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
Related Questions
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
I. These tissue are found as layers or patches
II. It consists of cells which are thickened at the corners
III. It often contains chloroplast
IV. Intercellular spaces are absent
V. They provide mechanical support to growing parts of plants
The above characters are attributed to
Vascular tissue
Collenchyma
Parenchyma
Simple sclerenchyma
Which statement BEST describes the relationship between collenchyma and sclerenchyma?
Both are composed of living cells at maturity.
Both have evenly thickened cell walls.
Both contain lignin in their cell walls.
Both provide structural support, but collenchyma provides flexible support in growing regions while sclerenchyma provides rigid support in mature regions.
