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Numbers of Bacteria.

The Digestive System

Enzymes in Digestion.

  • There is about 100 trillion bacterial cells in the human body.
  • Amylase's are enzymes produced by gland near the mouth; they help speed up the break down of carbohydrates to sugar.
  • In your small intestine a number of other enzymes continue to speed up the breakdown of proteins into amino acids.
  • Remaining sugars are turned into glucose and used by your body's cells.

Stomach

The Stomach.

Enzymes

Thank You for listening!

  • Chyme is a thin, watery liquid
  • Mechanically, food is mixed in the stomach by peristalsis.
  • Chemically, food is mixed with enzymes and strong digestive solutions.
  • Specialized cells in the walls release about 2 liters of Hydrochloric acid each day.
  • Enzymes are types of protein that speeds up the rate chemical reactions in your body.
  • Chemical Digestion is possible because of enzymes.
  • Enzymes reduce the amount of energy necessary for a chemical reaction to begin.
  • If enzymes weren't in your body the rate of chemical reactions would slow down, some won't happen at all.

Functions of the Digestive system

  • Acid works with enzyme pepsin to digest protein.
  • Stomach produces mucus that makes food more slippery

The Small Intestine.

  • Food is processed in four stages; Ingestion, Digestion, Absorption, and Elimination.
  • Digestion is chemical and mechanical.

The Mouth

  • Villi cover the folds of the small intestine
  • Duodenum is the first part of the small intestine
  • Bile is greenish fluid from the liver
  • Most digestion takes place in the duodenum, which is the first part of the small intestine.
  • Mechanical digestion happens when you chew your food with your teeth and tongue.
  • Chemical digestion begins with the help of saliva.

The Large Intestine.

  • Rectum is the last section of the large intestine
  • Feces are semisolid wastes from the body
  • The large intestine absorbs water from undigested mass.
  • This keeps large amounts of water in your body and helps maintain homeostasis.

Organs of the Digestive System.

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  • Food passes through the digestive tract, the mouth, the esophagus, the stomach, the small and large intestine, the rectum, and the anus.
  • The tongue, teeth, salivary glands, liver, gallbladder, and pancreas are accessory organs.

Bacteria Are Important.

Other Enzyme Actions

  • Bacteria lives in many organs of the digestive track.
  • The bacteria in your large intestine feed on undigested material.
  • Vitamin K - for blood clotting.
  • B vitamins - for your nervous system and other body functions.
  • Enzymes also aid blood-clotting problems.

The Esophagus.

Vocabulary

  • Peristalsis are waves of muscle contractions that move food through the digestive tract
  • Epiglottis is a structure that automatically covers the opening to the windpipe to prevent food from entering it
  • Epiglottis is the structure that automatically covers the opening of the windpipe to prevent food from entering it
  • No digestion takes place in the esophagus.
  • Mucous glands in the wall of the esophagus keep the food moist.
  • Mechanical digestion
  • Chemical digestion
  • Digestion
  • Enzyme
  • Peristalsis
  • Chyme
  • Villi

Coeliac Disease

  • Coeliac disease is caused mostly by severe intolerance to gliadins in wheat gluten.
  • CD us a genetically based autoimmune response triggered by specific amino acid chains in wheat gliadin.

NCGS

Consumption of Gluten free foods.

  • CD affects about 1% of the population in most developed nations.
  • People with NCGS can recover from gastrointestinal issues by avoiding gluten.
  • Foods containing dietary gluten cause gastrointestinal distress in non-CD subjects.
  • Ncgs may be due to metabolites created during the processing of gluten by the digestive system.
  • Reovirus's are based on RNA while a virus can have both DNA and RNA as its infection vectors.
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