1.the digestive system breaks down food and absorbs it into the bloodstream. 2.the main organs of...

1. The Digestive System breaks down food and absorbs it into the bloodstream.

2. The main organs of the digestive system are the stomach, pancreas, gall bladder, small and large intestine, rectum and anus

The Digestive SystemThe Digestive SystemThe Digestive SystemThe Digestive System

The Digestive System

The Digestive SystemThe Digestive SystemThe Digestive SystemThe Digestive System

The Digestive System

The Digestive SystemThe Digestive SystemThe Digestive SystemThe Digestive System

The Digestive System

The Digestive SystemThe Digestive SystemThe Digestive SystemThe Digestive System

The Digestive System

Digestive EnzymesDigestive EnzymesDigestive EnzymesDigestive Enzymes

1. Starch, Proteins and Fats are insoluble.

2. They must be broken down before they can be absorbed.

3. Enzymes speed up the break down.

Digestive Enzymes

Digestive EnzymesDigestive EnzymesDigestive EnzymesDigestive Enzymes

Digestive Enzymes

AmylaseAmylaseAmylaseAmylase

1. The enzyme amylase is made in the salivary glands, pancreas and small intestine.

2. It catalyses the breakdown of starch into sugars.

Amylase

ToothToothToothTooth

Amyase

Tooth decayTooth decayTooth decayTooth decay

Amyase

AmylaseAmylaseAmylaseAmylase

Amyase

The OesophagusThe OesophagusThe OesophagusThe Oesophagus

The Oesophagus

1. The enzyme protease is made in the stomach, pancreas and small intestine. It catalyses the breakdown of protein into amino acids.

ProteaseProteaseProteaseProtease

Protease

ProteaseProteaseProteaseProtease

Protease

1. The enzyme lipase is made in the pancreas and small intestine. It catalyses the breakdown of fats into fatty acids and glycerol.

2. The liver produces bile. Bile is stored in the gall bladder. When released into the small intestine it neutralises stomach acid and emulsifies fats.

Lipase and BileLipase and BileLipase and BileLipase and Bile

Lipase and BIle

BileBileBileBile

Bile

LipaseLipaseLipaseLipase

Lipase

The Small IntestineThe Small IntestineThe Small IntestineThe Small Intestine

1. The small intestine absorbs soluble food into the bloodstream.

2. The large intestine absorbs water into the bloodstream.

The Small Intestine

The Small IntestineThe Small IntestineThe Small IntestineThe Small Intestine

The Small Intestine

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