Homeostasis 0.0 / 5 ? BiologyHomeostasisNervous system, hormones and behaviourGCSEAQA Created by: --hAnNAh--Created on: 11-04-14 10:18 How does the water content in the blood change? Breathing out, sweating, urine. 1 of 15 How is the water content in the blood controlled? The kidneys control water lost in the urine. 2 of 15 Which hormone is used by the kidneys to control the water lost in the urine? ADH. 3 of 15 Why is the water content in the blood controlled? All body cells contain water in the cytoplasm, water makes up 70% of the body. 4 of 15 How does the ion content in the blood change? Sweat, urine. 5 of 15 How is the ion content in the blood controlled? Kidneys control ions in the urine. 6 of 15 Why is the ion content in the blood controlled? They are important for body processes. 7 of 15 Give an example of a use of an ion? Sodium ions are important for the nervous system. 8 of 15 How does body temperature change? Chemical reactions such as respiration release heat energy. 9 of 15 How is body temperature controlled? Sweat. 10 of 15 Why is body temperature controlled? So that enzymes can work at their best rate. 11 of 15 How / when do blood sugar levels change? They rise when we eat. 12 of 15 How are blood sugar levels controlled? Insulin reduces blood sugar levels. 13 of 15 Why are blood sugar levels controlled? So body cells get a constant glucose supply for respiration. 14 of 15 What is meant by the term 'homeostasis'? Bodily functions that aim to maintain a constant internal environment. 15 of 15
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