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Digestive System

Digestive System is the category for questions regarding the breakdown and absorption of food-stuffs in our alimentary canal. Questions about the stomach and intestines can be included in this category.

7,599 Questions

Why can't carnivores digest plant foods?

Because plant cells have a tough cellulose wall surrounding their cell wall and most animals do not make enzymes which digest cellulose that efficiently and also because animal cells do not contain cellulose so they are much easier to digest.

What is the purpose of sodium azide in the Bile Esculin test?

Sodium azide is included in the Bile Esculin test to inhibit the growth of Gram-negative organisms, which could interfere with the test results. Sodium azide helps to maintain a selective environment that favors the growth of group D streptococci, the target organisms for the test.

Is streptococcus a resident biota of the gastrointestinal tract?

It depends on the species. For example, Streptococcus bovis is usually found in the large bowel and it causes infectious endocarditis in people who have some diseases in that organ and have some cardiac abnormality. As for Streptococcus pyogenes, it can be found in the pharynx (throat) of some people as colonizing bacteria, and in others cause disease (amygdalitis), but it's not supposed to be found in most people. Streptococcus pneumoniae, which is the most common cause of pneumonia, sinusitis and otitis media, colonises a large number of infants, and can also cause disease if the conditions are favourable. Streptococcus viridans causes teeth disease and is part of the permanent micro-biota of the mouth; if imbalance occurs, then it can cause some problem. Enterococcus are a group of bacteria that also belongs to the major group of streptococcus, and, as the name says, are found in the large bowel, rarely being a cause of infectious endocarditis or urinary infection (of the bladder).

Explain why chemical digestion does not begin in the mouth for all foods?

Chemical digestion in the mouth primarily involves the breakdown of carbohydrates by the enzyme amylase in saliva. Not all foods require significant carbohydrate digestion, such as proteins and fats. Therefore, chemical digestion for these macronutrients begins further down the digestive tract, where specific enzymes like pepsin and lipase are present.

How do the secretions produced by the accessory structures enter the gastrointestinal tract?

Secretions from the liver (bile and enzymes) will pass through the common hepatic duct and reaches the pancreatic duct. pancreatic juices from the pancreas will also flow to the pancreatic duct. both will be flowing to the duodenum through a small opening in the duodenum.

Which food digests fast sugar or beans?

Sugar will be broken down much faster than beans. Sugar is almost pure glucose so it is absorbed into the system within minutes. Whereas beans are highly concentrated carbohydrates which take longer to break down to be absorbed by the body for fuel. As for quality, beans are the better choice.

Which enzyme breaks down phenylalanine?

The enzyme phenylalanine hydroxylase breaks down phenylalanine into tyrosine. This enzyme is essential for the conversion of phenylalanine to tyrosine in the body. Deficiency in this enzyme can lead to a build-up of phenylalanine, which can result in a condition called phenylketonuria (PKU).

What is the of secretin?

It inhibits the secretions of the stomach.

What are 5 What are facts about an esophagus?

  1. The esophagus is a muscular tube that connects the throat (pharynx) with the stomach.
  2. It plays a vital role in swallowing food and liquids and propelling them down into the stomach through a series of coordinated muscle contractions.
  3. The esophagus is lined with mucous membrane to protect it from damage by stomach acid.
  4. It has a sphincter at both ends - the upper esophageal sphincter near the throat and the lower esophageal sphincter at the entrance to the stomach.
  5. Disorders of the esophagus can result in conditions such as GERD, heartburn, and esophageal cancer.

What animal system is responsible for nutrient absorption?

The digestive system is responsible for nutrient absorption in animals. This system includes organs such as the stomach, intestines, and liver, which work together to break down food into nutrients that can be absorbed by the body.

What happens to molecules of of protein during digestion?

Enzymes are crucial contributors to protein digestion. Protein-digestingproteinases or proteases. Protein generally takes the form of very complex molecules arranged in chains of amino acids. So the bonds binding these complex molecules together must first be broken down.

enzymes are referred to as

This digestive process begins in the stomach, where hydrochloric acid, secreted in the stomach's gastric acid, attacks the protein molecules separating them and breaking them down into amino acids. Then the gastric enzyme pepsin - the only protease able to digest collagen starts to digest the amino acids.

Digestion of proteins continues in the first segment of the small intestine. As in fat digestion, the pancreas helps the process by secreting the pancreatic protease enzymes trypsin and chymotrypsin. Like pepsin, trypsin breaks down a protein into single amino acid molecules, through a process called hydrolysis. During hydrolysis, a water molecule is inserted between the two amino acids which are bonded together. This breaks the bond between them.

After breakdown, the amino acids are small enough to pass through capillaries in the villi. Once in the bloodstream, the amino acids are distributed by both red blood cells and by the liquid blood plasma to tissues throughout the body where they are used in the creation and repair of cell structures. Such is the demand for protein, the body maintains a constant balance of amino acids in the blood.

I hope that helps! Other than that I have no idea!!

How do you poop your pants without knowing?

Accidents can happen due to various reasons such as illness, bowel control issues, or physical limitations. In such cases, it is important to seek medical advice to address any underlying health concerns and to discuss techniques for managing bowel movements effectively.

How many kinds of amylase?

There are three main types of amylase: salivary amylase, pancreatic amylase, and fungal amylase. Salivary amylase is produced in the mouth, while pancreatic amylase is produced in the pancreas. Fungal amylase is produced by fungi and is often used in commercial applications such as in the food industry.

What need for food is based on the body's need for nutrients?

The need for food is based on the body's requirement for essential nutrients such as carbohydrates, proteins, fats, vitamins, and minerals that contribute to overall health and well-being. These nutrients are necessary for functions like energy production, growth, repair, and maintenance of cells and tissues. Meeting nutrient needs through a balanced diet supports optimal bodily functions and overall health.

What digestive juice is secreted in the esophagus?

Mucus is secreted in the esophagus to provide lubrication and protect the lining from acidic stomach contents that may reflux back into it.

What is an edible decomposition reaction?

An edible decomposition reaction is a chemical process where complex molecules in food break down into simpler substances, often due to heat or enzymes. This can change the texture, flavor, and nutritional profile of the food. Examples include caramelization of sugar or browning of meat during cooking.

Which system is responsible for the formation of digestive enzymes?

The digestive system is responsible for the formation of digestive enzymes. These enzymes are produced in various organs such as the salivary glands, stomach, pancreas, and small intestine to help break down food into nutrients that can be absorbed by the body.

What is the name given to the starch digesting enzyme secreted by the salivary glands?

The enzyme secreted by the salivary glands that digests starch is called salivary amylase. It helps break down complex carbohydrates in food into simpler sugars like maltose and dextrin.

What feeds on the undigested food in the digestive tract to help complete digestion?

The gut microbiota, which consists of beneficial bacteria and other microorganisms, help to break down undigested food in the digestive tract. These microorganisms aid in fermentation and breakdown of certain nutrients, helping to complete digestion and extract additional energy from food.

Are villi a part of the gastrointestinal tract?

Yes, villi are finger-like projections found in the lining of the small intestine, which is part of the gastrointestinal tract. Villi increase the surface area of the intestine, helping to improve nutrient absorption.

Does a perch have a gastrovascular cavity or a complete digestive tract?

A perch has a complete digestive tract, which includes a mouth, esophagus, stomach, intestine, and anus. This structure allows for more efficient digestion and nutrient absorption compared to organisms with a gastrovascular cavity.

What mean digestion in chemistry?

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Digesting" a solid material in chemistry means to contact the material with a liquid until at least part of the original material is dissolved in the digesting liquid. Heating is often applied to speed the reaction. Thus, biological digestion in humans is a special case of chemical digestion, when solid food particles are mixed with the natural acid solution in the stomach and changed to water soluble materials.

What do proteins digest?

Proteins that carry out enzymatic activity are known as enzymes. Enzymes can catalyze the conversion of substrate into the product. In digestion hydrolytic enzymes such as proteases, lipases, glycosidases such as amylase digest proteins, lipases, and carbohydrates respectively.

What is the opposite of defecate?

Technically, it would be to "fecate." That means to accumulate feces. Defecate means to remove fecal matter from the body.

Why does inflammation occur in the body?

Inflammation occurs in the body as a natural response to injury or infection. It is the body's way of protecting itself and initiating the healing process by sending immune cells and chemicals to the affected area. Chronic inflammation, however, can lead to various health issues.