Animal cells

2. a cell organelle that helps make and package materials to be transported out of the cell.
7. the cytoplasmic network of protein filaments that plays an essential role in cell movement, shape, and division.
12. the movement of particles from regions of higher density to regions of lower density.
13. a substance that cannot be separated or broken down into simpler substances by chemical means.
14. an organelle found in plant and algae cells where photosynthesis occur.
15. a leaving thing any thang that can carry out life processes independently.
17. a molecule made up of subunits called nucleotides.
19. a cell organelle that contains digestive enzymes.
20. the smallest unit of an element that maintains the properties of that element.

1. the maintenance of a constant internal state in a changing environment.
3. a class of molecules that includes sugar,starches and fiber contains carbon hydrogen and oxygen.
4. the special, norma,l or proper activity of an organ or part.
5. a group of organs that work together to perform body functions.
6. a covalently bonded compound that contains carbon.
8. a fat molecule that has similar properties examples include oils,waxes, and steroids.
9. a group of similar cells that perform common function.
10. the diffusion of water through a semipermeable membrane
11. a fluid-filled vesicle found in the cytoplasm of plant cells or protozoans.
16. a cell organelle composed of RNA and protein synthesis.
18. a rigid structure that surrounds the cell membrane and provides support to the cell.