click below
click below
Normal Size Small Size show me how
skill set 3 vocab
| Question | Answer |
|---|---|
| cytoplasm | jelly-like fluid inside the cell where organelles are suspended and chemical reactions occur |
| nucleus | control center of the cell that contains DNA and directs cell activities |
| DNA | genetic material that carries instructions for cell structure and function |
| centrosome | organelle that organizes spindle fibers during cell division |
| Golgi apparatus | organelle that modifies, sorts, and packages proteins for transport |
| vesicle | small membrane sac that transports materials within the cell |
| endoplasmic reticulum | membrane network that produces and transports proteins and lipids |
| ribosome | small structure where proteins are made |
| nuclear membrane | membrane that surrounds and protects the nucleus |
| cell membrane | selectively permeable barrier controlling what enters and leaves the cell |
| mitochondria | organelle that produces energy (ATP) for the cell |
| chloroplast | organelle in plant cells where photosynthesis occurs |
| cell cycle | series of events a cell goes through as it grows and divides |
| interphase | longest stage of the cell cycle when the cell grows and prepares for division |
| G1 phase | stage when the cell grows and carries out normal functions |
| S phase | stage when DNA is copied |
| G2 phase | stage when the cell prepares for mitosis |
| mitosis | division of the nucleus to form two identical nuclei |
| mitotic phase | phase when the nucleus divides and the cell splits |
| prophase | stage of mitosis when chromosomes condense and spindle fibers form |
| metaphase | stage of mitosis when chromosomes line up in the middle of the cell |
| anaphase | stage of mitosis when sister chromatids separate |
| telophase | stage of mitosis when two nuclei form |
| cytokinesis | division of the cytoplasm forming two daughter cells |
| cleavage furrow | indentation that forms during cytokinesis in animal cells |
| cell plate | structure that forms during cytokinesis in plant cells |
| checkpoint | control point that regulates the cell cycle |
| somatic cell | body cell that is not a reproductive cell |
| centromere | region where sister chromatids are joined |
| chromosome | structure made of DNA that carries genetic information |
| sister chromatid | one of two identical halves of a duplicated chromosome |
| spindle fibers | structures that move chromosomes during cell division |
| cancer | uncontrolled growth of abnormal cells |
| carcinogen | substance that can cause cancer |
| tumor | mass of abnormal cells |
| unicellular | organism made of a single cell |
| multicellular | organism made of many cells |
| stem cell | unspecialized cell that can develop into specialized cells |
| differentiation | process by which cells become specialized |
| differential gene expression | process where different genes are activated in different cells |