Plant and Animal cells

2. a small grain-like structure in the cytoplasm of a cell where proteins are made
4. energy-rich organic compound,such as fat, oil, or wax thatis made of carbon, hydrogen, and oxygen
9. a cell structure that forms passageways in which proteins and other materials are carried through the cell
14. a tiny cell structure that carries out a specific function within a cell
15. any substance that cannot be broken down into simpler substances
16. a sac inside a cell that acts as a strong area
17. a protein that speeds up chemical reactions in a living thing
19. an energy-rich organic compound made of the elements carbon, hydrogen, and oxygen
20. acid a small molecule that is linked chemically to other amino acids to form proteins

1. a protein "framework"inside a cell that gives the cell shape
3. a rigid layer of nonliving material that surrounds the cells of plants and some other organisms
5. large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
6. a structure in the cells of plants and some other organisms that captures energy from sunlight
7. the outside cell boundary that controls which substances can enter or leave the cell
8. the control center of a eukaryotic cell that directs the cells activities
10. a small, round cell structure containing chemicals that break down large food particles into smaller ones
11. rod-shaped cell structures that convert energy in food molecules to energy the cell can use to carry out its functions
12. the material within a cell apart from the nucleus
13. two or more elements that are chemically combined
18. a structure in a cell that receives proteins and other newly formed materials from the endoplasmic reticulum, packages them and distributes them