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What is the role of mucus in human digestive system Class 10

12. What is the role of following in human digestive ..

Best answer (i) Help in mixing the food thoroughly with more digestive juice by peristalsis. (ii) Creates an acidic medium which facilitates the action of the enzyme pepsin. (iii) Protects the inner lining of the stomach from the action of the acid The role of HCl is. Hydrochloric acid is an essential acid in the stomach. It helps destroy bacteria, as well as other harmful species. It also works as a preservative of food. HCl converts pepsinogen which is not active into pepsin to metabolize proteins in our stomach. HCl also acts as another stomach cover apart from mucus, to avoid the.

Digestive system in human beings consists of alimentary canal and digestive glands. Alimentary canal is made up of mouth, buccal cavity, pharynx, oesophagus, stomach, intestine, rectum and anus. The digestive glands are the salivary glands, the gastric glands, the liver, the pancreas and the intestinal glands The digestive system of the human body is the sum of the gastrointestinal tract (GIT; also called alimentary canal) and accessory organs (tongue, liver, pancreas, etc.). These two parts together help in the digestion process. The alimentary canal is the long tube through which the food that we eat is passed Life Processes Class 10 Important Questions Long Answer Type. Question 1. (a) Draw a diagram depicting human alimentary canal and label on it gall bladder, liver and pancreas. (b) State the roles of liver and pancreas. (i) Absorption of digested food. (ii) Absorption of water Villi are very tiny, tentacle-like structure present in the inner surface of the small intestine. They are covered by a brush-like structure calle microvilli. Digestion occurns in the stomach and the large intestine. Further, some enzymatic secretion takes placed in the villi which completely breaks down the carbohydrates , proteins, and lipids.

Rajasthan Board RBSE Class 10 Science Notes Chapter 2 Human System. The human body is a complex and highly efficient organization of organs and organ systems. A cell is the smallest structural and functional unit of life. Many cells come together in a group to make tissue. A particular tissue is responsible for a particular task Mucous membranes can contain or secrete mucus, which is a thick fluid that protects the inside of the body from dirt and pathogens such as viruses and bacteria. Many different mucous membranes exist, such as mucous membranes in the respiratory system, digestive system, and reproductive system. Difference Between the Words Mucous and Mucus It serves as a link between the food pipe and the small intestine thus receiving the food from the food pipe and carrying it to the small intestine. The lining of this part of the digestive system function in secreting mucus, hydrochloric acid, and digestive juices. The pH of this part is acidic in nature Human Digestive System: In this article, we will provide you with all the necessary information regarding the Human Digestive System that is human digestive system parts and functions, digestive system process, how does the digestive system work, etc., Knowing the Human Digestive system helps you to understand the functions of your digestive system which in turn helps you to build a strong.

Hydrochloric Acid provides acidic medium for the digestion of proteins by enzyme pepsin. mucus helps to protect the inner lining of stomach from the acid. The movements of the wall of stomach churn the food and help in mixing the gastric juice in food The main function of these enzymes is to split the carbohydrates by the hydrolytic actions. The function of these enzymes are as follows: Salivary amylases - 30% of starch molecules are converted into maltose by salivary amylases at the pH of 6.8. Lysozymes - It acts against bacterial infections. They are also called antibacterial agents The mucus and the bicarbonates of the gastric juice help in protecting the mucosal epithelium from the highly acidic HCl. Mucus also helps in lubricating the food. The different chemical reactions that take place in the stomach are summarised as follows. Gastric juices and enzymes

The various organs of the human digestive system in sequence are : Mouth (Buccal cavity), Oesophagus (or Food pipe), Stomach, Small intestine, Large intestine, Rectum and Anus. The glands which are associated with human digestive system and form a part of human digestive system are: Salivary glands, Liver and Pancreas The Human Digestive System The stomach has folds called and is a big muscular pouch which turns the bolus and mixes it with gastric juice, a mixture of stomach acid, mucus and enzymes. 23. The Human Digestive System The acid kills off any invading bacteria or viruses. The enzymes help break down proteins and lipids. The mucus protects the. Question 10. State the function of digestive enzymes. (CBSE A.I. 2008 C) Answer: Digestive enzymes are hydrolytic enzymes which cause breakdown of complex and insoluble components of food into simple, soluble and absorbable substances. Question 11. Name the two ways in which glucose is oxidised to provide energy in various organisms. (CBSE A.I.

Human Digestive System - Parts, Process, and Function. The digestive system of the human body is a set of organs that work together to convert the body into energy. Physiologically, the digestive system is formed along with the gastrointestinal tract, along with the liver, pancreas, and gallbladder NCERT Solutions for Class 10 Science Nutrition in Human Beings. Class 10 Science: In this article, we will provide a brief description of nutrition in HUMAN BEINGS from 10th Class Science.. The various organs of the human digestive system in the sequence are Mouth, Oesophagus (Food pipe), Stomach, Small intestine, and Large intestine Digestive enzymes and mucus are secreted by it. These secretions are slightly alkaline with pH in the range of 7.5 to 8.0. They contain several types of cells that secrete mucus and a large number of enzymes. The secretion of these glands is termed as succus entericus or intestinal juice

What Is Mucus? Purpose, Causes, and Treatmen

What is the role of HCl , pepsin and mucus in the human

The Digestive System Esophagus Stomach Small Intestine Large Intestine Liver Gall Bladder Pancreas In the Mouth Digestion actually begins in the mouth. The teeth break the food into smaller pieces, and the tongue moves the pieces around so that saliva can be mixed with them. This begins the digestion. Then swallow, and the journey begins Hey User!!!! Here is ur answer⤵⤵ These 3 are one of the most important components of digestive system. 1) Digestive enzymes :- Every part of the digestive system has it's own digestive enzyme which is use to digest food or break it down into simplest form Saliva is a mixture of water, mucus, antibacterial substances, and digestive enzymes. One of the most recognizable digestive enzymes in human saliva is amylase. This enzyme is able to break down the starch in our food to simpler and more easily digestible sugars like glucose and maltose A. The main role of the large intestine is to churn food around with enzymes. B. The main role of the large intestine is to break down solid food. C. The main role of the large intestine is to absorb water. D. The main role of the large intestine is to mash and cut foods. 7

4. Draw a diagram of human excretory system and label kidneys, ureters on it. Answer. 5.Name the acid presents in the following: (i) Tomato (ii) Vinegar (iii) Tamarind Answer. (i) Oxalic acid (ii) citric acid (iii) Tartaric acid. 6.State the role of the following in human digestive system : (i) Digestive enzymes (ii) Hydrochloric acid (iii. Class 10 Science Life Processes Short Answer Type II. Q. Name three different glands associated with the digestive system in humans. Also name their secretions. Answer - Three glands associated with the digestive system are as follows: 1. Salivary glands in the mouth produce saliva Digital Teacher Smart Class - Trusted by 7500+ SchoolsDigital Teacher Canvas - Learn @Home, Anytime, Anywhere and Any Device https://bit.ly/3i2bvn5-----.. The digestive system is uniquely designed to do its job, which is to turn the food into energy and nutrients that are essential for survival. Once the body absorbs the essential substances, it packages the solid waste for disposal through the bowel movement. Many organs work in complete harmony to let the digestive system function

(a) The various organs of the human digestive system are mouth, oesophagus, stomach, small intestine and large intestine. The glands associated with the human digestive system are salivary glands, liver and pancreas. (b) (i) Carbohydrates - The digestion of carbohydrates begins in the mouth Which is the last class of food to be acted on in the digestive system? > fats and oils . There are at least 3 ring-shaped muscles (sphincters) along the gut. Do not get these confused with the layer of circular muscle - all along the gut - which has a role in moving food along Describe the digestive system. Answer: The different parts of the digestive system are as follows: Buccal cavity opens outside through the mouth. It has the tongue, teeth and the opening of the salivary gland. Buccal cavity leads to oesophagus. The oesophagus opens into the stomach. The wall of the stomach contains gastric glands

Fact check: Body creates mucus to digest all foods, create

  1. Bile juice is stored in the gall bladder and has a significant role in the digestion of fats. Pancreas has enzymes that help in total digestion of all food components. • The digestive tract and associated glands together constitute the digestive system
  2. Human Body Series. Digestive System. Quiz Answer Key. Your digestive system works on the foods you eat for about: a.5 hours b.10 hours c.15 hours d.20 hours The digestive system breaks down food into: a.nutrients b.amylase c.saliva d.sphincters During the process of absorption, nutrients from food go from: a.the intestines into the bladde
  3. Digestive organs, juices and substances aid in human digestive system. Food digestion process and the reaction occur in each organs of human digestive system. 1. Teacher give explaination about organs, digestive juices and substances that aid in human digestive system by using Lecture Maker presentation. 2
  4. Name the substances on which the following enzymes act in the human digestive system: asked Jun 28, 2018 in Class X Science by priya12 ( -12,193 points) Categorie
  5. U.S. National Library of Medicine 8600 Rockville Pike, Bethesda, MD 20894 U.S. Department of Health and Human Services National Institutes of Health Page last updated on 7 May 201

List the role of each of the following in our digestive

  1. Name the organs of excretory system in human. Show them with the help of a labelled diagrams. Answer: Excretion in Human Beings: The main function of human excretory system is to re move nitrogenous wastes such as urea from the body. It includes a pair of kidneys, a pair of ureters, a urinary bladdes and a urethra
  2. Q53(CBSE 2011): State the role and function of lymph in the human transport system. Answer: Lymph (like blood) is a circulatory fluid. It flows through the lymph vessels. Lymph (also called tissue fluid) is colourless. It consists of lymphocytes which kill germs and protect the human body from infections
  3. g a slippery coat over the bolus. ADVERTISEMENTS: 2. Solvent action: Taste is a chemical sense

Peristalsis function. Peristalsis is a phenomenon that brings about the movement of food and liquid particles through muscle contractions to multiple organs of the digestive system. These organs are the esophagus, stomach and the large and small intestines. Oesophagus: Peristalsis pushes the food down the esophagus and into the stomach 1. For acidifying stomach content. Hydrochloric acid is the main component of the gastric juices produced in the stomach and it maintains the stomach pH of 1 to 2 by acidifying the stomach contents. 2. Prevents Infections. Hydrochloric acid acts as a barrier against foreign microorganisms and helps prevent infection. 3. Helps in digestion of food c. mucus d. bile ____ 20. About how much of a human's body weight is made up of water? a. 10 percent b. 25 percent c. 65 percent d. 90 percent ____ 21. In what part of the body does most chemical digestion take place? a. large intestine b. liver c. pancreas d. small intestine ____ 22. In what part of the body are most of the nutrients.

What is role of HCl acid in our stomach? - Chemistry Q&

Nutrition in Animals NCERT - Question : Read the following passage carefully and answer the questions that follow it. Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there Gastric juice is a mixture of secretions of the different types of glands found in the stomach. As a whole gastric juice is acid in reaction, but when collected separately, it is found that, the body and fundus secrete an acid juice, while the pyloric part secretes an alkaline juice. During fasting stomach secretes at a variable rate of 10. Check out our Patreon page: https://www.patreon.com/tededView full lesson: https://ed.ted.com/lessons/how-your-digestive-system-works-emma-bryceAcross the pl.. The human digestive system. It takes around 24 hours for your dinner to wind its way through the nine-metre-long digestive tract. On its trip, it's mixed with acids and digestive juices, and squeezed and squelched until all the nutrients that the body needs are absorbed. Then, the smelly leftovers, along with billions of dead bacteria, are.

The digestive system works to break down food. If part of the system is not working properly, a person may develop a digestive disorder, such as irritable bowel syndrome (IBS), celiac disease, or. oh hi I hope you don't mind that I'm eating this is actually just my first course for my birthday the writers wrote me a script where I just get to eat the whole time and I can't think of a better way to demonstrate the workings of the digestive system the series of hollow organs that we use to break down and process nutrients and energy we need to function though wait a second if I remember. The function of enzymes in the human digestive system is to digest the complex food substances like starch, proteins and fats into simple molecules The human digestive system consists of a number of organs, each performing a different function. In the digestive system, food first enters the buccal cavity. The buccal cavity consists of teeth and the tongue. Apart from the tongue and the teeth, the buccal cavity also has salivary glands, which secrete saliva

Mucus, viscous fluid that moistens, lubricates, and protects many of the passages of the digestive and respiratory tracts in the body.Mucus is composed of water, epithelial (surface) cells, dead leukocytes, mucin, and inorganic salts. Mucus is produced by mucous cells, which are frequently clustered into small glands located on the mucous membrane that lines virtually the entire digestive tract Digestive enzymes are released, or secreted, by the organs of the digestive system. These enzymes include proteases that digest proteins, and nucleases that digest nucleic acids. Examples of digestive enzymes are: Amylase, produced in the mouth. It helps break down large starch molecules into smaller sugar molecules digestive system. The digestive system helps the body digest food. Bacteria in the GI tract, also called gut lora or microbiome, help with digestion. Parts of the nervous and circulatory systems also play roles in the digestive process. Together, a combination of nerves, hormones, bacteria, blood, and the organs of the digestive system

Anus. The anus is a 2-inch long canal and the last part of the digestive tract.The anus has the pelvic floor muscles and the two anal sphincters. The external sphincter holds the stool until reaching a toilet, where it then relaxes to release the contents.. Disclaimer and reference The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages: the cephalic phase, the gastric phase, and the. Parts of the Digestive System. The vertebrate digestive system is designed to facilitate the transformation of food matter into the nutrient components that sustain organisms. Oral Cavity. The oral cavity, or mouth, is the point of entry of food into the digestive system, illustrated in Figure 8. The food consumed is broken into smaller. Digestive System class 10 Digestive System Worksheet. Fill in the blanks. _____is the largest gland in human body . Answer the following Questions. 1. Give any 3 characteristics of enzyme. 2. Give one function of mouth, lips and tongue. 3. Name different kinds and how many of each teeth we have? 4

Notes On Digestion - CBSE Class 10 Scienc

Robert Burakoff, MD, MPH. on September 08, 2020. Digestive enzymes are substances secreted by the salivary glands and cells lining the stomach, pancreas, and small intestine to aid in the digestion of food. 1 . They do this by splitting the large, complex molecules that make up proteins, carbohydrates, and fats (macronutrients) into smaller. The mucus membrane of the human stomach has 30 million glands which produce gastric juice containing not only acids, but also bicarbonate. 4.The flow of bicarbonate in the stomach amounts from 400 mol per hour (24.4 mg/h) for a basal output to 1,200 mol per hour (73.2 mg/h) for a maximal output What are the three digestive agents in saliva? Which digestive agent loosens tough fibrous material in the stomach? Which part of the digestive system produces mucus to soften food? Which part of the digestive system produces basic solution, enzymes and insulin? Which comes first, the large intestine or the small intestine

Digestive enzymes have many uses beyond just digesting your food. Enzyme technology plays an important role in the diagnosis, treatment, biochemical investigation and monitoring of a number of diseases, but they also have other, every-day uses, such as in laundry detergent. 3. Your Digestive System Is Not The Center Of Digestio Students can download Class 10 Science Chapter 6 Life Processes Important Questions, What is the function of the human digestive system? Gastric glands located on the walls of the stomach produce hydrochloric acid, mucus and digestive enzymes. The mucus produced will protect the inner lining of stomach from corrosion by hydrochloric acid 20. What is the role of following in human digestive system - a) mucous b) Bicarbonate c) Trypsin Ans. a) Mucus - It protects the inner living of stomach from HCl. b) Bricarbonate - It makes the acidic food alkaline so that pancreatic enzymes act on it. c) Trypsin - It digest proteins into amino acids

The mucus cells produce mucus. The major function of the mucus is to protect the lining of the stomach from the damaging effects of the acid and digestive enzyme (pepsin). Some endocrine cells also produce ghrelin. Reservoir function. The stomach serves as a temporary reservoir of food. The duration of stay depends on the type of food Mucus is a normal, slippery and stringy fluid substance produced by many lining tissues in the body. It is essential for body function and acts as a protective and moisturizing layer to keep critical organs from drying out. Mucus also acts as a trap for irritants like dust, smoke, or bacteria

Human Digestive System - Parts Of Digestive Syste

DIGESTIVE SYSTEM. People are probably more aware of their digestive system than of any other system, not least because of its frequent messages. Hunger, thirst, appetite, gas ☺, and the frequency and nature of bowel movements, are all issues affecting daily life Nutrition in human beings. Nutrition in human beings takes place through parts like mouth, stomach, small intestine, large intestine, anus; The process of nutrition takes place through an alimentary canal which is a long tube extending from the mouth to the anus.; Complex foods should be converted to smaller ones by crushing the food with teeth and by the enzyme salivary amylase of saliva. Answer: Pharynx in humans, is the part of digestive system and the conducting zone of respiratory system. Pharynx constitues nasopharynx, oropharynx and laryngopharynx. The role it plays in respiration is that it allows the air passage from nasal chamber to oropharynx via nasopharynx. Question 54

Life Processes Class 10 Important Questions Science

PLAY. Food enters the Oral Cavity through the mouth where the Teeth, Tongue, Salivary Glands, Palate, and Cheeks work together to break up the food and mix it with mucus and digestive enzymes. In the Oral Cavity, the Tongue secretes mucus and enzymes to aid in digestion. The Salivary Glands: Parotid, Sublingual and Submandibular secrete mucus. Respiratory System in humans. 1)Nose:There is a pair of external nostrils at the lower end of nose.The air enters through the nostrils.The air passing through nostrils is filtered by fine hairs that lines the passage.The passage is lined with mucus which help in this process

The regular function of the digestive system is an important checkpoint for astronauts to conduct missions. Simulated microgravity can recreate the changes experienced by the human body in a weightless environment in space to a certain extent, providing technical support for the exploration of its mechanism and a practical method for other. Causes of Mucus in Stool. Different digestive problems can make more mucus show up in your stool. Some are serious and long-lasting. Others can clear up quickly. Problems that can cause mucus include Question: (i) Draw a well labeled diagram of human digestive system (ii) Describe the role of following in digestion. a) Bile b) Salivary amylase c) HCl Ans. (i)a) Bile - emulsification of fats b) Salivary amylase - digest starch in mouthc) HCl - Activate pepsinogen by making medium acidic in stomata

Write the role of Villi in human digestive system

Your pancreas plays a big role in digestion. It is located inside your abdomen, just behind your stomach. It's about the size of your hand. During digestion, your pancreas makes pancreatic juices called enzymes. These enzymes break down sugars, fats, and starches. Your pancreas also helps your digestive system by making hormones The appendix is a thin, roughly four-inch-long tube that's part of your gastrointestinal (GI) tract. ( 1) The GI tract is a complex group of organs, each of which helps your body digest and absorb. The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver. Here's how these organs work together in your digestive system. Mouth. The mouth is the beginning of the.

The digestive system is one of the eleven. organ systems. of the human body, and it is composed of several hollow tube-shaped including the mouth, pharynx, esophagus, stomach, small intestine, large intestine (colon), rectum, and anus. It is lined with mucosal tissue that secretes digestive juices (which aid in the breakdown of food) and (which. The human digestive system, as shown in Figure 2, is a coiled, muscular tube (6-9 meters long when fully extended) stretching from the mouth to the anus. Several specialized compartments occur along this length: mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus saliva. small intestine. stomach. Have a look at the following diagram which gives an overview of the different parts making up the digestive system. 1. The mouth and oesophagus. Digestion starts in the mouth as food is chewed and mixed with saliva. It then travels down the oesophagus when you swallow. 2 Figure 16.1 The human digestive system temporary milk or deciduous teeth replaced by a set of permanent or adult teeth. This type of dentition is called diphyodont. An adult human has 32 permanent teeth which are of four different types (Heterodont dentition), namely, incisors (I), canine (C), premolars (PM) and molars (M) An increase in mucus production is signalled by a stimulation of the Vagus nerve (Cranial nerve 10) and is mediated by prostaglandins. The cells respond to external factors such as mechanical stress and elements of the cephalic and gastric digestion phases by increasing mucus productions as required

Human Physiology: An Integrated Approach, 6e (Silverthorn) Chapter 21 The Digestive System. 1) Mechanical digestion refers to. A) the progressive dehydration of indigestible residue. B) the input of food into the digestive tract. C) the enzymatic breakdown of food. D) the absorption of nutrients in the gut NCERT Exemplar Class 11 Biology is very important resource for students preparing for XI Board Examination. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th examination Tonsillitis is inflammation of the tonsils, two oval-shaped pads of tissue at the back of the throat — one tonsil on each side. It is a type of pharyngitis. Signs and symptoms of tonsillitis include swollen tonsils, sore throat, difficulty swallowing and tender lymph nodes on the sides of the neck

RBSE Class 10 Science Notes Chapter 2 Human Syste

explain the overall function of the digestive system ; Start the class by showing our video lesson The Human Gastrointestinal Tract. Discuss how the mouth, stomach, small intestine, and large. The human digestive system with diagram. The breakdown of large particles into small particles with the help of the enzyme is called digestion. The organs which are responsible for ingestion, digestion, absorption, assimilation, and egestion constitute the digestive system. The digestive system comprises the alimentary canal and associated. Mention two functions of mucus. Solution: Role of mucus: (a) Acts as a lubricant. (b) Protects the epithelial surface of the stomach from the corrosive effect of hydrochloric acid and digestion by pepsin. Question 10. Name the secretion of goblet cells in the human stomach. Solution: Goblet cells secrete mucus. Question 11. Where the taste buds.

Mucous Membrane (Mucosa) - Definition, Function & Example

Digestive System Organization critical role in digestion. •Includes: Liver, gall bladder, and pancreas. Liver •Directly affects digestion by producing bile •Bile aids in the digestion of fat PowerPoint Presentation - The Human Digestive System Author: Parent educatio 10. Draw a labelled diagram to show the alimentary canal of man. Ans. Digestive System of Human 11. Name the enzymes present in pancreatic juice and state their functions. Ans. Pancreatic juice contains a number of enzymes which act in alkaline medium. The enzymes are (i) Trypsin : converts remaining proteins into peptones an

Human Digestive System: Digestive System Function, Videos

The esophagus or gullet, runs from the pharynx through the diaphragm to the stomach.. Size and function. About 25 cm (10 inches) long, it is essentially a passageway that conducts food by peristalsis to the stomach.; Structure. The walls of the alimentary canal organs from the esophagus to the large intestine are made up of the same four basic tissue layers or tunics Digestive system in Gastropoda. The class Gastropoda is by far the largest and most diverse among molluscs, with many thousands of species including whelks, snails, limpets and slugs living in marine, freshwater and terrestrial ecosystems. In size, they range from about a millimetre to almost a metre in Syrinx aruanus and Aplysia vaccaria Human Digestive System. In the human digestive system, large organic masses are broken down into smaller particles that the body can use as fuel. This is a complex process. The breakdown of the nutrients requires the coordination of several enzymes secreted from specialized cells within the mouth, stomach, intestines, and liver Cystic fibrosis is an inherited disease caused by mutations in a gene called the cystic fibrosis transmembrane conductance regulator (CFTR) gene.The CFTR gene provides instructions for the CFTR protein. The CFTR protein is located in every organ of the body that makes mucus, including the lungs, liver, pancreas, and intestines, as well as sweat glands.. The CFTR protein has also been found in. Questions and Answers on Science: Biology- Human Digestive System consists the repository of 10 MCQ to enhance your preparation for various competitive examinations like IAS, PSC, SSC, Railway etc

Life Processes Class 10 Important Questions with AnswersBeginning with fasting as a phenomenon that is common to

As the muscles of your digestive system push food through the digestion process, the food gets broken down to be used by your body. In addition to the food and liquids that move through your digestive system, gas and air bubbles also get into the mixture. It is these pockets of gas and air that make the sounds you know as stomach growling General Science: NCERT Science Textbooks Class 6-12. Human Digestive System. Biomacromolecules (carbohydrates, proteins etc.) in food cannot be utilized by our body in their original form. They have to be broken down and converted into simple substances (glucose, amino acids etc.) in the digestive system Protein digestion begins in the stomach. The secretion of food in the stomach is aided by gastric secretions known as gastric juices. The gastric sap comprises about 97-99% water. The rest consists of mucin (mucus) as well as inorganic salts, digestive enzymes (pesin and renin), and lipase. This event is the main digestive function of the stomach