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Chapter 2 test vocab

Chapter 2 vocab

Photosynthesis The process by which plants and some other organisms capture the energy in sunlight and use it to make food.
Pigment A colored chemical compound that absorbs light
Chlorophyll green pigment found in the chloroplasts of plants, algae, and some bacteria
Stomata Small openings on the underside of a leaf through which oxygen and cabon dioxide can move.
Heterotroph An organism that cannot make its own food.
Autotroph An organism that makes its own food.
Respiration The process by which cells break down simple food molecules to release the energy they contain.
Fermentation The process by which cells break down moelcules to release energy without using oxygen.
Cell Cycle The regular sequence of growth and division that cells undergo.
Interphase The stage of the cell cycle that takes place before cell division occurs; during this stage, the cell grows, copies its DNA and prepares to divide.
Replicaation The process by which cells make a copy of the DNA and its neclus.
Mitosis The stage of the cell cycle during which the
Chromosome A doubled rod of condesened chromatin; contains DNA that carries genetic information.
Chromatid One of the identical rods of a chromosome.
Cytokinesis The final Stage of the cell cycle , in which the cell's cytoplasm divides, distribution organelles into each of the new cells.
Cancer A disease in which some body cells grow and divide uncontrollably , damageing the parts of the body around.
Mutation A change in a gene or chromosomes.
Tumor A mass of abnormal cells that develops when cancerous cells divide and grow uncontrollably.
Chemothearpy The use of drugs to kill cancer cells.
Created by: kkatepinklover