Unit 3: Energy systems
Unit 3.1
Key learning
intention (KLI)
Success criteria
Resources
Key words
‘Progress
depends on
effort not
ability’
Nutrition
To understand the role of nutrients in the diet and how the needs of different athletes
different.
See below
Pages 51-62
Monosaccharide, disaccharide, polysaccharide, triaglycerol, amino acid, glycemic
index, fibre, condensation reaction, hydrolysis, fats, carbohydrate, protein.
You are sports scientists working for a pharmaceutical company that specialises in nutrition for elite
athletes. An athlete has come to you and asked you for 2 things;
•
The perfect daily diet plan for a training day (food)
•
What performance enhancing drugs are available that may help them in their quest for glory
By then end of this topic you must have produced a recommendation (document) that includes all the
information that the athlete needs in order to understand what to take (including dosage) and the expected
effects.
Good Luck
3.1.1
Macronutrient
Carbohydrate
List and outline the role of the macronutrients and micronutrients required by the body
Role
Fat
Protein
Water
Micronutrient
Vitamins
Minerals
Fibre
Role
Unit 3: Energy systems
‘Progress
depends on
effort not
ability’
3.1.3
State the chemical composition of a glucose molecule
3.1.4
Draw a diagram representing the basic structure of a glucose molecule
3.1.5
Explain how glucose molecules can combine to form disaccharides and polysaccharides.
Condensation reactions
monosaccharide
Monosaccharide
Disaccharide
Unit 3: Energy systems
Animal polysaccharides
SUMMARY QUESTIONS FOR CARBOHYDRATES
Name the carbohydrate type that when consumed in
excess contributes to diabetes
List 3 functions of carbohydrates in the body
1.
2.
3.
List 2 types of polysaccharides
1.
2.
Define hypoglycaemia and hyperglycemia
Give two benefits of exercise to an obese individual
1.
2.
Explain the difference between glycemic index and
glycemic load
Give an example of a food with a high fibre content
Write the chemical formula for glucose
3.1.6
State the composition of triacylglycerol (triglycerides).
‘Progress
depends on
effort not
ability’
Unit 3: Energy systems
Click on these video link to see how they are formed
3.1.7
Distinguish between saturated and unsaturated fatty acids.
Saturated
Unsaturated
3.1.8
Draw a diagram representing the basic structure of a lipid molecule.
3.1.9
3.1.10
State the chemical composition of a protein molecule.
Draw a diagram representing the basic structure of an amino acid.
‘Progress
depends on
effort not
ability’
Unit 3: Energy systems
3.1.11
Distinguish between an essential and a non-essential amino acid.
Essential amino acid
Non-essential amino acid
3.1.12
Macronutrient
Carbohydrate
Fat
Protein
Water
Salt
Describe the current recommendations for a healthy balanced diet.
Advice
‘Progress
depends on
effort not
ability’
Unit 3: Energy systems
‘Progress
depends on
effort not
ability’
Fibre
3.1.13
Carbohydrate
State the energy content per 100 g of carbohydrate, lipid and protein.
Lipid
Protein
3.1.14
Discuss how the recommended energy distribution of the dietary macronutrients differs
between endurance athletes and non-athletes.
Carbohydrate
Non-athlete
Athlete
Fat
Protein
Unit 3: Energy systems
‘Progress
depends on
effort not
ability’