Digestive System and Balanced Diet

What is the main function of the human digestive system?

• To break down food and absorb nutrients.

• To regulate body temperature.

• To filter toxins from the blood.

• To store energy for future use.

Name the organ where digestion begins.

• Mouth

• Intestine

• Stomach

• Esophagus

What is the role of the stomach in digestion?

• The stomach mixes food with gastric juices to break it down into chyme for nutrient absorption.

• The stomach absorbs nutrients directly from food into the bloodstream.

• The stomach serves as a storage site for undigested food before elimination.

• The stomach produces bile to aid in fat digestion and absorption.

Which organ absorbs most of the nutrients from food?

• small intestine

• stomach

• pancreas

• large intestine

What is the purpose of saliva in the digestive process?

• The purpose of saliva in the digestive process is to initiate digestion, moisten food, and facilitate swallowing.

• Saliva helps in nutrient absorption and energy production.

• Saliva acts as a barrier against harmful bacteria in the stomach.

• Saliva is primarily responsible for breaking down proteins in the mouth.

What is the role of the small intestine?

• The small intestine absorbs nutrients and continues the digestion of food.

• The small intestine filters blood and regulates fluids.

• The small intestine stores waste before excretion.

• The small intestine produces hormones and enzymes.

What is the importance of fiber in our diet?

• Fiber helps in increasing cholesterol levels in the body.

• Fiber is important for digestive health, weight management, and reducing the risk of chronic diseases.

• Fiber is primarily a source of protein and energy.

• Fiber is essential for muscle growth and repair.

Name three types of nutrients our body needs.

• Carbohydrates, proteins, fats

• Antioxidants, probiotics, hormones

• Sugars, fibers, enzymes

• Vitamins, minerals, water

What is the function of proteins in our body?

• Proteins serve as the main source of carbohydrates in the body.

• Proteins act solely as a source of vitamins and minerals.

• Proteins function as enzymes, structural components, transporters, signaling molecules, and immune responders in the body.

• Proteins are primarily used for energy storage and fat metabolism.

What are vitamins and why do we need them?

• Vitamins are harmful substances that should be avoided for good health.

• Vitamins are only found in animal products and are not necessary for humans.

• Vitamins are synthetic chemicals that our body can produce on its own.

• Vitamins are essential nutrients that our body needs to function properly and maintain health.