Curriculum
Course: Science — Second Preparatory
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Curriculum

Science — Second Preparatory

Unit 1: Matter and Energy

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Unit 2: Matter and Chemical Reactions

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Unit 3: Energy Flow in Photosynthesis and Respiration

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Unit 4: Geological Processes

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Quiz

Chemistry of Nutrition — Lesson quiz

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  • Questions count: 6
  • Passing grade: 60%
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1.
Which nutrient gives the most energy per gram?
Carbohydrates, which give 9 kcal per gram
Proteins, which give 20 kcal per gram
Fats, which give 9 kcal per gram
Vitamins, which give 0 kcal per gram
2.
What happens to iodine solution when it is added to starch?
It turns red
It turns pale green
Its colour does not change at all
It turns blue-black
3.
What is the function of proteins in the body?
To build tissues and muscles and replace damaged parts
To provide only instant energy
To store water in cells
To form fibre that regulates digestion
4.
Which disease in children is caused by a lack of vitamin D?
Scurvy
Rickets
Night blindness
Anaemia
5.
Calculate the energy supplied by 50 g of carbohydrates.
450 kcal
50 kcal
200 kcal
25 kcal
6.
Why does a lack of iron in the diet cause anaemia?
Because iron increases calcium production in the blood
Because a lack of iron raises the oxygen level in the blood
Because iron turns blood into a clear liquid
Because iron is needed to make haemoglobin, so the blood carries less oxygen
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