Grade 9 - The Digestive System

Which of the following organss does no digestion take place?

• Mouth

• Esophagus

• Stomach

• Small intestine

The teeth and tongue of the oral cavity break foodstuff down physically. This is an example of

• mechanical digestion

• chemical digestion

• absorption

• peristalsis

Which of the following answers correctly sequences the pathway food takes from the beginning to end?

• mouth, esophagus, stomach, small intestine, large intestine

• mouth, esophagus, stomach, large intestine, small intestine

• mouth, stomach, esophagus, small intestine, large intestine

• mouth, stomach, esophagus, large intestine, small intestine

Which organ makes bile to help break down fats?

• liver

• gallbladder

• pancreas

The mouth carries out

• mechanical digestion

• chemical digestion

• mechanical and chemical digestion

• No digestion

What organ is responsible for the absorption of water and movement of waste?

• large intestine

• small intestine

• stomach

• oral cavity

Which of the following helps digest carbohydrates in the mouth...

• salivary amylase

• lysozymes

• mucin

• bolus

Which structure prevents food from entering the trachea? 

• larynx
• soft palate
• pharynx
• epiglottis

Which area is a common area for both food and air? 

• pharynx
• larynx
• soft palate
• epiglottis

The involuntary muscular movement of food caused by smooth muscle is called

• bolus transport
• indigestion
• absorption
• peristalsis