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Cells and Systems Notes Topic 1 1. What are five characteristics that living things share in common? 2. What is the basic unit of all living things? Topic 2 3. Who created the first microscope? 4. What are the two parts of the Cell Theory? 5. What are the two types of microscopes and tell me which is the most powerful? Topic 3 6. Give me two examples of the following: a. Single Celled organisms – b. Multi Celled organisms - 7. What are two differences each between single celled and multi celled organism? 8. What are the parts of a cell called? 9. What 2 parts of a plant cell aren’t found in an animal cell and explain why they aren’t found in animal cells? 10. Explain why cells are small and not big. You should be able to come up with at least two reasons why. 11. When an organism gets bigger, do its cells get bigger or does it add more cells? Explain why you gave the answer you gave. Topic 4 12. Explain how fluids move in and out of a cell membrane (be sure to mention osmosis and diffusion in your explanation)? Also be sure to explain where concentrations of nutrients and wastes are higher/lower. 13. Explain what diffusion is. 14. Explain what osmosis is. Topic 5 15. Name three specialized cells and also give their shape and function. Cell Shape Function 16. Give three advantages of being a multi-celled organism. 17. Explain how multi-celled organisms are organized by putting the following things in order: organs, cells, organisms, tissue, systems Topic 6 18. Choose one of the following body systems and name the main parts of that system and what each part does: Nervous system (3 marks), Excretory system (4 marks), Respiratory system (7 marks), Circulatory system (4 marks). 19. Digestive System: Put the following organs of the digestive system in order and match the function to the correct organ. _____ Small Intestine (a) ____ Where food enters the digestive system _____ Mouth (b) ____ Peristalsis helps move the food along here _____ Rectum (c) ____ Where feces leaves the body _____ Salivary Glands (d) ____ This is where most of the food is absorbed _____ Esophagus (e) ____ Enzymes here help break down carbohydrates _____ Stomach (f) ____ Feces is stored here before it leaves the body _____ Anus (g) ____ Water is absorbed here and feces are excreted here _____ Large Intestine (h) ____ Food is bathed in acid and broken down here Topic 7 20. What are two functions of blood? 21. Match the following: A. Red Blood Cells ____ Helps stop bleeding by forming clots B. Plasma ____ Defends body against infections C. Platelets ____ Liquid portion of blood that carries nutrients, waste products and blood cells ____ Carries oxygen D. White Blood Cells 22. Fill in the following chart: How to keep this system healthy Digestive System Respiratory System Circulatory System Name two common disorders of this system