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Cell theory: fundamental concept of biology that states all living things are composed of cells
Cell:basic unit of all forms of life
Cell membrane: thin, flexible barrier that surrounds all cells
Nucleus: the center of the atom which contains the protons and neutrons
Eukaryote: organisms whose cells contain a nucleus
Prokaryote: unicellular organism that lacks a nucleus
Ribosome: cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell
Endoplasmic Reticulum: internal membrane system found in eukaryotic cells
Tissue: a group of similar cells that perform a particular function
Organ: a group of tissue that work together to perform closely related functions
Organ System:group of organs that work together to perform specific function
Receptor: on or in a cell, a specific protein whose shape fits that of a specific molecular messenger, such as a hormone
Mitochondrion: cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use
Lipid Bilayer: flexible double layered sheet that makes up the cell membrane and forms a barrier between the cell and it's surroundings
Selectively Permeable: Property of biological membrane that allows some substances to pass across it while others cannot
Diffusion:process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated
Facilitated Diffusion: process of diffusion in which molecules pass through cell membrane channels
Aquaporin: water channel protein in a cell
Osmosis: diffusion of water through a selectively permeable membrane
Isotonic: when the concentration of two solutions is the same
Hypertonic: when comparing two solutions, the solution with the greater concentration of solutes
Osmotic Pressure: pressure that must be applied to prevent osmotic movement across a selectively permeable membrane
Homeostasis: relatively constant internal physical and chemical conditions that organisms maintain
Across:1. | process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated | 4. | cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell | 6. | a group of similar cells that perform a particular function | 7. | relatively constant internal physical and chemical conditions that organisms maintain | 8. | when the concentration of two solutions is the same | 9. | cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use | 10. | water channel protein in a cell | 12. | on or in a cell, a specific protein whose shape fits that of a specific molecular messenger, such as a hormone | 15. | organisms whose cells contain a nucleus | 16. | a group of tissue that work together to perform closely related functions | 17. | the center of the atom which contains the protons and neutrons | 18. | basic unit of all forms of life | 19. | flexible double layered sheet that makes up the cell membrane and forms a barrier between the cell and it's surroundings |
| | Down:2. | process of diffusion in which molecules pass through cell membrane channels | 3. | Property of biological membrane that allows some substances to pass across it while others cannot | 5. | pressure that must be applied to prevent osmotic movement across a selectively permeable membrane | 11. | group of organs that work together to perform specific function | 13. | unicellular organism that lacks a nucleus | 14. | fundamental concept of biology that states all living things are composed of cells |
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© 2012
PuzzleFast.com, Noncommercial Use Only
Across:1. | process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated | 4. | cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell | 6. | a group of similar cells that perform a particular function | 7. | relatively constant internal physical and chemical conditions that organisms maintain | 8. | when the concentration of two solutions is the same | 9. | cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use | 10. | water channel protein in a cell | 12. | on or in a cell, a specific protein whose shape fits that of a specific molecular messenger, such as a hormone | 15. | organisms whose cells contain a nucleus | 16. | a group of tissue that work together to perform closely related functions | 17. | the center of the atom which contains the protons and neutrons | 18. | basic unit of all forms of life | 19. | flexible double layered sheet that makes up the cell membrane and forms a barrier between the cell and it's surroundings |
| | Down:2. | process of diffusion in which molecules pass through cell membrane channels | 3. | Property of biological membrane that allows some substances to pass across it while others cannot | 5. | pressure that must be applied to prevent osmotic movement across a selectively permeable membrane | 11. | group of organs that work together to perform specific function | 13. | unicellular organism that lacks a nucleus | 14. | fundamental concept of biology that states all living things are composed of cells |
| |
© 2012
PuzzleFast.com, Noncommercial Use Only