Animal Cells

4. A class of molecules that includes sugars, starches, and fiber; contains carbon,hydrogen, and oxygen
6. a molecule made up of subunits called nucleotides
8. A substance that cannot be separated or broken down into simpler substances by chemical means
9. The cytoplasmic network of protein filaments that plays an essential role in cell movement, shape, and division
12. A cell organelle that helps make and package materials to be transported out of the cell
13. A cell organelle composed of RNA and protein; the site of protein synthesis
14. An organelle found in plant and algae cells where photosynthesis occurs
15. The smallest unit of an element that maintains the properties of that element
17. A covalently bonded compound that contains carbon
19. A fluid-filled vesicle found in the cytoplasm of plant cells or protozoans

1. The maintenance of a constant internal state in a changing environment
2. A cell organelle that contains digestive enzymes
3. A collection of tissues that carry out a specialized function of the body
5. A living thing; anything that can carry out life processes independently
7. A rigid structure that surrounds the cell membrane and provides support to the cell
9. The theory that states that all living things are made up of cells, that cells are the basic units of organisms, that each cell in a multicellular organism has a specific job, and that cells come only from existing cells
10. A system of membranes that is found in a cells cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
11. A fat molecule that has similar properties;examples include oils, wax's, and steroids
16. A molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body
18. In eukaryotic cells, the organelle that is the site of cellular respiration, which releases energy for use by the cell