1 TH I N K AB0UT IT ! Look at the circulatory system in the image above. Why do you think it covers the whole of the body? Respiration in cells In cellular respiration, nutrients combine with oxygen to produce the energy that the cells need. This process releases carbon dioxide. This gas enters the blood and it leaves the body through the respiratory system. Systems involved in nutrition The nutrition processes take place in different systems in our body. Respiration takes place in the respiratory system. Digestion takes place in the digestive system. Excretion takes place mainly in the urinary system. Circulation takes place in the circulatory system. A C D B cellular respiration EXPLAIN what nutrients are. 2 ●○○ MAKE a list of the processes that nutrition involves. 3 ●○○ ANSWER. Which system is responsible for each process in nutrition? COPY the diagram of the cell in your notebook. MATCH the letters to these words. 1 ●●○ 4 ●●○ energy oxygen carbon dioxide nutrients n i n e · 9
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