Unit1: Organisation of Human Body

Presentation about the levels of organisation: cells, tissues, organs,etc.

1. Unit 1: The Organisation of the human body Learning objectives : Understand the levels of organisation of the human body . Recall the parts of a cell Recognise the main human tissues and their function Relate the different systems to their vital functions

2. 1. Organisation of living matter 1.2 Levels of Organisation

3. IN GROUPS OF 4 Take a piece of paper and design your diagram including the following sections : Subatomic level Atomic level Molecular level Cellular organelles Cellular level Tissues Organs Systems Human body 2. Cut and paste the drawings provided on your diagram 3. Explain one of the levels to the rest of the class . Group activity 15 minutes

4. Definitions (page 7) Cells are the basic structural and functional units that form our organism . A tissue is a group of cells of the same type and origin , which perform the same function . An organ is formed by different tissues that perform a particular function . A system is a group of organs that participate in one or more specific functions . An organism is formed by the ensemble of systems that function in a coordinated way . células tejido órgano sistema

5. 1.1 Definition of Human Being (page 6) They are living things : They are composed of biomolecules . They are made up of cells . They perform the three vital functions ( nutrition , interaction , reproduction ). They are animals : Multicellular . They are eukaryote cells . They are heterotrophic .

6. 2 . Cell structure Cells are the basic structural and functional units that form our organism . Cell domino in pairs Animal and plant cell videos YOUR TASK!!! Build your own model animal cell . Brainstorming : cell organelles and their function Names on the notebook

7. Ideas for your model animal cell Jello cell Clay cell http://www.wikihow.com/Make-a-Model-Cell Pizza cell crafts Label Organelles !!

8. 2.2 Exchange With the Environment Activity 7 page 8 in class

9. Mechanisms for going through the membrane A. Diffusion  free passage of small molecules . BUT: ALWAYS following the concentration gradient : from higher concentration to lower concentration

10. B. Osmosis  passage of water from the more diluted to the more concentrated medium Water molecules Any type of substance , such as glucose or salt Watch the animation : http://www.stolaf.edu/people/giannini/flashanimat/transport/osmosis.swf

11. solution solution solution

12. hypertonic hypotonic isotonic

13. C. Active transport  if the concentration of a substance is less in the exterior, but the cell needs it , the cell can use energy in order to bring it in. ATP = energy

14. D. Endocytosis and exocytosis  for incorporating or putting out big subtances that cannot go through the cell membrane . Small vesicles are formed . Activities 8, 9, 10 and 11 page 9

15. Exocytic vesicle Endocytosis

16. 3 . Tissues and Organs In the human body there are different types of cells . Cells specialise so that they can perform different tasks and different types of cells are created . DIFFERENTIATION : Process by which cells specialise .

17. Activities 12 and 13 page 10 Why do muscle cells have many mitochondria ? Why do glandular cells have a very developed Golgi apparatus ? Why do red blood cells do not have any organelles ? 5 minutes to answer these questions in pairs :

18. 3.2 Types of Tissues Epithelial tissue

19. Connective tissue Bone tissue Cartilaginous tissue Adipose tissue

20. Muscle tissue Nervous tissue Activity 17 page 11 Activities 20 and 21 page 12 Activity 23 13 page 13

21. 3.3 Organs

22. 4 . Systems ON YOUR NOTEBOOK : Classify the following systems depending on the vital function ( reproduction , nutrition or interaction ) they are involved with .

23. Nutrition Excretory system Digestive system Circulatory system Respiratory system Reproduction Male reproductive system Female reproductive system Interaction Nervous system Sense organs Skeletal and muscular system Endocrine system ALL THESE SYSTEMS INTERACT AND WORK TOGETHER IN A COORDINATED WAY

24. Pages 18 and 19: 38 40 41 42 45 50 52 READ AND UNDERSTAND SCIENCE ON YOUR NOTEBOOK IN PAIRS