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Which one of the following is the basic unit of proteins?
A food was chemically tested with a solution that changed from yellow to blue/black? Which solution was the food tested with?
Glycerol and fatty acids make up which one of the following food molecules?
If a food is tested with ethanol and then water, what nutrient is the food being tested for?
Starch is an example of what type of food molecule?
Which food molecule is being tested for with heating and the use of a blue coloured solution?
All complex carbohydrates are made up of long chains of smaller molecules called
Which chemical food test involves a positive result of a cloudy white emulsion?
If glucose is present, which one of the following observations would occur?
yellow to blue colour change
blue to orange colour change
blue to purple colour change
brown to black colour change
Which one of the following is not one of the three main types of biological molecules that structurally make up cells?