IB SEHS 3.1 Nutrition

Which of the following is an example of a micronutrient?

• Lipid

• Protein

• Mineral

• Carbohydrate

In what way do proteins differ in composition from carbohydrates? They contain

• Carbon

• Oxygen

• Hydrogen

• Nitrogen

What is classified as a macronutrient?

• Fibre

• Water

• Lipid

• Minerals

Which is an example of a macronutrient?

I. Lipid

II. Protein

III. Carbohydrate

• I only

• I and II only

• II and III only

• I, II and III only

What is the main purpose of protein in the diet?

• As a primary energy source for aerobic activity

• As a primary energy source for anaerobic activity

• To repair and rebuild muscle fibres

• To provide insulin

What is the main role of carbohydrate?

• To act as an insulator

• To regulate heart rate

• To act as an energy source

• To promote growth and repair

Which micronutrient is a carbohydrate?

• Calcium

• Fibre

• Vitamin A

• Folic Acid

What is a function of lipids?

• Build tissue

• Help digestion

• Provides insulation

• Strengthen bones

What are the chemical composition and ratio of a glucose molecule?

• S, H and O (1:2:1 ratio)

• S, H and O (2:1:2 ratio)

• C, H and O (1:2:1 ratio)

• C, H and I (2:1:2 ratio)

Which is the basic structure of a glucose molecule?

• 
• 
• 
•