How the Organs in the Digestive System Work Together

The video tutorial explains how organ systems, particularly the digestive system, function. It begins with an overview of organ systems, cells, tissues, and organs, using the heart as an example. The tutorial then focuses on muscle cells and their role in movement. The digestive system is introduced, detailing the roles of the liver, gallbladder, pancreas, stomach, and intestines. The digestion process is explained, highlighting the breakdown of food by enzymes and the absorption of nutrients in the small intestine, aided by structures like villi.

What is a tissue in the context of multicellular organisms?

• A group of similar cells working together

• An organ performing a specific function

• A system of organs working together

• A single cell with a unique function

Which organ is responsible for producing bile in the digestive system?

• Liver

• Gallbladder

• Pancreas

• Stomach

What enzyme in saliva begins the digestion of starch?

• Protease

• Carbohydrase

• Lipase

• Amylase

What is the role of hydrochloric acid in the stomach?

• To break down carbohydrates

• To destroy pathogens

• To neutralize stomach acids

• To emulsify fats

How does bile aid in the digestion of fats?

• By emulsifying fats into smaller droplets

• By breaking down proteins

• By converting fats into amino acids

• By neutralizing stomach acids

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

• To churn food

• To produce digestive enzymes

• To increase surface area for absorption

• To store bile

Which of the following is NOT a product of digestion absorbed in the small intestine?

• Glucose

• Amino acids

• Starch

• Glycerol