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science chp-2
science
| Question | Answer |
|---|---|
| replication | the cell makes a copy of the DNA in it's nucleus |
| mitosis | is the stage during which the cells nucleus divides into new nuclei |
| interphase | is the period before cell division occurs |
| cytokinesis | completes the process of cell divison |
| chromosome | scientists call each doubled rod of condensed chromatin |
| chromatid | each identical rod, or strand, of the chromosome |
| DNA replication | this ensures that each daughter cell will have all of the genetic information it needs to carry out its activates |
| cell cycle | the regular sequence of growth and division that cells undergo |
| stomata | carbon dioxide enters the planet through small openings on the undersides of the leaves |
| fermentation | an energy-releasing process that does not require oxygen |
| autotroph | an organism that makes its own food |
| pigment | colored chemical compounds that absorb light |
| chlorophyll | the main pigment found in the chloroplasts of plants |
| comparing photosynthesis and respiration | these two things can be thought of as opposite processes |
| heterotroph | an organism that cannot make its own food |
| respiration | the process by which cells "withdraw" energy from glucose |
| photosynthesis | the process by which a cell captures the energy in sunlight and uses it to make food |