1) Name the blood vessel that takes the blood away from the heart  2) Name the blood vessel that brings blood back to the heart  3) What happens in the small intestine ? 4) Explain why glucose can escape the visking tubing but starch can’t  5) Name the blood vessel that allows oxygen to enter the blood stream and carbon dioxide exit (next to the alveolus) 6) What apparatus would be used to diagnose asthma ? 7) What piece of apparatus would be used to listen to a heat beat ? 8) What muscle helps you to draw in air to your lungs ? 9) What gas do cells need to live ? 10) What does the cardiovascular system do ? 11) What does the respitory system do ? 12) What does the digestive system do ? 13) What do valves do in the heart and veins ? 14) Is blood in veins oxygenated or deoxygenated ? 15) Is blood in arteries oxygenated or deoxygenated ? 16) What is the function of red blood cells ? 17) What is the function of platelets in the blood ? 18) What colour does benedict's solution turn if glucose is present ? 19) What colour does iodine turn if starch is present ? 20) What is the function of the immune system ? 21) Describe a way the body defends itself against infections  22) What do enzymes do ? 23) Organise the following from smallest to largest; (tissue, organ system, cells, organs) 24) Why do we wear masks ? 25) Give 3 organs that are part of the digestive system 26) Give 3 organs that are part of the respatory system  27) Give 3 organs that are part of the cardiovascular system 28) How do nutrients from digested food enter the blood stream ?

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