Intestine absorbs the digested food materials. What type of epithelial cells are responsible for that?
Intestine absorbs the digested food materials. What type of epithelial cells are responsible for that?
The correct option is B Columnar epithelium
The correct option is B.
Explanation of the correct option: -
- The alimentary canal is lined by a single layer of tall and wide cells that aid in the secretion of digestive enzymes, mucus, and gastric acid in the stomach.
- The mucosa is the innermost layer of the alimentary canal lumen.
- The mucosa of the small intestine forms villi, which are tiny folds. Columnar epithelial cells line the villi, which form countless microscopic projections termed microvilli.
- They enhance the amount of surface area available for processed meal absorption.
- The mucosa is the fourth and innermost layer of the alimentary canal. Gastric rugae are uneven folds in the mucosa of the stomach.
- The small intestine mucosa contains multiple small folds called villi, which include microvilli made of columnar epithelium, increasing the absorption surface area.
Explanation of the incorrect options: -
Option A: - This form of epithelium usually serves as a barrier to germs penetrating underlying tissue and/or to water loss. The epidermis (the outer (layer of our skin) is made up of stratified squamous epithelial cells.
Option C: -Spindle fibers are a type of protein that divides a cell's genetic material. During both types of nuclear division, mitosis and meiosis, the spindle is required to evenly divide the chromosomes in a mother cell into two daughter cells. The spindle fibers are referred to as the mitotic spindle during mitosis.
Option D: - Absorption, secretion, and protection are among the functions of simple cuboidal epithelium. Kidney tubules, bronchioles in the lungs, ducts in secretory glands like the pancreas, thyroid, and salivary glands, and the ovaries and testes also include this tissue.
Final Answer: - Intestine absorbs the digested food materials. Columnar Epithelium cells are responsible for that.
Columnar epithelium
The correct option is B.
Explanation of the correct option: -
- The alimentary canal is lined by a single layer of tall and wide cells that aid in the secretion of digestive enzymes, mucus, and gastric acid in the stomach.
- The mucosa is the innermost layer of the alimentary canal lumen.
- The mucosa of the small intestine forms villi, which are tiny folds. Columnar epithelial cells line the villi, which form countless microscopic projections termed microvilli.
- They enhance the amount of surface area available for processed meal absorption.
- The mucosa is the fourth and innermost layer of the alimentary canal. Gastric rugae are uneven folds in the mucosa of the stomach.
- The small intestine mucosa contains multiple small folds called villi, which include microvilli made of columnar epithelium, increasing the absorption surface area.
Explanation of the incorrect options: -
Option A: - This form of epithelium usually serves as a barrier to germs penetrating underlying tissue and/or to water loss. The epidermis (the outer (layer of our skin) is made up of stratified squamous epithelial cells.
Option C: -Spindle fibers are a type of protein that divides a cell's genetic material. During both types of nuclear division, mitosis and meiosis, the spindle is required to evenly divide the chromosomes in a mother cell into two daughter cells. The spindle fibers are referred to as the mitotic spindle during mitosis.
Option D: - Absorption, secretion, and protection are among the functions of simple cuboidal epithelium. Kidney tubules, bronchioles in the lungs, ducts in secretory glands like the pancreas, thyroid, and salivary glands, and the ovaries and testes also include this tissue.
Final Answer: - Intestine absorbs the digested food materials. Columnar Epithelium cells are responsible for that.
