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Cells
Cells
18
Science
8th Grade
05/07/2007

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Term
Cancer
Definition
Disease in which some body cells grow and divide uncontrollably, damaging the parts of the body around them.
Term
Chemotherapy
Definition
Use of drugs to treat diseases such as cancer.
Term
Tumor
Definition
Mass of abnormal cells that develope when cancerous cells divide and grow uncontrollably.
Term
Mutation
Definition
Change in a gene or chromosome
Term
Replication
Definition
Process by which cells break down simple food molecules to release the energy they contain.
Term
Mitosis
Definition
Stage of the cell cycle during which the cell's nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell.
Term
Interphase
Definition
Stage of the cell cycle that takes place before cell division occurs.
Term
Cell Cycle
Definition
Regular sequence of growth and division that cells undergo.
Term
Chromosome
Definition
A doubled rod of condensed chromatin; contains DNA that carries genetic info.
Term
Cytokinesis
Definition
Final stage of the cell cycle, in which the cell's cytoplasm divides, distributing the organelles into each of the two new cells.
Term
Fermentation
Definition
Process by which cells break down molecules to release energy without using oxygen.
Term
Respiration
Definition
The process by which cells break down simple food molecules to release the energy they contain.
Term
Stomata
Definition
Small openings on the underside of a leaf through which oxygen and carbon dioxide can move.
Term
Stomata
Definition
Small openings on the underside of a leaf through which oxygen and carbon dioxide can move.
Term
Pigment
Definition
A colored chemical compound that absorbs light.
Term
Heterotroph
Definition
An organism that cannot make its own food.
Term
Photosynthesis
Definition
The process by which plants & some other organisms capture the energy in sunlight and use it to make food.
Term
Autotroph
Definition
An organism that makes its own food.
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