| A | B |
|---|
| cell | membrane covered structure that contains all information necessary for life |
| tissue | a group of cells |
| organ | a group of tissues |
| organ system | a group of organs performing a specialized function |
| organism | any living thing |
| population | a group of the same kind or organisms, living in the same place |
| community | a group of populations |
| ecosystem | a community or organisms and their nonliving environment |
| unicellular | one cell |
| multicellular | many cells |
| terrestrial | an ecosystem on the land |
| aquatic | ecosystems found in water |
| Robert Hooke | first to look at cork cells |
| cork | soft material found in trees |
| Anton van Leeuwenhoek | found "animaalcules" in pond water |
| Theodor Schwann | German scientist who stated all animal tissues are made of cells |
| Rudolf Virchow | German doctor who said cells could not develop from anything except other cells |
| cell membrane | barrier between the inside of the cell and its environment |
| DNA | contains informatiion needed to make new cells |
| organelles | chemicals and structures that allow the cell to live, grow and reproduce |
| cytoplasm | cell fluid and almost anything in it |
| nucleus | organelle that contains DNA |
| prokaryotic | cells without a nucleus |
| eukaryotic | cells with a nucleus |
| bacteria | first type of cells on earth |
| prokaryotic cells | have circular DNA |
| eukaryotic cells | have linear DNA |
| cell wall | made of cellulose and gives support to a plant cell |
| ribosomes | smallest but most abundant organelles |
| proteins | made up of chemicals called amino acids |
| ER | makes lipids; intermal delivery system of the cell |
| mitochondria | has two membranes; powerhouse of the cell |
| chloroplast | energy converting organelle found in plants |
| Golgi complex | located close to cell membrane: process materials to be moved out of cell |
| lysosomes | digest food particles, wastes, cell parts and foreign material |
| large vacuole | found in plants; stores water |
| cell wall, chloroplasts and large vacuole | structues found only in plants |
| vesicles | membrane covered compartments |
| protein makers | ribosomes |
| Matthias Schleiden | German scientist who said all plant part are made of cells |
