Digestive System

What is peristalsis?

• A process that breaks down food into smaller pieces.

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

• A type of enzyme that aids in digestion.

• The absorption of nutrients in the intestines.

What is the function of the stomach in digestion?

• The stomach absorbs nutrients from food.

• The stomach breaks down food using acids and enzymes.

• The stomach stores food for later digestion.

• The stomach produces bile for fat digestion.

How does the liver contribute to digestion?

• The liver produces bile, which helps digest fats.

• The liver absorbs nutrients from the intestines.

• The liver secretes insulin to regulate blood sugar.

• The liver filters toxins from the blood.

What is the digestive system?

• A system where a certain group of organs work together to convert food into energy to feed the body.

• A network of blood vessels that transport nutrients throughout the body.

• A collection of muscles that help in the movement of the body.

• A series of chemical reactions that occur in the brain.

Where does the digestive system start?

• The mouth.

• The stomach.

• The esophagus.

• The small intestine.

What nutrients are primarily absorbed in the small intestine?

• Carbohydrates, proteins, fats, vitamins, and minerals.

• Only carbohydrates and proteins.

• Only fats and vitamins.

• Minerals and water only.

What is the significance of digestive enzymes?

• They help in the absorption of vitamins only.

• They break down food into smaller molecules that can be absorbed by the body.

• They are responsible for the taste of food.

• They increase the cooking time of food.

What is the function of bile in the digestive system?

• Bile helps in the absorption of vitamins.

• Bile emulsifies fats, making them easier to digest.

• Bile neutralizes stomach acid.

• Bile breaks down carbohydrates.

How does the digestive system maintain homeostasis?

• By regulating the absorption of nutrients and the elimination of waste, ensuring the body has the necessary substances for energy and function.

• By producing hormones that control hunger and satiety.

• By filtering toxins from the blood and excreting them through urine.

• By storing excess nutrients for future use and preventing nutrient loss.

Where does the process of nutrient absorption primarily occur in the digestive system?

• Stomach

• Large intestine

• Small intestine

• Esophagus