FUNCTIONING ORGANISMS.
01. Body systems.
Ian Anderson
Saint Ignatius College Geelong
MULTICELLULAR ORGANISMS.
Why do complex multicellular organisms like humans
need organ systems?
Source: http://www.bodymot...
SINGLE-CELLED ORGANISMS.
 Single-celled organisms
can carry out all their life
processes within the one
cell.
 Organisms...
MULTICELLULAR ORGANISMS.
 The cells of multicellular
organisms are not all in
direct contact with their
external environm...
MULTICELLULAR ORGANISMS.
 In order to obtain
nutrients, oxygen & other
substances and be able
to get rid of wastes the
ce...
LEVELS OF ORGANISATION.
Cells • form
Tissues • form
Organs • form
Organ
systems
• form
Organism
Source: http://encyclopedi...
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
Source: http://www.cakechooser.com/
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
 Circulatory system.
Source: http://www.cakechooser.c...
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
 Circulatory system.
 Respiratory system.
Source: ht...
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
 Circulatory system.
 Respiratory system.
 Excretor...
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
 Circulatory system.
 Respiratory system.
 Excretor...
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
 Circulatory system.
 Respiratory system.
 Excretor...
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
 Circulatory system.
 Respiratory system.
 Excretor...
ORGAN SYSTEMS.
What are our main organ
systems?
 Digestive system.
 Circulatory system.
 Respiratory system.
 Excretor...
BIBLIOGRAPHY.
Cash, S., Quinton, G., Tilley, C., & Craven, E. (2013).
Oxford Big Ideas. Science 8: Australian
Curriculum. ...
http://sickscience8.wikispaces.com/
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Functioning organisms - 01 Introduction to the organ systems of the human body.

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An introduction to the organ systems of humans for Year 8 science students.

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Functioning organisms - 01 Introduction to the organ systems of the human body.

  1. 1. FUNCTIONING ORGANISMS. 01. Body systems. Ian Anderson Saint Ignatius College Geelong
  2. 2. MULTICELLULAR ORGANISMS. Why do complex multicellular organisms like humans need organ systems? Source: http://www.bodymotsystems.com/
  3. 3. SINGLE-CELLED ORGANISMS.  Single-celled organisms can carry out all their life processes within the one cell.  Organisms are able to exchange substances directly with their external environment.  Nutrients & oxygen can be collected from the surrounding water.  Wastes can be got rid of directly into the water. Source: http://www.microscopy-uk.org.uk/mag/art97b/prointro.html
  4. 4. MULTICELLULAR ORGANISMS.  The cells of multicellular organisms are not all in direct contact with their external environment.  Not all body cells are able to exchange substances with the external environment.  They are therefore unable to obtain their own nutrients, oxygen & other substances needed for life processes, nor get rid of wastes. Source: http://www.wrecksite.eu/marine- species.aspx
  5. 5. MULTICELLULAR ORGANISMS.  In order to obtain nutrients, oxygen & other substances and be able to get rid of wastes the cells of multicellular organisms need a helping hand.  They need organ systems which together work to provide nutrients, oxygen, get rid of waste and lots more. Source: http://cartoons- picture.blogspot.com.au/2012/12/cartoon-coyote-pictures.html
  6. 6. LEVELS OF ORGANISATION. Cells • form Tissues • form Organs • form Organ systems • form Organism Source: http://encyclopedia.lubopitko-bg.com/
  7. 7. ORGAN SYSTEMS. What are our main organ systems?  Digestive system. Source: http://www.cakechooser.com/
  8. 8. ORGAN SYSTEMS. What are our main organ systems?  Digestive system.  Circulatory system. Source: http://www.cakechooser.com/
  9. 9. ORGAN SYSTEMS. What are our main organ systems?  Digestive system.  Circulatory system.  Respiratory system. Source: http://www.cakechooser.com/
  10. 10. ORGAN SYSTEMS. What are our main organ systems?  Digestive system.  Circulatory system.  Respiratory system.  Excretory system. Source: http://www.cakechooser.com/
  11. 11. ORGAN SYSTEMS. What are our main organ systems?  Digestive system.  Circulatory system.  Respiratory system.  Excretory system.  Reproductive system. Source: http://www.cakechooser.com/
  12. 12. ORGAN SYSTEMS. What are our main organ systems?  Digestive system.  Circulatory system.  Respiratory system.  Excretory system.  Reproductive system.  Nervous system. Source: http://www.cakechooser.com/
  13. 13. ORGAN SYSTEMS. What are our main organ systems?  Digestive system.  Circulatory system.  Respiratory system.  Excretory system.  Reproductive system.  Nervous system.  Muscular system. Source: http://www.cakechooser.com/
  14. 14. ORGAN SYSTEMS. What are our main organ systems?  Digestive system.  Circulatory system.  Respiratory system.  Excretory system.  Reproductive system.  Nervous system.  Muscular system.  Skeletal system. Source: http://www.cakechooser.com/
  15. 15. BIBLIOGRAPHY. Cash, S., Quinton, G., Tilley, C., & Craven, E. (2013). Oxford Big Ideas. Science 8: Australian Curriculum. Melbourne: Oxford University Press.
  16. 16. http://sickscience8.wikispaces.com/

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