on the stem where one or more leaves, buds, or branches arise.
- Term
Internode
- Meaning
The part of the stem between two successive nodes.
- Term
Terminal Bud
- Meaning
A bud located at the apex of the stem, responsible for primary growth in length.
- Term
Axillary Bud
- Meaning
A bud located in the axil of a leaf, which can develop into a branch or a flower.
Learning objectives
Identify the main characteristics of a stem.
Differentiate between nodes and internodes.
Explain the role of terminal and axillary buds.
List the primary functions of the stem.
Prerequisites
Basic plant morphology.
Understanding of plant growth directions (phototropism, geotropism).
Common mistakes
Confusing nodes and internodes.
Not distinguishing between terminal and axillary buds.
Overlooking the role of stems in vegetative propagation and modification.
Keywords
Stem
Node
Internode
Bud
Terminal Bud
Axillary Bud
Plumule
Phototropism
Geotropism
Conduction
Support
Practice preview
Which of the following is a primary function of the stem?…
easy
The part of the stem from which leaves, branches, and flowers arise is called:…
easy
The region between two successive nodes on a stem is known as:…
medium