A-D Vocab Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Active Transport | The movement of molecules or ions against a concentration gradient (lower to higher concentration) and therefore requiring energy
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| Allele | One of the different forms in which a gene can occur.
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| Autosomal Chromosome | Any of the nonsex chromosomes
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| Carbon Fixation | The process of synthesizing sugars from carbon dioxide and water (Calvin cycle of photosynthesis)
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| Cell Cycle | The events in the life of a dividing cell consisting of G1, S, G2 and M phases.
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| Cell Wall | A structure in plant cells that surrounds the cell membrane, important for structure and protection. Also present in algae and certain bacteria
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| Cellular Respiration | The process in which carbon-rich sugar molecules react with oxygen to make useable energy for a cell. Occurs in heterotrophs and autotrophs
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| Chlorophyll | One of the photosynthetic pigments found in plant chloroplasts
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| Chloroplast | The structure in plants that contains chlorophyll and is the site of photosynthesis
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| Chromatin | Numerous strands of DNA coiled and bunched together; the individual strands that make up chromosomes
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| Chromosome | Any of the tubelike bodies within the nucleus containing DNA and protein. Carry the genetic code for individuals.
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| Codominance | A situation in which both alleles express themselves in an organism that is heterozygous for a trait
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| Codon | A three-base sequence on mRNA that tRNA uses to provide the correct amino acid
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| Control Group | In an experiment, a group of subjects identical to the experimental subjects except that the control group is not exposed to the independent variable
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| Controlled Variable | The factor in an experiment that remains constant while the independent variable is manipulated
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| Crossing Over | The exchange of genetic material between homologous chromosomes during meiosis I
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| Cytokinesis | The phase immediately following mitosis in which the cytoplasm divides to form two daughter cells.
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| cytoplasm | A combination of inorganic and organic substances outside the nucleus
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| Dependent Variable | The factor in an experiment that changes (or doesn't change) in response to the manipulated variable. It is sometimes called the responding variable.
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| cell theory | The idea that all living things are made of cells and that all cells come only from existing cells
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