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Lesson 2-1 “Cell Structures”
1. A cell is the “smallest unit” capable of performing ______________ ____________________ (a cell is called the basic unit of all living things) 2. Cells come in many __________________and ________________. 3. Most are too small to be seen without a ___________________________. 4. We have about ____________ different types of cells in our body and about _____________________ in all. Each type is _______________________________ to do a particular _______________ (function). 5. The ________________ and __________________ of a cell relates to its _______________________. 6. Name some examples of types of cells found in our body: 7. Any living thing is known as an __________________________, including ___________________________. 8. What is the difference between a unicellular organism and a multicellular organism? 9. Cells cannot ____________________________________________________. Must be in a group to ________________________. 10. Cells are either ___________________________ or _________________________________. 11. Prokaryotes lack a ______________________ and membrane-­‐covered ________________________ BUT Eukaryotes DO HAVE a ____________________________ and membrane-­‐covered _________________________________. 10. Name the three basic types of cells: a) ____________________________________ b) __________________________________ c) _________________________________ Basic Parts of All Cells 11. The cell membrane is the _______________________________ around cells. 12. It controls the passage of ____________________ into and out of the cell. This includes ______________________ ____________________________________________________________________________________. 13 The cell membrane is found just inside the outer _________________ _______________ in ____________________ cells. 14. What does selectively permeable mean? 15. The cytoplasm is the _________________________________ that holds the cell’s ________________________. 16. The organelles contain all the ___________________ and _____________________ that enable the cell to __________ __________________________________________________________. They are located in the _________________________. 17. All cells have organelles, but not necessarily the same kind (True?/False). 18. Some organelles are surrounded by _______________________ and some are not. 19. All cells have ______________ which contains the “instructions” for all the cell’s activities. * deoxyribonucleic acid Chapter 2-1 Notes Guide (B) Modified
Cell Structure
1. ____________ are the basic unit of all living things. If it’s living, it is made of cells! 2. Cells come in many __________________and ________________. 3. Most are too small to be seen without a ___________________________. 4. We have about ____________ different types of cells in our body and about _____________________ in all. Each type is ________________________ to do a particular __________________. 5. Name some examples of types of cells found in your body. 6. Any living thing is known as an __________________________, including ___________________________. 7. Unicellular organisms have __________________________. Multicellular organisms have ________________________. 8. Cells may be ___________________________ or _________________________________. 9. Prokaryotes lack a ______________________ and membrane-­‐covered ________________________ BUT Eukaryotes DO HAVE a ____________________________ and membrane-­‐covered _________________________________. 10. Name the three basic types of cells? a) _______________________________________ b) __________________________________ c) _________________________________ Basic Parts of All Cells 11. The cell membrane is the _______________________________ around cells. 12. The cell membrane controls the passage of ____________________ into and out of the cell. 13. The cytoplasm is the _________________________________ that holds the cell’s ________________________ 14. All cells have organelles, but not necessarily the same kind (True?/False). 15. Some organelles are surrounded by _______________________ and some are not. 16. All cells have _______________which contains the “instructions” for all of the cell’s activities. *DNA = deoxyribonucleic acid