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Sciencech3vocab
Science chapter 3
Question | Answer |
---|---|
Organelle | One of several tiny structures within a cell |
Cell membrane | A flexible structure that protects and controls what goes in and out of a cell |
Cytoplasm | A jelly like substance found inside the cell that contains organelles |
Cell wall | The rigid outer layer that protects & supports plant cells |
DNA | The molecule that contains the genetic material of a cell |
Chromosome | A structure located in the nucleus that contains DNA |
Gene | A segment of DNA located on the chromosome that among other things, controls specific traits |
Trait | A characteristic that can be passed on to an organisms offspring |
Cell cycle | A series of events occurring during the life of a cell |
Interphase | The stage of cell growth occurring at the beginning of the cell cycle |
Mitosis | The stage of the cell cycle in which the cells nucleus divides in two |
Cytokinesis | The final stage of the cell cycle in which the cytoplasm divides |
Mutation | A change in the DNA sequence of a gene or chromosome |
Cancer | A disease caused by cells that go through uncontrolled cell division |