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SingaporeCombined ScienceQuick questions
Biology: Plants and Nutrition
Quick questions on Nutrients and a balanced diet: N(A)-Level Combined Science Biology
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are the main nutrient groups?Show answer
A healthy diet provides several nutrient groups, each with a job:
What is a balanced diet?Show answer
A balanced diet contains all these nutrient groups in the right proportions for a person's needs. Eating too much energy food (carbohydrates and fats) without using it can lead to becoming overweight, while too little of a nutrient can cause a deficiency. Needs change with age, sex and how active a person is.
What are the food tests?Show answer
You should know four tests, each with its reagent and positive colour change:
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