| A | B |
|---|
| active transport | the movement of materials through a cell membrane using energy |
| cell cycle | the regular sequence of growth and division that cells undergo |
| chlorophyll | a green pigment found in the chloroplasts of plants, alae, and some compounds |
| cytokensis | the final stage of the cell cycle, in which the cell's cytoplasm divides, distributing the organelles into each of the two new cells |
| diffusion | the process by which molecules move from an area in which they are highly concentrated to an area in which they are less concentrated |
| fermentation | the process by which cells breakdown molecules to release energy without using oxygen |
| interphase | the stage of the cell cycle that takes place before cell division occure; during this stage, the cell grows, copies its DNA, and prepares to divide |
| chromatid | one of the identical rods of a chromosome |
| mitosis | the stage of the cell cycle during which the cell's nucleus divides into two new nuclei, and one copy of the DNA is distributed into each daughter cell |
| osmosis | the diffusion of water molecules through a selectively permeable membrane |
| passive transport | the movement of materials through a cell membrane without using energy |
| photosynthesis | the process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water |
| replication | the process by which a cell makes a copy of the DNA in its nucleus |
| respiration | breakdown simple food molecules to release the energy |
| selectively permeable | a property of cell membranes that allows some substances to pass through, while others cannot |
