Nutrients and a balanced diet

Worksheet: Nutrients and a balanced diet

Name:Class:

Answer the questions.

1. Which nutrient is the body's main source of energy?
   a) Carbohydratesb) Fibrec) Mineralsd) Vitamins
2. Which food is a rich source of starch?
   a) Butterb) Egg whitec) Orange juiced) Potatoes
3. What are proteins mainly needed for?
   a) Cleaning the bloodb) Dissolving foodc) Growth and repaird) Making bones hollow
4. Proteins are made up of small units called what?
   a) Amino acidsb) Fatty acidsc) Mineralsd) Simple sugars
5. Which job do fats do in the body?
   a) Build muscle fibresb) Carry oxygen in bloodc) Digest starchd) Store energy and insulate
6. Which mineral is needed for strong bones and teeth?
   a) Calciumb) Iodinec) Irond) Sodium
7. Which mineral is needed to make red blood cells?
   a) Calciumb) Ironc) Potassiumd) Sodium
8. Why is fibre important in the diet?
   a) It builds musclesb) It gives lots of energyc) It helps food move through the gutd) It makes bones hard
9. Scurvy is caused by a lack of which vitamin?
   a) Vitamin Ab) Vitamin Cc) Vitamin Dd) Vitamin K
10. What colour does iodine solution turn when starch is present?
    a) Blue-blackb) Brick redc) Cleard) Purple
11. Humans can survive for several weeks without water.
    a) Trueb) False
12. The human body can digest fibre to release energy.
    a) Trueb) False
13. Lack of vitamin D can cause weak bones (rickets).
    a) Trueb) False
14. Name one fruit that is rich in vitamin C and helps prevent scurvy.
15. Which solution do we use to test a food for starch?
16. What do we call a diet with the right amounts of all nutrients?