Across
- 1. Specialized proteins that speed up chemical reactions
- 2. Deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring.
- 4. A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food
- 6. Organelles made of protein and RNA that direct protein synthesis in the cytoplasm
- 7. A jellylike fluid inside the cell in which the organelles are suspended.
- 8. Compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body
- 9. The diffusion of water through a selectively permeable membrane
- 11. Two or more elements that are chemically combined
- 12. Thin, flexible barrier around a cell; regulates what enters and leaves the cell
- 13. A property of cell membranes that allows some substances to pass through, while others cannot
- 17. Energy-rich organic compound (fat, oil, wax) that's made of carbon, hydrogen, and oxygen.
- 19. Device that produces magnified images of structures that are too small to see with the unaided eye
- 21. The process by which molecules move from an area of higher concentration to an area of lower concentration
- 22. Ribonucleic acid; a nucleic acid that plays an important role in the production of proteins
- 25. The movement of materials through a cell membrane using cellular energy
- 26. A tiny cell structure that carries out a specific function within the cell.
- 27. Storage structures for food, water, minerals, waste
Down
- 1. A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
- 3. Rod-shaped cell structures that convert energy in food molecules to energy the cell can use to carry out its functions
- 5. Organelles that package cellular material and transport them within the cell or out of the cell
- 10. Any substance that cannot be broken down into simpler substances
- 14. Basic unit of structure and function in living things
- 15. The movement of materials through a cell membrane without using energy
- 16. Small units that are linked together chemically to form large protein molecules
- 18. Cell organelle filled with enzymes needed to break down certain materials in the cell
- 20. Idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
- 23. Large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
- 24. Control center of the cell