Nutrition and Digestion Post-Test revision

What is the primary function of carbohydrates in the body?

• Provide raw materials for cell repair

• Act as helper molecules in chemical reactions

• Serve as a major source of energy

• Protect organs and insulate the body

How many Calories does one gram of fat provide?

• 4 Calories

• 9 Calories

• 7 Calories

• 2 Calories

Which nutrient is made up of amino acids?

• Carbohydrates

• Fats

• Proteins

• Vitamins

What is the role of villi in the small intestine?

• Produce digestive enzymes

• Increase surface area for nutrient absorption

• Break down fats into smaller droplets

• Store bile for digestion

Which type of fat is usually liquid at room temperature?

• Saturated fat

• Trans fat

• Unsaturated fat

• Cholesterol

What is the function of saliva in the mouth?

• Mechanically breaks down food

• Begins chemical digestion of starches

• Protects the stomach from acid

• Absorbs nutrients into the blood

Which organ produces bile to aid in fat digestion?

• Pancreas

• Liver

• Stomach

• Gallbladder

What is the main difference between simple and complex carbohydrates?

• Simple carbohydrates provide more energy

• Complex carbohydrates are made of linked sugar molecules

• Simple carbohydrates are not digested

• Complex carbohydrates are stored in the body

Why is water considered the most important nutrient?

• It provides the most Calories

• It is essential for all vital body processes

• It builds bones and teeth

• It acts as an enzyme in digestion

What is the role of the epiglottis during swallowing?

• Pushes food toward the stomach

• Seals off the windpipe to prevent choking

• Produces mucus to aid digestion

• Breaks down proteins into amino acids