Question

Large intestine in man mainly carries out
A. Absorption
B. Assimilation
C. Digestion of fats
D. Digestion of carbohydrates

Answer 1

The large intestine, also known as the large intestine, is the last vertebrate component of the gastrointestinal tract and of the digestive system.

Complete Answer:
- The large intestine, the posterior portion of the intestine, usually consists of four regions: the cecum, the colon, the rectum, and the anus. To refer to the whole large intestine, the term colon is often used.
- The large intestine has a smooth inner wall and is larger and shorter than the small intestine. Enzymes from the small intestine complete the digestive process in the proximal or upper half of the large intestine, and bacteria make B vitamins (B12, thiamin, and riboflavin) as well as vitamin K.
- However, the primary function of the large intestine is the absorption from intestinal residues of water and electrolytes (a process that typically takes 24 to 30 hours) and the preservation of faecal matter until it can be expelled.
- The large intestine's churning motions gradually expose the absorbing walls to digestive residue. The substance is driven toward the anus by a progressive and more intense form of movement known as the gastrocolic reflex, which happens just two to three times daily.
- The physiological microflora, which is abundant in anaerobic bacteria (approx. 1011 / g) living in symbiosis with the human body, houses the large intestine. They perform important functions such as the decomposition of indigestible food ingredients (e.g. cellulose), vitamin K production, intestinal peristalsis promotion, and immune system support.

The correct answer is option(A) Absorption.

Note: Inflammation, such as colitis; diverticulosis; and irregular growths, such as benign or malignant tumours, are common diseases of the large intestine.