Across
- 2. a group of similar cells that work together
- 4. reticulum an organelle that forms a maze of passage ways in which proteins and other materials are carried from one part of a cell to another
- 7. earths first cells
- 10. three different ones that allow you to change the magnification of the image
- 12. consisting of many cells
- 15. a thread like structure within a cells nucleus that contains DNA that is passed from one generation to the next
- 16. an organelle in the cells of plants and some other organisms that captures energy from sunlight and changes it to energy the cell can use to make food
- 18. the first scientist to conclude all animals are made up of cells
- 20. consisting of one cell
- 21. the first scientist to conclude that new cells are formed only by cells that already exist
- 22. knob you turn this to focus the specimen on low power
- 23. a small shaped organelle in the cytoplasm of a cell that produces protein.
- 24. the smallest unit of life in all living things
- 25. when the microscope is on medium power objective it magnifies ___x (write out the number)
- 28. you turn this to focus the specimen on high power
- 29. an organelle that contains chemicals that break down large food particles into smaller ones that can be used by the rest of the cell
- 30. the thick fluid region of a cell located inside of a cell membrane or between the membrane and nucleus
- 32. a way of learning about the natural world
- 33. the scientist that named cells and the first to discover them
- 35. where the ribosomes are made
- 37. this should be held when transporting the microscope
- 38. one of the most fundamental skills in using a microscope is to be able to____ what you see
- 39. the magnification written on the ocular lens (eyepiece) is ____x
- 40. cells come from other cells that already
Down
- 1. a large oval organ eel that contains the cells genetic material in the form of DNA that controls all of the cells activities
- 3. a sac like organelle at stores water food and other materials the cell may need(found only in plants)
- 5. the abbreviation for endoplasmic reticulum
- 6. membrane a thin flexible barrier that surrounds a cell and controls which substances pass into and out of a cell
- 8. the membrane that surrounds the nucleus
- 9. when the microscope is on medium power objective it magnifies __x
- 11. rod shaped organelle that convert energy into food molecules into energy the cell can use to function
- 13. a sac like organelle that stores water,food, and other materials
- 14. the part you place the slide on top of
- 17. the first scientist to discover living cells
- 18. prevent the glass from slipping
- 19. out the number)
- 25. tiny cell structures
- 26. controls the amount of light that reaches the specimen
- 27. an organelle in a cell that receives protein and other newly formed materials from the endoplasmic reticulum, packaged them and distributes them out of the cell
- 31. When the microscope is on low power objective it magnifies ____x( write out the number)
- 34. a rigid supporting layer that surrounds the wall of plants and some other animals
- 36. the scientist that concluded that every plant is made of cells