Where are amino acids deaminated and converted into urea?

14.4.1 Define homeostasis as the maintenance of a constant internal environment

14.4.2 Name and identify on a diagram of the skin: hairs, hair erector muscles, sweat glands, receptors, sensory neurones, blood vessels and fatty tissue

14.4.3 Describe the maintenance of a constant internal body temperature in humans in terms of insulation, sweating, shivering and the role of the brain (limited to blood temperature receptors and coordination)

14.4.4 Explain that homeostasis is the control of internal conditions within set limits

14.4.5 Explain the concept of control by negative feedback

14.4.6 Describe the control of the glucose concentration of the blood by the liver and the roles of insulin and glucagon from the pancreas

14.4.7 Outline the symptoms and treatment of Type 1 diabetes (detail of β cells is not required)