CCEA A-Level Health and Social Care 0003
Promoting Quality Care
Communication in Health, Social Care and Early Years Settings
Health and Well-Being
Safeguarding Children
Adult Service Users
Holistic Therapies
Understanding the Physiology of Health and Illness
Applied Research
Body Systems and Physiological Disorders
Providing Services
Public Health and Health Promotion
Supporting the Family
Understanding Human Behaviour
Human Nutrition and Health
Human Nutrition and Health
Vitamins: functions, sources and deficiency
- 3 things to know
- A2 7
Overview
Difference between a water-soluble and a fat-soluble vitamin, three water-soluble vitamins and main function of thiamin.
What you need to know
Answer each one before you reveal it.
Distinguish retinol from beta-carotene and give a source of each.
How is vitamin D obtained, and what supplement does United Kingdom guidance suggest?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is the difference between a water-soluble and a fat-soluble vitamin?
Model answer
Water-soluble vitamins dissolve in water, are not stored in quantity and must be eaten regularly, while fat-soluble vitamins dissolve in fat and are stored in the liver and body fat.
- 2
Name three water-soluble vitamins.
Model answer
Thiamin, also called vitamin B1, cobalamin, also called vitamin B12, and vitamin C are all water soluble.
- 3
State the main function of thiamin.
Model answer
Thiamin is needed to release energy from carbohydrate and to keep the nervous system working normally.
- 4
Name three good sources of thiamin.
Model answer
Wholegrain and fortified breakfast cereals, pork, and peas and other pulses are good sources of thiamin.
- 5
Which deficiency disease results from a severe lack of thiamin?
Model answer
Beriberi results from a severe lack of thiamin, causing muscle weakness, nerve damage and, in some forms, heart failure.
- 6
State two functions of vitamin B12.
Model answer
Vitamin B12 is needed to form healthy red blood cells and to keep nerve tissue in good repair.
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