Introduction:
Lipids are hydrophobic in nature, so digestion and absorption of lipid is a more complicated process when compared to protein and carbohydrate digestion. Lingual lipase in the mouth secreted by intrinsic salivary glands digests small quantity of fat. This enzyme moistens the mouth even if we do not eat anything. Emulsification droplets, micelles, and chylomicrons are involved in lipid digestion.

Answer to Problem 1TYR
Correct answer:
Lingual lipase is an enzyme that begins the digestion of fat in the mouth; this is more active in the stomach because of the acidic pH. Therefore, option b is correct.
Explanation of Solution
Justify the reasons for the correct statement:
Lingual lipase is secreted by lingual serous glands that is collected in the stomach between and after every meal.
Option (b) is given as, “lingual lipase”.
Lingual lipase is one of the acidic enzymes involved in the digestion of fat.
Hence, option (b) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as, “chymotrypsin”.
Chymotrypsin is secreted by the pancreas that digest proteins. Hence, it is a wrong answer.
Option (c) is given as, “carboxypeptidase”.
Carboxypeptidases are pancreatic secretions that are involved in protein digestion; it removes amino acid from the –COOH end. Hence, it is a wrong answer.
Option (d) is given as, “enteropeptidase”.
The trypsinogen (pancreatic zymogen) is converted to trypsin by enteropeptidase. Hence, it is a wrong answer.
Option (e) is given as, “dextrinase”.
Dextrinase enzyme in the small intestine is involved in digestion of starch, converting it into glucose. Hence, it is a wrong answer.
Hence, options (a), (c), (d), and (e) are incorrect.
Lingual lipase secreted by lingual serous glands is more active in the stomach.
Want to see more full solutions like this?
Chapter 25 Solutions
ANATOMY PHYSIOLOGY CUSTOM COMBO
- 22. Which of the following mutant proteins is expected to have a dominant negative effect when over- expressed in normal cells? a. mutant PI3-kinase that lacks the SH2 domain but retains the kinase function b. mutant Grb2 protein that cannot bind to RTK c. mutant RTK that lacks the extracellular domain d. mutant PDK that has the PH domain but lost the kinase function e. all of the abovearrow_forwardWhat is the label ?arrow_forwardCan you described the image? Can you explain the question as well their answer and how to get to an answer to an problem like this?arrow_forward
- Describe the principle of homeostasis.arrow_forwardExplain how the hormones of the glands listed below travel around the body to target organs and tissues : Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forwardWhat are the functions of the hormones produced in the glands listed below: Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningMedical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning


