Quiz on : Lecture 2

What is the primary function of digestion?

• To absorb nutrients directly

• To break down food into simpler substances

• To produce digestive enzymes

• To store energy

Which part of the digestive tract is responsible for maximum digestion?

• Stomach

• Large intestine

• Mouth

• Small intestine

What enzyme in saliva begins the digestion of starch?

• Lipase

• Pepsin

• Amylase

• Trypsin

Which organ produces bile for fat digestion?

• Pancreas

• Liver

• Gall bladder

• Stomach

What is the main role of the large intestine?

• Secretion of digestive juices

• Reabsorption of water

• Absorption of nutrients

• Digestion of proteins

What is the term for the breakdown of complex substances into simpler compounds?

• Catabolism

• Anabolism

• Metabolism

• Digestion

Which hormone stimulates gall bladder contraction?

• Insulin

• Secretin

• Cholecystokinin

• Gastrin

What is the primary function of villi in the small intestine?

• To increase surface area for absorption

• To store bile

• To produce digestive enzymes

• To transport nutrients

Which of the following factors can slow down digestion?

• Eating small meals

• Anger and worry

• Chewing food well

• Strong acids

What is the waste product of digestion and absorption called?

• Feces

• Chyme

• Villi

• Bile