Digestive System and Nutrient Functions

The video tutorial explains how the human body supplies energy through digestion. It covers the roles of autotrophs and heterotrophs, the importance of nutrients like carbohydrates, proteins, fats, vitamins, and minerals, and the processes of mechanical and chemical digestion. The functions of the liver, pancreas, small intestine, and large intestine are detailed, emphasizing nutrient absorption and waste elimination.

What are the two essential components needed for cellular respiration to release energy?

• Glucose and carbon dioxide

• Oxygen and nitrogen

• Glucose and oxygen

• Water and oxygen

Which organisms are known as producers because they make their own food?

• Decomposers

• Heterotrophs

• Autotrophs

• Carnivores

Which type of nutrient is primarily responsible for quick energy?

• Vitamins

• Proteins

• Fats

• Carbohydrates

What is the primary function of proteins in the body?

• Vitamin production

• Insulation

• Growth and repair

• Energy storage

Which type of fat is considered healthier and is plant-based?

• Animal fats

• Unsaturated fats

• Trans fats

• Saturated fats

What is the role of saliva in digestion?

• It absorbs nutrients

• It stores bile

• It digests starch

• It breaks down proteins

What is the main function of the liver in digestion?

• It absorbs water

• It produces insulin

• It stores vitamins

• It produces bile

Where does most nutrient absorption occur in the digestive system?

• Large intestine

• Stomach

• Esophagus

• Small intestine

What is the primary role of the large intestine?

• Digest proteins

• Reabsorb water

• Absorb nutrients

• Produce bile

Which organ is responsible for regulating blood sugar by producing insulin?

• Stomach

• Gallbladder

• Pancreas

• Liver