The Ground Tissue System
Includes all tissues except the epidermal and vascular tissues, forming the bulk of the plant body, involved in storage, support, and photosynthesis.
What is The Ground Tissue System?
A type of ground tissue cell that is living at maturity, typically isodiametric, with thin primary cell walls, and performs functions like photosynthesis, storage, and secretion.
Key points
- Identify the three types of cells constituting the ground tissue system.
- Describe the structure and function of parenchyma, collenchyma, and sclerenchyma.
- Explain the role of the ground tissue system in different plant organs.
- Differentiate between the ground tissue of primary and secondary growth.
Common exam trap
Confusing the functions of parenchyma, collenchyma, and sclerenchyma.
Definitions
- Term
Parenchyma
- Meaning
A type of ground tissue cell that is living at maturity, typically isodiametric, with thin primary cell walls, and performs functions like photosynthesis, storage, and secretion.
- Term
Collenchyma
- Meaning
A type of ground tissue cell that provides mechanical support to growing plant parts, characterized by unevenly thickened primary cell walls, especially at the corners, and is living at maturity.
- Term
Sclerenchyma
- Meaning
A type of ground tissue cell that provides rigid mechanical support and strength to mature plant parts, characterized by thick, lignified secondary cell walls, and is typically dead at maturity.
- Term
Cortex
- Meaning
The region of ground tissue located between the epidermis and the vascular tissue in stems and roots.
- Term
Pith
- Meaning
The central region of ground tissue within the stele of stems and roots, often involved in storage.
Learning objectives
Identify the three types of cells constituting the ground tissue system.
Describe the structure and function of parenchyma, collenchyma, and sclerenchyma.
Explain the role of the ground tissue system in different plant organs.
Differentiate between the ground tissue of primary and secondary growth.
Prerequisites
Basic plant anatomy
Cell structure and types
Plant morphology
Common mistakes
Confusing the functions of parenchyma, collenchyma, and sclerenchyma.
Not differentiating between primary and secondary plant body tissues.
Overlooking the role of ground tissue in storage and photosynthesis.
Incorrectly identifying ground tissue components in diagrams.
Keywords
Ground tissue system
Parenchyma
Collenchyma
Sclerenchyma
Cortex
Pith
Mesophyll
Plant anatomy
Mechanical support
Storage
Photosynthesis
Practice preview
The primary function of parenchyma cells in the ground tissue system is:…
easy
Which type of ground tissue cells are typically living at maturity, possess thin primary cell walls, and are capable of photosynthesis and storage?…
medium
Which of the following statements accurately describes the role of ground tissue in a plant's life cycle?…
hard