'Enzyme pepsin' diaporamas de présentation

The Digestive System

1.31k views • 113 slides

Enzymes

Enzymes. Introduction to Enzymes. Enzymes are proteins that act as biological catalysts. Catalysts - speed up chemical reactions. Enzymes - speed up chemical reactions in living things. Chemical Reactions .

719 views • 35 slides

Mixtures & Compounds

Mixtures & Compounds. Matter. Heterogeneous mixture. Homogenous Mixture. NO. Uniform Distribution?. YES. Fixed Composition ? . Yes No. Pure substance. solution. Can it be broken down into simpler substances?. Element. compound. Pure Substances.

470 views • 25 slides

Antacids

Antacids. Adapted from L . Scheffler. 1. Digestion. Digestion involves the break down of foods, particularly carbohydrates, lipids, and proteins into forms that can be metabolized in the cells Amylase found in saliva begins the breakdown of starches

526 views • 12 slides

The Human Digestive System

The Human Digestive System. Oral Cavity. Chewing Saliva moistens food Saliva contains enzymes. Esophagus. Moves food to the stomach by peristalsis. Stomach. Sphincters control movement of food into and out of the stomach Stomach glands release gastric juices water, enzymes, mucus, acid

520 views • 10 slides