Stratified Squamous Epithelium Features Label the features of stratified squamous epithelium
Label the organelles using their descriptions on the left.
The Correct Answer and Explanation is :
Stratified Squamous Epithelium Features:
Stratified squamous epithelium is a type of epithelial tissue that consists of several layers of cells. This tissue is designed to protect underlying tissues from abrasion and can be found in areas that are subject to mechanical stress. Key features include:
- Basal Layer: The deepest layer of the epithelium, consisting of cuboidal or columnar cells that are actively dividing. This layer is responsible for the regeneration of the epithelium.
- Intermediate Layers: Cells in these layers begin to flatten as they move upward, becoming more squamous in shape. These layers are made up of cells that are in the process of differentiating and dying.
- Surface Layer: The outermost layer contains dead, flattened cells that are constantly sloughed off. These cells are filled with keratin, a protein that provides protection against dehydration and abrasion.
- Keratinization: In areas such as the skin, the surface layer is keratinized, meaning it is covered with a tough protein, keratin, to prevent water loss.
- Non-Keratinized Stratified Squamous Epithelium: Found in moist areas like the oral cavity, esophagus, and vagina, where the surface layer is not keratinized but still provides protection against mechanical stress.
Organelles:
- Nucleus: Contains the cell’s genetic material (DNA) and controls cellular activities like growth and reproduction.
- Mitochondria: The powerhouse of the cell, responsible for producing ATP through cellular respiration.
- Endoplasmic Reticulum (ER): The rough ER has ribosomes and is involved in protein synthesis, while the smooth ER synthesizes lipids and detoxifies substances.
- Golgi Apparatus: Processes and packages proteins and lipids for delivery within or outside the cell.
- Lysosomes: Contain digestive enzymes to break down waste materials and cellular debris.
These organelles work together to maintain the cell’s structure, function, and homeostasis.