Define digestion.
The process by which food is broken down into smaller components for absorption.
What organ produces bile?
The liver produces bile, which aids in fat digestion.
True or false: The esophagus connects the mouth to the stomach.
TRUE
Fill in the blank: The stomach secretes _______ to aid digestion.
gastric acid
What is the primary function of the small intestine?
To absorb nutrients from digested food.
Define peristalsis.
The wave-like muscle contractions that move food through the digestive tract.
What is the role of saliva in digestion?
Saliva helps break down food and lubricates it for easier swallowing.
True or false: The pancreas produces insulin and digestive enzymes.
TRUE
Fill in the blank: The large intestine primarily absorbs _______.
water
What is chyme?
A semi-liquid mixture of food and digestive juices in the stomach.
Define absorption in the digestive process.
The uptake of nutrients from the digestive tract into the bloodstream.
What is the function of the gallbladder?
To store and concentrate bile produced by the liver.
True or false: The rectum is the final section of the large intestine.
TRUE
Fill in the blank: Fiber aids in _______ during digestion.
regular bowel movements
What is the role of enzymes in digestion?
Enzymes break down complex food molecules into simpler forms.
Define digestion in two stages.
Mechanical digestion (physical breakdown) and chemical digestion (enzymatic breakdown).
What is the function of the stomach?
To mix food with gastric juices and initiate protein digestion.
True or false: The tongue helps in the mechanical digestion of food.
TRUE
Fill in the blank: The anus is the opening for _______.
waste elimination
What is heartburn?
A burning sensation caused by stomach acid backing up into the esophagus.
Define nutrient.
A substance that provides nourishment essential for growth and the maintenance of life.
What is the role of lactase?
Lactase is an enzyme that breaks down lactose, the sugar in milk.
True or false: Probiotics are beneficial bacteria for gut health.
TRUE
Fill in the blank: The cecum is the beginning of the _______.
large intestine
