| Term | Definition |
| cell wall | protects, gives structure to plant cells |
| cellulose | fiber in plant cell |
| cell membrane | a thin envelope that surrounds all cells; lets good stuff in, bad stuff out. |
| protoplasm | everything inside of the cell membrane |
| nucleus | directs all activities of the cell. (Brain of cell) |
| chromosomes | pass traits on to new cells |
| nucleolus | inside the nucleus that contains RNA |
| Nuclear membrane | surrounds the nucleus |
| cytoplasm | everything inside the cell accept the nucleus |
| Endoplasmic Reticulum | transport of proteins in the cell |
| ribosomes | makes the protein that travels on Endoplasmic Reticulum |
| mitochondria | power house of the cell, energy that burns glucose |
| vacuoles | store food and water until needed |
| lysosomes | break down and digest proteins |
| choloroplasts | chlorophyll used in photosynthesis where sugar is made. (Plant cells) |
| chlorophyll | green pigment in plants that absorbs light energy used to carry out photosynthesis |
| chromatin | the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins |
| diffusion | the process by which molecules move from an area of higher concentration to an area of lower concentration |
| mitosis | cell division |
| osmosis | diffusion of water through a selectively permeable membrane |
| organelle | a specialized part of a cell |
| Lactic Acid | waste product produced by Fermentation; causes muscles to be sore |
| Cell Theory | (biology) the theory that cells form the fundamental structural and functional units of all living organisms |
| Robert Hooke | English scientist who formulated the law of elasticity and proposed a wave theory of light and formulated a theory of planetary motion and proposed the inverse square law of gravitational attraction and discovered the cellular structure of cork and introd |
| Interphase | the period of the cell cycle during which the nucleus is not undergoing division, typically occurring between mitotic or meiotic divisions |
| cells, tissues, organs, systems, organisms | What are the five levels that make up a living thing? |
| metabolism | all of the chemical reactions that occur within an organism |
| respiration | the bodily process of inhalation and exhalation |
| What are the products of metabolism and respiration? | aerobic and anaerobic |
| reproduction | the sexual activity of conceiving and bearing offspring |
| metaphase | step two, chromosome line up in center forming equator |
| telephase | step four, nuclear membrane reforms. |
| prophase | step one, nuclear membrane breaks down; chromatin becomes chromosomes. The chromosomes and centrioles double, spindle fibers form. |
| anaphase | step three, chromosome pairs split. |
| centrioles | Located near the nucleus and help to organize cell division |
| Selectively Permeable | a property of cell membranes that allows some substances to pass through, while others cannot |
| metabolism is | the sum of the building up and breaking down activities in a cell. |
| respiration is | the process be which a cell releases energy from food. |
| aerobic and anaerobic | What are the two types of respiration? |
| aerobic | uses oxygen in respiration process. |
| anaerobic | does not use oxygen in respiration process. |
| we use what to make glucose? | oxygen |
| the products made during process are: | energy, CO2 and water |
| what is the percentage of water in the protoplasm? | 80% |
| mitosis | most cells reproduce in a process called |