| A | B |
|---|
| diffusion | occurs when molecules of a substance move from an area of high concentration to an area of lower concentration |
| osmosis | the diffusion of water through a membrane |
| respiration | energy in a sugar molecule is released by this process |
| photosynthesis | the food making process of plants |
| cell | the basic unit of all living things |
| List the six life activities of all living things | nutrition, respiration, excretion, response or movement, growth, and reproduction |
| Robert Hooke | was the first scientist to use the term cell to describe the structures which make up cork |
| Anton van Leeuwenhoek | was the first scientist to see a one celled organism |
| reproduction | the process an organism goes through to make more of its own kind |
| wee beasties | the term Leeuwenhoek used to describe the one celled organisms he was seeing in his specimens |
| organism | any living thing |
| cytoplasm | cells are made mostly of this substance |
| How are plant and animal cell different? | Plant cells contain chlorophyll which absorbs sunlight, Plant cells also contain chloroplast which holds the chlorophyll, A plant cell has an outer covering called the cell wall which an animal cell does not have |
| cell membrane | allows substances to enter and leave the cell |
| cell wall | a stiff outer covering on a plant cell |
| chloroplast | where plant food is made; this organelle contains the chlorophyll |
| cytoplasm | contains all the organelles in the cell; most chemical reactions take place here |
| nucleus | the control center of the cell |
| mitochondria | the powerhouse of the cell - contain materials used for energy |
| vacuoles | sac-like storage spaces in the cell |
| lysosomes | necessary in intercellular digestion; eats bacteria |
| endoplasmic reticulum | provides a passageway for materials to move through the cell |
| ribosomes | produce proteins |
| golgi bodies | package proteins |
| Parts of the cell | You will have to label a cell's parts |
| protozoan | one celled microscopic animals |
| bacteria | the simplest most primitive type of cell |
| unicellular | one cell |
| multi cellular | more than one cell |
| cilia | hair like structures that act as tiny row boats to propel an organism through water |
| flagellum | a whip like structure used to propel an organism through water |
| pseudopod | A false foot or arm that extends out and then the rest of the body follows the false feet along. |
| equation for photosynthesis | Consult your notes on how to write this equation out using formulas. Carbon dioxide plus water yields sugars plus oxygen two |
| homeostasis | a perfect balance in cells |
| Cell theory | 1. All living organisms are composed of cells. 2. The cell is the basic unit of life. 3 Cells come from other pre-existing cells. |
| pores | the cell membrane contains pores or tiny holes which allow material to move into and out of the cell |
