Cell Structures and Functions

2. Basic unit of structure and function in living things
3. Control center of the cell
4. Any substance that cannot be broken down into simpler substances
7. A tiny cell structure that carries out a specific function within the cell.
8. The movement of materials through a cell membrane using cellular energy
11. Cell organelle filled with enzymes needed to break down certain materials in the cell
13. Energy-rich organic compound (fat, oil, wax) that's made of carbon, hydrogen, and oxygen.
14. Rod-shaped cell structures that convert energy in food molecules to energy the cell can use to carry out its functions
15. Small units that are linked together chemically to form large protein molecules
16. A jellylike fluid inside the cell in which the organelles are suspended.
17. A property of cell membranes that allows some substances to pass through, while others cannot
19. Compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body
21. A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food
22. Device that produces magnified images of structures that are too small to see with the unaided eye
24. Organelles that package cellular material and transport them within the cell or out of the cell
26. Specialized proteins that speed up chemical reactions
27. The diffusion of water through a selectively permeable membrane

1. Thin, flexible barrier around a cell; regulates what enters and leaves the cell
4. 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.
5. 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
6. Deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring.
9. Two or more elements that are chemically combined
10. The movement of materials through a cell membrane without using energy
12. Storage structures for food, water, minerals, waste
18. Ribonucleic acid; a nucleic acid that plays an important role in the production of proteins
20. Organelles made of protein and RNA that direct protein synthesis in the cytoplasm
23. Large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
25. The process by which molecules move from an area of higher concentration to an area of lower concentration