Digestive System

Recall which part of the digestive system is indicated by the red arrow in the picture below.

• Liver

• Rectal Cavity

• Small Intestine

• Large Intestine

Identify what part of the digestive system is described in the following statement below.

"Stores food, and mixes it with gastric acid."

• Oesophagus

• Stomach

• Rectal Cavity

• Oral Cavity

Determine what is the labelled structure and explain its function.

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Recall what mechanical digestion is.

• Where you replace part of your digestive tract with complex machinery

• The act of drinking special chemicals after a meal to aid your digestion

• The process of physically breaking up food into smaller pieces

• The process of converting large complex food molecules into simpler molecules

Cheese fondue is a popular dinner dish in some countries. In the small intestine, the fat from the cheese is converted into simpler fatty acids and glycerol.

Identify which type of digestion this is.

• Mechanical

• Chemical

Recall what type of molecule enzymes are.

• Proteins

• Carbohydrates

• Nucleic Acids

• Lipids

Recall what a biological catalyst is.

• A substance that increases activation energy in cells

• A protein that can slow a reaction

• A substance that speeds up reactions in living things

• A chemical that can react with a substrate

Recall why we need to break down macromolecules into monomers during digestion.

• To allow the molecules to be absorbed

• To release energy by respiration

• To help the molecules move down the gut

• To product heat to keep us warm

Recall what type of enzyme breaks down starch into sugars

• Lipase

• Protease

• Amylase

• Nuclease

Recall where in the body amylase digests carbohydrates.

Select ALL correct options

• Small Intestine

• Stomach

• Mouth

• Pancreas

• Liver