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23 Cards in this Set
- Front
- Back
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Cell Cycle |
The Regular Sequence of growth and division that cells undergo |
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Interphase |
First Part of Cell Cycle, Made up of Gap 1 Gap 2 and synthesis, DNA is replicated in synthesis |
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Mitosis |
The stage during which the nucleus divides into two new nuclei, made up of 4 parts |
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Prophase |
Chromatin condenses to form chromosomes, centrioles move to opposite ends of the cell, spindle fibers form abridge between two centrioles, nuclear envelope breaks down |
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Metaphase |
chromosomes line up, spindle fibers attatch to the centromeres |
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Anaphase |
centromeres split, chromatids become new chromosomes, new chromosomes move to opposite ends of cell with equal amount on each side, cell starts to stretch out |
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Telophase |
chromosomes start to stretch out and lose rod like appearance, new nuclear envelopes form to surround new chromosomes |
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Cytokinesis |
cytoplasm is divided and cell membrane pinches into the middle to split cell into two new daughter cells, in plants, a cell plate is formed that becomes cell membrane and then cell wall grows |
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Chromosomes |
A doubled rod of condensed chromatin |
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Chromatid |
Two individual parts of a chromosome |
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Cromatin |
Uncondensed chromosome |
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Centriole |
cylindrical organele, carries spindle fibers and moves to poles of cell |
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Centromere |
Holds two sister chromatids together to form chromosome |
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Spindle Fiber |
attach to centrioles and centromeres |
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Differentiation |
The process by which cells change their structure and become capable of carrying out specialized functions |
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During development |
cells become fixed or set in how they will differentiate |
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Differentiation occurs when |
certain sections in the DNA are turned off. the active DNA guides how the cell develops |
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Stem Cells |
Human cells that can differentiate throughout life, respond to certain needs of the body by becoming specialized when needed. |
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One of the stem cell functions |
releasing a steady supply of blood cells |
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what to human cells lose the ability to do once they differentiate |
the ability to become other types of cells (Ex:Lizard grows a new tail) |
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Adenine goes with |
Thymine |
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Guanine goes with |
Cytosine |
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nitrogen bases make the _______ ladder |
DNA |
