Biology B1 2.5 Controlling conditions. 0.0 / 5 ? BiologyNervous system, hormones and behaviourGCSEAQA Created by: Atlanta and JacobCreated on: 08-04-16 11:51 It is very important that the internal conditions of the body are kept within certain limits, what helps to do this? The nervous system and hormones. 1 of 9 What are carefully controlled within the body? Water and ion content, as well as temperature and blood sugar level. 2 of 9 How is water leaving the body all the time? Water leaves as we breathe out and sweat. 3 of 9 How is any excess water lost? In the urine (produced by the kidneys). 4 of 9 What is also lost in sweat and urine? Ions. 5 of 9 Why must we keep our temperature constant? So that the enzymes in the body work properly or otherwise they may not. 6 of 9 What is sugar in the blood? The energy source for cells. 7 of 9 What organ controls the level of sugar in our blood? The pancreas. 8 of 9 **TO IMPROVE YOUR GRADE MAKE SURE YOU UNDERSTAND WHY INTERNAL CONDITIONS SHOULD BE KEPT WITHIN VERY SMALL LIMITS*** ***LINK THE CONDITION TO THE REASON WHY IT MUST BE KEPT CONSTANT*** 9 of 9
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