Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Control of internal environment of living organisms. It is very important that the internal environment of living organisms is kept constant, as the cells inside the body need this constant environment to work efficiently, failure to do so could result in death. Therefore no matter what is happening in the external environment homeostasis keeps the environment around the cells the same. Examples of things that are controlled are respiratory gases (oxygen and carbon dioxide), pH, the concentration of nutrients and waste products, the concentration of salts and other small ions, the volume and pressure of blood plasma and temperature (humans sweat to lower body temperature). This regulation is called homeostasis (staying the same). Most of the body's homeostatic systems rely on negative feedback systems to resist change. In these systems there needs to be a detector which can measure the value that needs to be controlled. When the detector finds that the...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 147,309 others

OR

Receive email updates for this category

• Simply tell us your email address and receive a weekly Study Help Email for FREE
• Receive 3 FREE essay views with each email
• Get all the latest essays from Coursework.Info & discussion from TheStudentRoom.co.uk