Digestive System

What is the J shaped muscular sac-like organ that food enters from the esophagus?

• Liver

• Stomach

• Pancreas

• Gallbladder

What is the significance of the mucosal layer in the stomach?

• It aids in the absorption of nutrients.

• It protects the stomach lining from being eroded by gastric acid.

• It helps in the digestion of proteins.

• It regulates the release of bile into the intestine.

What is the primary function of the stomach in the digestive system?

• To absorb nutrients from food.

• To break down food using acids and enzymes.

• To store food before digestion.

• To produce bile for fat digestion.

When food is broken down by enzymes or acid, __________ digestion is taking place.

• Mechanical

• Chemical

• Physical

• Biological

What is peristalsis?

• The wave-like muscle contractions that move food through the digestive tract.

• A type of digestive enzyme that breaks down proteins.

• The process of absorbing nutrients in the intestines.

• The secretion of bile from the liver.

What is mechanical digestion?

• The chemical breakdown of food by enzymes.

• The physical breakdown of food into smaller pieces, such as chewing.

• The absorption of nutrients in the intestines.

• The process of swallowing food.

What is the role of the pancreas in the digestive system?

• To produce insulin and regulate blood sugar levels.

• To produce digestive enzymes and bicarbonate to neutralize stomach acid.

• To absorb nutrients from digested food.

• To store bile produced by the liver.

What is the function of bile?

• To emulsify fats, making them easier to digest.

• To store vitamins and minerals.

• To produce insulin for blood sugar regulation.

• To break down proteins into amino acids.

What protects the stomach from the acid within it?

• A layer of mucus that coats the stomach

• Bicarbonate ions produced by the pancreas

• The stomach lining itself

• Digestive enzymes that neutralize acid

What is the function of the liver in digestion?

• To produce bile, which helps in the digestion of fats.

• To absorb nutrients from the food.

• To store vitamins and minerals.

• To break down carbohydrates into sugars.