How do simple and complex carbohydrates differ in the way they release energy?

Simple carbohydrates, such as sugars, release energy quickly. Complex carbohydrates, such as starch in pasta, release energy slowly over a longer time.

What is the main function of protein, and which foods provide it?

Protein is used for the growth and repair of muscle and other body tissues. Meat, fish, eggs and beans are good sources.

Why does a weightlifter need more protein than an inactive person?

Heavy training causes tiny tears in muscle fibres, which protein helps to repair. Extra protein also supports the growth of larger, stronger muscles.

OCR GCSE Physical Education J587

Applied Anatomy and Physiology

Topic overview Bones and functions of the skeleton Synovial joints and the movements they allow Major muscle groups and antagonistic pairs The cardiovascular system The respiratory system and gas exchange Aerobic and anaerobic exercise Short-term effects of exercise Long-term effects of exercise

Movement Analysis

Topic overview Lever systems and mechanical advantage Planes and axes of movement

Physical Training

Topic overview Components of fitness Fitness tests and fitness data Collecting and presenting data Principles of training FITT and training zones Training methods Warm-ups and cool-downs Preventing injury and sports hazards

Socio-Cultural Influences

Topic overview Participation in physical activity and sport Participation trends in England Commercialisation, the media and sponsorship Sportsmanship, gamesmanship, deviance and violence Drugs in sport

Sports Psychology

Topic overview Skilful movement and the classification of skills Goal setting and SMART targets Mental preparation Types of guidance Types of feedback

Health, Fitness and Well-Being

Topic overview Health, fitness and the physical benefits of exercise Emotional and social benefits of activity Components of a balanced diet Diet, hydration and energy use

Health, Fitness and Well-Being

Components of a balanced diet

3 things to know
J587/02

Overview

A balanced diet and the roles of carbohydrates, proteins, fats, minerals, vitamins, fibre and water, with the needs of weightlifters and endurance athletes.

What you need to know

Answer each one before you reveal it.

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Key term

What is a balanced diet?

Key term

What is the main role of carbohydrates in the diet?

Key term

Name three good sources of complex carbohydrates.

Questions from this subtopic

Each one with the model answer underneath.

1
What is a balanced diet?
Model answer
A balanced diet contains the right amounts of each nutrient, plus fibre and water, to meet the body's needs.
2
What is the main role of carbohydrates in the diet?
Model answer
Carbohydrates are the body's main source of energy, especially during intense exercise. The body stores them as glycogen in the muscles and liver.
3
Name three good sources of complex carbohydrates.
Model answer
Pasta, rice and wholemeal bread are good sources of complex carbohydrates.
4
How do simple and complex carbohydrates differ in the way they release energy?
Model answer
Simple carbohydrates, such as sugars, release energy quickly. Complex carbohydrates, such as starch in pasta, release energy slowly over a longer time.
5
What is the main function of protein, and which foods provide it?
Model answer
Protein is used for the growth and repair of muscle and other body tissues. Meat, fish, eggs and beans are good sources.
6
Why does a weightlifter need more protein than an inactive person?
Model answer
Heavy training causes tiny tears in muscle fibres, which protein helps to repair. Extra protein also supports the growth of larger, stronger muscles.

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Applied Anatomy and Physiology

Movement Analysis

Physical Training

Socio-Cultural Influences

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