Question

Name three different glands associated with the digestive system in humans. Also name their secretions.

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Answer 1

Answer:

Digestive glands: These are also considered to be exocrine glands which have ducts to drop their secretions into the target organ directly. The secretions of the digestive glands help in the process of digestion. These glands include salivary glands, gastric glands, intestinal glands, liver and pancreas.

a) Salivary glands secrete saliva along with enzymes.Ptyalin is the strach hydrolysing enzyme secreted by salivary glands in human beings. It is also called as salivary amylase. Ptyalin secreted in the mouth brings about digestion of starch in the mouth itself. It hydrolyses starch into disaccharaides like maltose and isomaltose and other small dextrins called as limit dextrins. Ptyalin hydrolyses at about 30 percent of the starch in the mout itself.

b) Gastric glands secrete HCL, pepsinogen, mucous.Gastric juice is a secretion of gastric glands located in the lining of the stomach. It is mainly made up of electrolytes, mucus, enzymes, hydrochloric acid, intrinsic factor etc. HCl secreted by parietal cells provides acidic medium for many enzymes to get activated. Neck cells secrete mucus which lubricated the passage of the food. Chief cells secrete pepsinogen which helps in the digestion of proteins after getting activated into pepsin by HCl. Enzymes of the gastric juice bring about digestion of different components of the food. Gastric lipase helps in emulsification of lipids in the stomach. Partially digested food in the stomach is called as chyme and this passes on into small intestine

c) Intestinal glands are present in the inner lining of small intestine. These secrete various enzymes which aid in the process of digestion of all the components of food. Maltase, sucrase and lactase bring about digestion of carbohydrates. Peptidases help in digestion of proteins. Enterokinase helps in the activation of other enzymes

Answer 2

Answer:

• Salivary gland :- It secretes saliva that contain enzyme, ptylain.
• Pancreas :- It secretes pancreatic juice which contain trypsin, please and amylase.
• Liver :- It secretes Bile juice.
• Gastric gland :- It secretes gastric juice, HCl ( Hydrochloric acid), mucus and pepsin.
• Intestinal glands :- It secretes Intestinal juice.

Extra Information :-

HCl makes the medium acidic.

Pepsin it is a protein synthesis.

Mucus it protects the inner lining of stomach from the reaction of HCl.

Protein ⇒ Amino Acid

Carbohydrates ⇒ Glucose

Fats ⇒ Fatty acids and Glycerol