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1. All living things are composed of cells.
2. The cell is the basic functional unit of life.
3. Cells arise from pre-existing cells.
4. Cells carry genetic information in the form of DNA, which is passed from parent to daughter cell. |
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Definition
| The use of radioactive molecules to race and identify cell structures and biochemical activity. |
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| a means of stratifying mixtures by density by spinning it at high speeds. |
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Definition
| A group including bacteria and cyanobacteria. Simple, unicellular structure with an outer membrane, but no membrane bound organelles. The DNA is in the nucleoid region, as opposed to a nucleus. It is circular and other smaller rings of DNA, plasmids, may be be there. Plasmids replicate independently. |
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Term
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Definition
A group including bacteria and cyanobacteria. Simple, unicellular structure with an outer membrane, but no membrane bound organelles. The DNA is in the nucleoid region, as opposed to a nucleus. It is circular and other smaller rings of DNA, plasmids, may be be there. Plasmids replicate independently.
Ribosomes consist of subunits 30S and 50S. |
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| All multicellular and nonbacterial unicellular organisms are eukaryotic. Has membrane bound organelles, DNA organized into chromosomes, and bound in a Nucleus. |
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| Composed of a double phospho lipid bi-lair, the cell membran does many things: It provides protection. It controls the flow of material in and out of the cell. It helps to establish the electrochemical gradiant necessary for homeostatic processes. |
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Definition
| Controls the activity of the cell. It's surrounded by a double membrane called the nuclear membrane/envelope. This membrane has holes called nuclear pores. |
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