Digestive enzymes and their functions essay

Digestive Enzymes and their functions Digestive Enzymes and their functions General Health 0 What are digestive enzymes? Enzymes which break down macromolecules into smaller units are called digestive enzymes.

Digestive enzymes and their functions essay

To turn text into a link, highlight the text, then click on a page or file from the list above. Comments 18 Maria said at The stomachs structure is covered by smooth muscles that contracts and expands.

The pancreas is a gland that gives out insuline that acts like a regulator of sugar in the blood and it gives out lycogen. Small intestine the food goes thru there and most of the absorption of nutrients into blood occur in the small intestine.

Cells in the lining of the stomach secrete a strong acid and powerful enzymes that are responsible for the breakdown process.

When the contents of the stomach are sufficiently processed, they are released into the small intestineSmall intestine made up of three segments the duodenum, jejunum, and ileum the small intestine is a foot long muscular tube that breaks down food using enzymes released by the pancreas and bile from the liver.

Peristalsis also is at work in this organ, moving food through and mixing it with digestive secretions from the pancreas and liver. The duodenum is largely responsible for the continuous breaking-down process, with the jejunum and ileum mainly responsible for absorption of nutrients into the bloodstream.

Contents of the small intestine start out semi-solid, and end in a liquid form after passing through the organ. Water, bile, enzymes, and mucous contribute to the change in consistency. Once the nutrients have been absorbed and the leftover-food residue liquid has passed through the small intestine, it then moves on to the large intestine, or colon.

The pancreas secretes digestive enzymes into the duodenum, the first segment of the small intestine. These enzymes break down protein, fats, and carbohydrates. The pancreas also makes insulin, secreting it directly into the bloodstream. Insulin is the chief hormone for metabolizing sugar.

Jessica said at 2: The small intestines are about 7 meters long and cm in diametersand the small intestines are where the majority of the digestion is done and food is absorbed. CJ said at 5: The human stomach is a muscular, elastic, pear-shaped bag, lying crosswise in the abdominal cavity beneath the diaphragm.

It contours shape depending upon the position of the body and the amount of food inside. One of the primary functions of the stomach is to break down food with the aid of gastric juices. The stomach has five layers, from the the inside out they are the mucosa, submucosa, muscularis, subserosa, and the serosa.

The stomach has four major types of secretory epithelial cells that cover the surface and extend down into gastric pits and glands. They are Mucous Cells which secrete an alkaline mucus that protects the epithelium against shear stress and acid, Parietal Cells which secrete hydrochloric acid, Chief Cells which secrete pepsin, and lastly G Cells which secrete the hormone gastrin.

Next, we have the Pancreas. The Pancreas is a glandular organ that secretes digestive organs and hormones. The Pancreas lies beneath the stomach and is connected to the small intestine. The Pancreas contains hormone producing cells that secrete two hormones which go by the name of insulin and glucagon.

Altogether, the Pancreas produces enzymes that digest foods and break down starches. Lastly, we have the small intestine. These intestines are part of the digestive tract which are located between the stomach and anus. The small intestine is about six meters long and is coiled up in the center of the abdominal cavity.

Digestive enzymes and their functions essay

It consists of three sections which are the upper duodenumjejunum, and the ileum. The lining of the small intestine secretes a hormone called secretin, which stimulates the pancreas to produce digestive enzymes.

The small intestine primarily does the extensive part of digestion. Most food products are absorbed in the small intestine. These three organs all function within the body and need each other to properly do their job.Functions There are 3 functions of the digestive system: food is broken down, nutrients are absorbed, and waste is eliminated.

The food is broken down by chemical digestion (food is broken down by enzymes) and mechanical digestion (food is physically broken down). The main functions of the pancreas is to release the hormones insulin and glucagon into the bloodstream and secrete powerful digestive enzymes which enter the small intestine to help the digestion of carbohydrates, proteins, and fats.

Essay Human Digestive System. Human Digestive System Single-celled organisms can directly take in nutrients from their outside environment. Multi-cellular animals, with most of their cells removed from contact directly with the outside environment, have developed specialized structures for obtaining and breaking down their food.

digestive enzymes into tiny pieces that are small enough to travel through your blood stream and enter cells. Enzymes are proteins that are found in all living Part 1 (Day 1 – 2): Enzymes and Their Functions – Lock-and-Key Activity Prepare two individual sets of 4 locks and 4 keys each (one per group).

In the digestive system, enzymes are produced to break down carbohydrates, proteins and fats into smaller soluble molecules from large food molecules. These spread through the tube of the small intestine and into the blood plasma (carbohydrates and proteins) or lymph (fats) and pass to the cells.

The liver has multiple functions, but its main function within the digestive system is to process the nutrients absorbed from the small intestine. Bile from the liver secreted into the small intestine also plays an important role in digesting fat.

Digestive enzyme - Wikipedia