In which specific plant structures would you LEAST expect to find collenchyma tissue?
Beneath the epidermis of young stems
In the petioles of leaves
Supporting the veins of leaves
Mature vascular bundles of woody stems
Related Questions
Where is collenchyma tissue typically found in a plant?
Beneath the epidermis in young stems and petioles
In the center of the stem
In the root cortex
In mature, woody stems
Collenchyma is living mechanical tissue select the incorrect about it
Has cell wall thickening
Lacks protoplasm at maturity
Provides mechanical support
Generally lacks intercellular spaces
Collenchyma tissue is primarily involved in providing what to plants?
Flexible support
Storage of food
Transport of water
Photosynthesis
Which of the above following are simple tissues?
I. Parenchyma, II. Collenchyma, III. Sclerenchyma
I and II
II and III
I and III
I, II and III
What type of thickening is characteristic of collenchyma cell walls?
Uneven thickening, especially at the corners
Uniform thickening all around the cell
Thickening with lignin deposits
No thickening at all
The flexibility of collenchyma tissue is primarily attributed to:
The presence of lignin in the cell wall
The thin cell walls
The combination of pectin and hemicellulose in the cell wall
The intercellular spaces present between the cells
A scientist is studying a newly discovered plant species. Microscopic analysis of the stem reveals living cells with unevenly thickened cell walls, primarily composed of pectin and hemicellulose, providing flexible support. These cells lack lignin and are found in patches beneath the epidermis. Which tissue type is being observed?
Collenchyma
Sclerenchyma
Parenchyma
Xylem
Collenchyma is
Living and contains protoplasm
Dead and hollow
Dead and filled with reserve food
Living and contains no reserve food
The primary function of collenchyma in plants is to:
Provide flexible support to growing parts
Transport water and nutrients
Store food reserves
Protect against pathogens
A mutation in a plant prevents the proper synthesis of pectin. Which tissue would be MOST directly affected by this mutation and what would be the primary consequence?
Sclerenchyma; decreased rigidity in mature tissues
Parenchyma; reduced storage capacity
Collenchyma; reduced flexible support in growing regions
Xylem; impaired water transport
