The Digestive System

What are villi?

• Villi are the fingerlike structures located in the small intestine that absorb nutrients.

• Villi are the cells that produce insulin in the pancreas.

• Villi are the muscles that help in the movement of food through the digestive tract.

• Villi are the bacteria that aid in digestion in the large intestine.

What is the significance of the duodenum?

• It is the last part of the small intestine where absorption occurs.

• It is the first part of the small intestine where most chemical digestion occurs.

• It is responsible for the production of bile.

• It connects the stomach to the large intestine.

What is one digestive function of the pancreas?

• The pancreas produces insulin.

• The pancreas absorbs nutrients from food.

• The pancreas secretes bile for fat digestion.

• The pancreas breaks down carbohydrates into sugars.

What is bile and where is it produced?

• A digestive fluid produced by the pancreas that helps digest proteins.

• A digestive fluid produced by the stomach that helps break down carbohydrates.

• A digestive fluid produced by the liver that helps emulsify fats.

• A digestive fluid produced by the intestines that helps absorb nutrients.

What is the role of pepsin in digestion?

• Pepsin is an enzyme that breaks down proteins into smaller peptides in the stomach.

• Pepsin is a hormone that regulates blood sugar levels.

• Pepsin is a vitamin that aids in the absorption of calcium.

• Pepsin is a type of carbohydrate that provides energy.

What is the role of amylase?

• Amylase is a hormone that regulates blood sugar levels.

• Amylase is an enzyme that helps break down carbohydrates into sugars.

• Amylase is a protein that aids in muscle contraction.

• Amylase is a vitamin that supports immune function.

What is the function of the gallbladder?

• The gallbladder stores bile, which helps in the digestion of fats.

• The gallbladder produces insulin to regulate blood sugar.

• The gallbladder filters toxins from the blood.

• The gallbladder absorbs nutrients from digested food.

What is chemical digestion?

• The process of breaking down food into smaller pieces without chemical change.

• The digestion process in which enzymes are used to break foods into their smaller chemical building blocks.

• The absorption of nutrients through the intestinal walls.

• The mechanical process of chewing food before swallowing.

What is mechanical digestion?

• The chemical process of breaking down food into smaller pieces.

• The physical process of breaking down food into smaller pieces without chemical change.

• The process of absorbing nutrients from food.

• The process of eliminating waste from the body.

What is the difference between absorption and digestion?

• Digestion is the process of taking nutrients into the bloodstream, while absorption is the process of breaking down food.

• Digestion is the process of breaking down food, while absorption is the process of taking nutrients into the bloodstream.

• Absorption occurs only in the stomach, while digestion occurs in the intestines.

• Digestion and absorption are the same processes that occur simultaneously.