NEET PG DENTAL EXAM

HISTOLOGY

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Food being broken down by enzymes found in saliva is an example of
A
chemical digestion
B
physical digestion
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Chemical digestion in the mouth is minor but consists of salivary amylase (ptyalin, or alpha-amylase) and lingual lipase, both contained in the saliva. Salivary amylase is chemically identical to pancreatic amylase and digests starch into maltose and maltotriose, working at a pH optimum of 6.7 to 7.0.

Detailed explanation-2: -Saliva contains special enzymes that help digest the starches in your food. An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.

Detailed explanation-3: -Amylase, maltase, sucrase, lactase, etc. convert carbohydrates into monosaccharides and disaccharides in the small intestine. Fats are converted to fatty acids and glycerol by lipases in the small intestine.

Detailed explanation-4: -The chemical reaction that’s central to chemical digestion is called hydrolysis. It’s the process of incorporating water molecules into larger molecular structures. This breaks them down into smaller parts and makes it much easier for your cells to absorb the nutrients in your food.

There is 1 question to complete.