SEHS Topic 3.1 Revision - Nutrition

What are the macronutrients?

• Fat, carbohydrate, water, protein

• Vitamins, minerals, water, protein

• Fiber, antioxidants, sodium, potassium

• Calcium, iron, zinc, magnesium

Tags

SEHS

Which of the following is a micronutrient?

• Protein

• Carbohydrate

• Fat

• Vitamin C

Tags

SEHS

What is the chemical composition of a glucose molecule?

• N, O, P (2:1:1 ratio)

• C, H, O (1:2:1 ratio)

• C, H, N (1:1:1 ratio)

• C, O, Na (2:1:1 ratio)

Tags

SEHS

How do glucose molecules combine to form disaccharides and polysaccharides?

• Oxidation reaction

• Reduction reaction

• Hydrolysis reaction

• Condensation reaction

Tags

SEHS

What is the composition of a molecule of triacylglycerol?

• Glycerol and one fatty acid

• Glycerol and three fatty acids

• Glycerol and two fatty acids

• Glycerol and four fatty acids

Tags

SEHS

What distinguishes saturated fatty acids from unsaturated fatty acids?

• Saturated fatty acids are solid at room temperature, unsaturated fatty acids are liquid at room temperature

• Saturated fatty acids have no double bonds, unsaturated fatty acids contain one or more double bonds

• Saturated fatty acids originate from plant-based foods, unsaturated fatty acids originate from animal sources

• Saturated fatty acids have double bonds, unsaturated fatty acids have no double bonds

Tags

SEHS

What is the chemical composition of a protein molecule?

• C, H, O, P

• C, N, O, S

• N, O, S, P

• C, H, O, N

Tags

SEHS

What distinguishes an essential amino acid from a non-essential amino acid?

• Essential amino acids can be synthesized by the human body, non-essential amino acids must be obtained from diet

• Essential amino acids must be obtained from diet, non-essential amino acids can be synthesized by the human body

• Essential amino acids have no nutritional value, non-essential amino acids are essential for growth

• Essential amino acids are found in animal sources, non-essential amino acids are found in plant-based foods

Tags

SEHS

What are the approximate energy content values per 100 g of carbohydrate, lipid, and protein?

• Carbohydrate 1800 kJ, lipid 3800 kJ, protein 1700 kJ

• Carbohydrate 1500 kJ, lipid 4500 kJ, protein 1600 kJ

• Carbohydrate 2000 kJ, lipid 3500 kJ, protein 1800 kJ

• Carbohydrate 1760 kJ, lipid 4000 kJ, protein 1720 kJ

Tags

SEHS

How does the recommended energy distribution of the dietary macronutrients differ between endurance athletes and non-athletes?

• Endurance athletes have higher carbohydrate intake, non-athletes have higher fat intake

• Endurance athletes have higher fat intake, non-athletes have higher protein intake

• Endurance athletes have higher protein intake, non-athletes have higher carbohydrate intake

• Endurance athletes have higher protein intake, non-athletes have higher fat intake

Tags

SEHS