Diagnostic test: Biology Y8

What is the primary function of the digestive system?

• To pump blood throughout the body

• To break down food into nutrients the body can use

• To exchange gases between the blood and the environment

• To produce hormones

Which of the following is the first part of the digestive system where food is ingested?

• Stomach

• Esophagus

• Mouth

• Small intestine

What enzyme in saliva begins the digestion of starches?

• Protease

• Amylase

• Lipase

• Pepsin

Which part of the digestive system is responsible for absorbing most of the nutrients from food?

• Mouth

• Stomach

• Small intestine

• Large intestine

What is the function of the stomach in digestion?

• To chew and mix food with saliva

• To absorb water and minerals

• To produce bile

• To mix food with gastric juices and break down proteins

What is the role of bile in the digestive system?

• To digest carbohydrates

• To emulsify fats

• To break down proteins

• To neutralize stomach acid

Where is bile stored before it is released into the small intestine?

• Liver

• Stomach

• Pancreas

• Gallbladder

Which organ produces insulin and digestive enzymes?

• Liver

• Stomach

• Pancreas

• Small intestine

What is the function of the large intestine?

• To digest proteins

• To absorb water and form feces

• To produce digestive enzymes

• To absorb nutrients from food

What is peristalsis?

• The release of digestive enzymes

• The absorption of nutrients

• The rhythmic contraction of muscles to move food through the digestive tract

• The production of bile