Showing posts with label homeostasis. Show all posts
Showing posts with label homeostasis. Show all posts

Saturday, May 28, 2011

Methods in Biology by Leislie Samuel

Hi,

Watch the two videos below by Leslie Samuel teach characteristics of living things:
1-organisation
2-reproduction
3-growth and development
4-adjusting to the environment
5-adaptation and evolution




Part 2, Methods in biology:



cheers

Wednesday, June 10, 2009

Lesson 28: Homeostasis - maintaining a constant internal environment

Hi,
This is an important part of the pure biology syllabus.

This set of slides cover the following points to remember for exams:
  • definition of homoeostasis
  • water, salt, blood sugar, body temperature, controls
  • kidney, skin involvement in homoeostasis
  • urinary system, labels, annotations
  • kidney, labels, annotations
  • nephron labels, annotations
  • nephron, in detail, how it works
  • glomerulus, convoluted tubules, loop of Henle, collecting ducts
  • kidney dialysis in detail
  • anti diuretic hormone, how it controls volume of urine and blood pressure
  • skin, labels, annotations
  • responses to temperature
  • vaso dilation, constrictions, hair erector muscles, sweat glands involvement in homoeostasis
  • quiz, short questions




Cheers