Station 1 Cell Structure and Function

Transcription

1 Station 1 Cell Structure and Function 1. What is the full name of the organelle that is abbreviated ER? Endoplasmic reticulum 2. What is the function of the ER? To turn DNA (blueprints) into protein (machines that make up the cell). 3. What are two structures plant cells have that animal cells do not? Cell wall, chloroplasts, and a single central vacuole are all valid answers. 4. Which cell structure breaks down materials for the cell? Lysosome 5. What does the nucleus contain? DNA 6. Why is what the nucleus contains so important? DNA tells the cell how to make things. Without these blueprints the cell cannot function. 7. Choose one other organelle (part of the cell) that has not been mentioned here. What is its function? Possible answers: -Golgi: sorts things, gets them where they need to go -Cytoskeleton: supports the cell, acts as the roads -Vacuole: holds water, transport -Mitochondria: generates energy for the cell ( power plant ) -Membrane: surrounds and protects the cell

2 Station 2 Cell Structure and Function Continued 8. What is one piece of evidence for viruses being alive? What is one piece of evidence for viruses not being alive? Alive: they are made of proteins and DNA, they act with a purpose. Not alive: cannot replicate or survive on their own. 9. What part of the cell do motor proteins (the walking machines in the movie) move along to transport goods? Cytoskeleton 10. Animal or plant? Plant 11. Animal or plant? Animal 12. Extra point: what is the name of the cell in problem #11? Neuron (nervous tissue) 13. Are bacteria cells usually larger or smaller than animal and plant cells? Smaller

3 Station 3 - Microscopy 14. What were the three things to remember when carrying a microscope? Hand under base, hold by the arm, carry close to your body. 15. Would you use the coarse adjustment knob or the fine adjustment knob to slightly adjust focus? Fine adjustment knob. 16. Why do we usually dye cells when we look at them under microscopes? Because cells don t have a lot of color and are clear normally. Makes them easier to see. 17. What is one thing that you have looked at under a microscope in this class? Answers vary. 18. Below draw what you see under the microscope. After your group is done lower the stage and prepare it for the next group. Answers vary.

4 Station 4 Diffusion and Osmosis 19. Diffusion is the movement of molecules from concentration to concentration. High // low 20. Assume that the membrane of the cell is permeable to particles (meaning they can go through it). What would happen to the particles in this situation? They would move into the cell. 21. Now assume that the membrane of the cell is NOT permeable to particles. What would happen to the water if it can pass through the membrane? The water would leave the cell. 22. If the cell in the above questions were an animal cell what would happen to it? It would shrink as the water left it. 23. In our dialysis lab did water flow toward or away from our red sugar solution? Toward. 24. Does more heat make diffusion happen faster or slower? Faster.

5 Station 5 Body Systems 25. What body system is responsible for controlling the body and sensing information? Nervous system. 26. What body system coordinates the usage of hormones? Endocrine system. 27. What is the integumentary system? Skin. 28. What system are your kidneys and bladder part of? Excretory system. 29. You are moving around this room from station to station, reading the papers and answering the questions. What are at least three different systems that you are using to do this? Nervous, skeletal, muscular are best answers; others could possibly be defended. 30. Do body systems work in isolation (alone)? No. 31. What are at least two body systems that work to protect you? What do they protect you from? Possible answers: -Integumentary: skin protects from pathogens (germs) -Immune: white blood cells and antibodies patrol your body looking for pathogens (germs) -Skeletal: bones support your body and protect organs from harm (impact)

6 Station 6 Body Systems Continued 32. What are the levels of organization in creatures? ( Organism is the largest) Cells -> Tissues -> Organs -> Organ systems 33. What type of tissue had smooth, skeletal, and cardiac versions? Muscle tissue. 34. What type of tissue is blood? Connective tissue. 35. (True/False) Organs are made of only one type of tissue. False. 36. What type of tissue was organized in tight groups (like soldiers in a line)? Epithelial tissue. 37. Why is this type of tissue organized this way? To keep things out of the body (tightly packed so they don t let things through). 38. Which level of organization is considered the smallest living unit of life? Cells. 39. Bonus: (True/False) According to cell theory all cells come from other cells. True.