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Science
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cell : the basic unit of structure and function in living things
microscope : an instrument that makes small objects look bigger
cell theory : a widely accepted explanation of the relationship between cells and living things
cell wall : a rigid supporting layer that surrounds the cells of plants and some other organisms
cell membrane : a thin flexible barrier that surrounds a cell and control which substances pass into and out of the cell
nucleus : in cells, a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities
organelle : a tiny cell structure that carries out a specific function within the cell
ribosome : a small grain-shaped organelle in the cytoplasm of a cell that produces proteins
cytoplasm : the thick fluid region of a cell located inside the cell membrane or between the cell membrane and nucleus
mitochondria : rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions
endoplasmic reticulum : an organelle that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another
Golgi apparatus : an organelle in a cell that receives proteins and other newly formed material from the endoplasmic reticulum, packages them, and distributes them to other parts of the cell
vacuole : a sac-like organelle that stores water, food, and other materials
chloroplast : an organelle in the cells of plants and some other organisms that capture energy from sunlight and changes it to an energy from that cells can use in making food
lysosome : a cell organelle which contains chemicals that break down large food particles into smaller ones and that can be used by the rest of the cell
multicellular : consisting of many cells
unicellular : made of a single cell
tissue : a group of similar cells that perform a specific function
organ : a body structure that is composed of different kinds of tissues that work together
organ system : a group of organs that work together to perform a major function
element : a pure substance that cannot be broken down into other substances by chemical or physical means
compound : a substance made of two or more elements chemically combined in a specific ratio, or proportion
carbohydrate : an energy-rich organic compound, such as a sugar or a starch, that is made of the elements carbon, hydrogen, and oxygen
lipid : an energy-rich organic compound, such as a fat, oil, or wax, that is made of carbon, hydrogen, and oxygen
protein : large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
enzyme : a type of protein that speeds up a chemical reaction in a living thing
nucleic acid : a very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructions cells need to carry out all the functions of life
DNA : deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring
double helix : the shape of a DNA molecule
selectively permeable : a property of cell membranes that allow some to pass across it, while others cannot
passive transport : the movement of dissolved materials across a cell membrane without using cellular energy
diffusion : the process by which molecules move from an area of higher concentration to an area of lower concentration
osmosis : the diffusion of water molecules across a selectively permeable membrane
active transport : the movement of materials across a cell membrane using cellular energy
endocytosis : the process by which the cell membrane takes particles into the cell by changing shape and engulfing the particles
exocytosis : the process by which that vacuole surrounding particles fuses with the cell membrane, forcing the contents out of the cell
Science
Across:1. | a tiny cell structure that carries out a specific function within the cell | 4. | a type of protein that speeds up a chemical reaction in a living thing | 6. | a group of organs that work together to perform a major function | 7. | a widely accepted explanation of the relationship between cells and living things | 10. | deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring | 13. | the basic unit of structure and function in living things | 17. | consisting of many cells |
| 19. | large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur | 20. | a group of similar cells that perform a specific function | 21. | a very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructions cells need to carry out all the functions of life | 22. | a rigid supporting layer that surrounds the cells of plants and some other organisms | 23. | the process by which that vacuole surrounding particles fuses with the cell membrane, forcing the contents out of the cell | 24. | an organelle in the cells of plants and some other organisms that capture energy from sunlight and changes it to an energy from that cells can use in making food | 25. | a small grain-shaped organelle in the cytoplasm of a cell that produces proteins |
| | Down:1. | the diffusion of water molecules across a selectively permeable membrane | 2. | an energy-rich organic compound, such as a fat, oil, or wax, that is made of carbon, hydrogen, and oxygen | 3. | a cell organelle which contains chemicals that break down large food particles into smaller ones and that can be used by the rest of the cell | 5. | rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions | 7. | the thick fluid region of a cell located inside the cell membrane or between the cell membrane and nucleus | 8. | the process by which the cell membrane takes particles into the cell by changing shape and engulfing the particles | 9. | an organelle that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another |
| 11. | in cells, a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities | 12. | the shape of a DNA molecule | 14. | a sac-like organelle that stores water, food, and other materials | 15. | a body structure that is composed of different kinds of tissues that work together | 16. | a pure substance that cannot be broken down into other substances by chemical or physical means | 18. | made of a single cell |
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© 2014
PuzzleFast.com, Noncommercial Use Only
Science
Across:1. | a tiny cell structure that carries out a specific function within the cell | 4. | a type of protein that speeds up a chemical reaction in a living thing | 6. | a group of organs that work together to perform a major function | 7. | a widely accepted explanation of the relationship between cells and living things | 10. | deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring | 13. | the basic unit of structure and function in living things | 17. | consisting of many cells |
| 19. | large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur | 20. | a group of similar cells that perform a specific function | 21. | a very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructions cells need to carry out all the functions of life | 22. | a rigid supporting layer that surrounds the cells of plants and some other organisms | 23. | the process by which that vacuole surrounding particles fuses with the cell membrane, forcing the contents out of the cell | 24. | an organelle in the cells of plants and some other organisms that capture energy from sunlight and changes it to an energy from that cells can use in making food | 25. | a small grain-shaped organelle in the cytoplasm of a cell that produces proteins |
| | Down:1. | the diffusion of water molecules across a selectively permeable membrane | 2. | an energy-rich organic compound, such as a fat, oil, or wax, that is made of carbon, hydrogen, and oxygen | 3. | a cell organelle which contains chemicals that break down large food particles into smaller ones and that can be used by the rest of the cell | 5. | rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions | 7. | the thick fluid region of a cell located inside the cell membrane or between the cell membrane and nucleus | 8. | the process by which the cell membrane takes particles into the cell by changing shape and engulfing the particles | 9. | an organelle that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another |
| 11. | in cells, a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities | 12. | the shape of a DNA molecule | 14. | a sac-like organelle that stores water, food, and other materials | 15. | a body structure that is composed of different kinds of tissues that work together | 16. | a pure substance that cannot be broken down into other substances by chemical or physical means | 18. | made of a single cell |
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© 2014
PuzzleFast.com, Noncommercial Use Only