| A | B |
|---|
| Organism | A complete living thing |
| Specialization | when certain cells have a job to do |
| Cell | the smallest unit of life |
| DNA | the universal genetic code |
| Photosynthesis | the process of changing sunlight, carbon dioxide, and water into sugar and oxygen |
| Cellular Respiration | the process of changing oxygen and sugar into energy, water, and carbon dioxide |
| Chlorophyll | the green chemical that allows plants to absorb light |
| Chromosome | a tight coil of DNA |
| Nucleus | the control center or brain of the cell |
| Nucleolus | the dense inner region of the nucleus that creates proteins |
| Mitochondria | the power house of the cell, responsible for cellular respiration |
| Chloroplast | the solar panels of the cell, collect energy and convert it into sugar |
| Rough ER | holds ribosomes, produces lipids (fats) and assembles protein |
| Smooth ER | produces enzymes |
| Golgi Apparatus | packages and ships the proteins to where they are needed |
| Protein | important chemical that makes up cells and builds muscles |
| Ribosome | worker for the cell; produces protein; found free floating in the cytoplasm or attached to the rough er |
| Cell Wall | the large rigid structure that surrounds plant cells only |
| Cell Membrane | soft flexible membrane that surrounds all cells and regulates what enters and leaves |
| Vacuole | storage space for cells- very large in plants, very small in animal cells |
| Centriole | organelle used for cell reproduction; only in animal cells |
| Prokaryote | simplest type of cell; lacks a nucleus |
| Eukaryote | cells that have a nucleus and many organelles |
| Nuclear Membrane | tissue that surrounds the nucleus and regulates what leaves and enters |
| tissue | a group of cells of the same type working together |
| organ | a group of different tissues working together |
| organ system | a group of organs working together |
| enzyme | speed up or slow down chemical reactions |
| Robert Hooke | first person to see and name cells |
| Robert Brown | first person to realize that cells have interior parts- saw the nucleus |
| organelle | part of a cell with a specific job to do |
