The Digestive System

Digestion refers to

• the build-up of food particles into larger ones

• the breakdown of food into smaller particles

• the uptake of small particles into the blood

Enzymes in the digestive system assist with

• Absorption

• Digestion

• Both of the above

Salivary amylase

• makes saliva slippery

• breaks down starch

• kills germs in the mouth

The enzyme in the stomach is

• pepsi

• lipi

• pepsin

The enzyme in the stomach works in

• an alkaline environment

• acidic environment

• neutral environment

The teeth are involved in

• chemical digestion

• mechanical digestion

• both of the above

Food moves from the mouth to the stomach by

• epiglottis

• peristalsis

• chyme

Villi

• are equivalent to the brush border

• are finger like projection

• decrease the surface area in the small intestine

The small intestine has the following pH

• alkaline

• acidic

• neutral

The enzyme which breaks down the main sugar in milk is

• Lipase

• Lactase

• Lumen