Science Focus 2 - Chapter Tests - Pearson Australia Media Resources

Science Focus 2 TEST
Chapter 4: Body systems
22 Most oxygen is transported in the bloodstream
A bound to haemoglobin.
B as gaseous oxygen molecules.
C bound to platelets.
D as dissolved carbon dioxide molecules and hydrogen carbonate ions.
23 We need fibre because
A it contains large amounts of vitamins and minerals.
B it provides bulk which helps move substances through the digestive system.
C it is the major source of energy in foods.
D it is used for growth and repair.
24 Pasta, bread and rice are foods that are all rich in
A carbohydrates.
B proteins.
C fats.
D vitamin C.
25 Which of the following diseases is caused by a lack of vitamins?
A Hepatitis C.
B AIDS.
C Scurvy.
D Polio.
26 Which two of the following are minerals?
A Calcium.
B Potassium.
C Folic acid.
D Riboflavin.
27 From which one of the following categories should you have most serves each
day for a healthy diet?
A Vegetables.
B Meat and meat alternatives.
C Breads and cereals.
D Milk and milk products.
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