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SingaporeCombined ScienceQuick questions
Biology: Plants and Nutrition
Quick questions on Human nutrition and a balanced diet explained: O-Level Combined Science
5short 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 is a balanced diet?Show answer
A balanced diet contains the right amounts of all the nutrients the body needs, in the right proportions. The components are:
What are food tests?Show answer
Standard tests identify the main nutrients by a colour change:
What is q1?Show answer
State the main function of carbohydrates and of proteins in the diet. [2 marks]
What is q2?Show answer
Name the reagent and the positive colour change for the test for starch. [2 marks]
What is q3?Show answer
Name one deficiency disease and the nutrient that is lacking. [2 marks]
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