Pepsin and its Funciont as a Gastric Gland Cell

Pepsin and its Funciont as a Gastric Gland Cell

Length: 362 words (1 double-spaced pages)

Rating: Excellent

Open Document

Essay Preview

More ↓
A gastric gland is a tubular structure in the vertebrate stomach that

secretes gastric juices. The gastric glands have three types of cells that secrete

different components of the gastric juice. One of them is being a chief cell, which

is a rust color and is an inactive form of the digestive enzyme Pepsin. Pepsin

begins the digestion of proteins in food. Pepsin is a Peptidases, which is an

enzyme that breaks peptide bonds of proteins.

     Pepsin is found in the mucosal lining of the stomach that breaks down

the protein in the food we eat. A protein is an organic compound that consists of

aminio acids joined by peptide bonds. Pepsin is one of three principal protein-

degrading enzymes in the digestive system the other two being chymotrypsin

which catalyzes the hydrolysis of peptide bonds and trypsin that acts with the

other proteins to break down dietary protein molecules to their peptides and

amino acids which will be absorbed by the intestinal lining. Pepsin is synthesized

in an inactive form in the stomach lining; it is necessary to convert the inactive

enzyme and to maintain the optimum acidity (pH 1–3) for pepsin function.

     Secreting pepsin in the inactive form of pepsinogen helps to protect the

cells of the gastric glands, and mucus helps protect the stomach lining from both

pepsin and acid. Pepsinogen and HCl are secreted into the interior of the gastric

gland. Then HCl converts pepsinogen into pepsin. Then pepsin activates more

pepsinogen starting a chain reaction. Pepsin begins chemical digestion of

proteins. It splits the polypeptide chains of proteins Into smaller polypeptides.

Polypeptide chains are chains of amino acids linked by peptide bonds. This

primes the proteins for digestion in the small intestine.

How to Cite this Page

MLA Citation:
"Pepsin and its Funciont as a Gastric Gland Cell." 26 Jan 2020

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Human Gastric Adenocarcinoma Cell Line Essay

- Introduction There are many different cell lines that have been used in order to examine genotoxicity exposure of agents such as human gastric adenocarcinoma cell line - TMK1, human colon cancer - COL2, particularly human B lymphoblastoid cell line - TK6 is more often used. TK6 is a cell line heterozygous at the thymidine kinase locus from a patient with chronic myelogenous leukemia (CML) in T cell lineage blast crisis which included Philadelphia chromosome t(9;22)(q34;q11), an abnormality in chromosome 6 (a deletion of the long arm), and chromosome 7, for example, del(6)(q21); ins(1;-)(q21;-); del(1)(q21;q32); dic(7)(:p13 cen q32:11.2 cen pter) (Watanabe et al., 1995; Tomita et al., 199...   [tags: Chemistry, Cell]

Research Papers
1632 words (4.7 pages)

Salivary Gland Tumors and Cell Phones Essays

- A wireless phone is a two way radio, it has a transmitter and a receiver. When a person makes a call then the voice sound is converted to the nearest base station. cell phones have a type of wave called radio waves which carries the information and travels through the air at the speed of light. The waves can be absorbed or reflected by the surrounding objects before it is reached to their nearest base station. The cell phone uses in the past ten years has increased at a really high rate. At the time of 1988 there were approximately 500.000 cell phones established in the USA....   [tags: radiation, damaged DNA]

Research Papers
1925 words (5.5 pages)

Essay on The Suprarenal Gland

- The suprarenal gland (adrenal gland) is located at the top of each kidney; therefore each person has two adrenal glands. Adrenal glands appear to look like triangular shaped objects on top of the kidneys. The adrenal glands are dire in creating different hormones that are necessary for a fully functional body. With each adrenal gland, they are both made up of two different sections. The first section being the adrenal cortex, and that is located on the outer region of the adrenal gland; the second section called the adrenal medulla, and that is located in the inner region of the adrenal gland....   [tags: adrenal cortex, adrenal gland, cortisol]

Research Papers
1000 words (2.9 pages)

Anterior Pituitary Gland, Pituitary Hormones And How They Affect Target Tissues

- The Anterior Pituitary Gland, Pituitary Hormones, and How They Affect Target Tissues Bethany Newbern Lanier Technical College   Abstract The pituitary gland, called the master gland because of its regulatory capacity on other glands, affects much of the body. This paper focuses on the anterior portion of the pituitary gland and its target tissues. The anterior pituitary has six major hormones which play a significant part in controlling the body through endocrine secretions. By looking at the various disorders that result from either hyperfunction or hypofunction of the anterior pituitary gland, the affects of the hormones it controls are clearly seen....   [tags: Hypothalamus, Growth hormone, Pituitary gland]

Research Papers
1225 words (3.5 pages)

Diseases Of The Pituitary Gland Essay

- Diseases Of The Pituitary Gland The pituitary gland is a tiny organ the size of a pea located at the base of the brain. Despite its size, it is generally regarded as the master gland of the body, because it produces many hormones that travel throughout the body, as it directs certain processes and/or stimulates other hormones producing glands as well. The pituitary gland also stores many different hormones such as; Prolactin, which stimulates breast milk production after childbirth, and it affects hormone levels in the ovaries in women and in the testes in men, as well as intervening in fertility, Growth...   [tags: Hypothalamus, Growth hormone, Anterior pituitary]

Research Papers
1831 words (5.2 pages)

Thyrod Hormone and Gland Essay

- Thyroid hormones are Tyrosine based hormones that require triidothyronine (T3) and Thyroxine (T4). These hormones are produced by the thyroid gland. The Thyroid gland is primarily known for the regulation of metabolism, as well as proper production of T3 and T4. Iodine is the main component that is needed. Dysfunction of Iodine can lead to decreased production of T3 and T4, resulting in enlarged thyroid tissue and even lead to thyroid diseases. In order for the thyroid hormone to function adequate amount of Thyroxine (T4) should be found within the blood....   [tags: Iodine, Metabolism]

Research Papers
850 words (2.4 pages)

Gastric Cancer and Gender, Age and Race Essay example

- ... ("Stomach Cancer," 2014) In addition to detection and treatment difficulties, finances can pose a major dilemma to the improvement of the sick patient as well. As Alanna Kennedy, a writer for the American Association for Cancer Research, stated concerning the cost of cancer care, "A diagnosis of cancer is never easy, but it can be even more stressful when you’re struggling to pay for costly treatments and medications. For some patients, the financial burden is apparent at diagnosis, while for others, it builds up over the course of years of treatment" (2011)....   [tags: deadly diseases]

Research Papers
21774 words (62.2 pages)

Salivary Gland Tumors Essays

- INTRODUCTION Minor salivary gland tumors constitute a heterogeneous group of neoplasms with great histomorphologic variation1 accounting for 11% of all the salivary gland tumours.2 The ratio of benign and malignant tumours in case of minor salivary gland tumours is closer to 1:1 revealing their aggressive biological behaviour.3 Highly cellular variants accounting for 12-15% of the pleomorphic adenomas4 are more likely to undergo malignant change, with 50% of carcinomas developing in cell-rich variants of pleomorphic adenomas.2 We present here a case report of a longstanding palatal cellular pleomorphic adenoma in a 53 year old male patient which gave misleading results following FNAC....   [tags: Medical Research ]

Research Papers
1460 words (4.2 pages)

Salivary Gland Tumors Essays

- INTRODUCTION: Salivary gland tumors are a morphologically diverse group of neoplasms, which may present considerable diagnostic and management challenges for the pathologist and surgeon. Salivary gland tumors are rare with an overall incidence in the western world of about 2.5 to 3.0 per 100,000 per year. About 80% of all lesions are benign; hence salivary malignancies are particularly rare, comprising less than 0.5% of all malignancies and about 5% of cancers in the head and neck. (1) Most of the studies on salivary gland tumors are in reference to western population and to the best of our knowledge this study is the first of its kind in Indian population....   [tags: Medical Science]

Research Papers
2554 words (7.3 pages)

Melatonin And The Pineal Gland Essays

- Melatonin And The Pineal Gland Set deep in our brains is a tiny gland called the pineal gland. This tiny gland is in charge of the endocrine system, the glandular system that controls most of our bodily functions. The pineal runs our Œbody clocks', and it produces melatonin; the hormone that may prove to be the biggest medical discovery since penicilin, and the key to controlling the aging process. The pineal gland controls such functions as our sleeping cycle and the change of body temperature that we undergo with the changing seasons....   [tags: essays research papers fc]

Free Essays
2138 words (6.1 pages)

Related Searches

Pepsin is most active at

pH2-4. It is permanently inactivated above pH 6.

Substrate- Protein

Pepsin is a protease that begins digestion of proteins, breaking them into peptides and amino acids. Pepsinogen, is secreted by gastric glands of the stomach into the stomach. There, in the acid environment of the stomach, pepsinogen is converted into pepsin.

Products- Peptides and Amino Acids.

Observations have been made that dissolving the substrate eggs whites which is a protein
Return to