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| Collections of cells adapted to perform a specific function |
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| A group of tissues designed to perform a specific function |
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| A collection of organs that work together to perform an overall function |
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| Any class of fat-related substances that contain phosphorus, fatty acids, and a nitrogen-containing component |
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| A compound that speeds the rate of a chemical process but is not altered by that process. Almost all enzymes are proteins |
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| The fluid and organelles (except the nucleus) in a cell |
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| Organelles that are the main sites of energy production in a cell. They contain the pathway for oxidizing fat for fuel among other metabolic pathways. |
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| An organelle bound by its own double membrane and containing chromosomes, the genetic information for cell protein synthesis and cell replication |
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| A single, large DNA molecule and its associated proteins; contains many genes to store and transmit genetic information |
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| A specific segment on a chromosome. Genes provide the blueprint for production of cell proteins |
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| The site of hereditary information in cells; DNA directs the synthesis of cell proteins |
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| The single stranded nucleic acid involved in the transcription of genetic information and translation of that information into protein structure |
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| Process by which genetic information stored as DNA within the nucleus is copied to RNA during protein synthesis |
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| Cytoplasmic particles that mediate the linking together of amino acids to form proteins; may exist freely in the cytoplasm or attached to endoplasmic reticulum |
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| Process by which genetic information copied onto RNA dictates the amino acid sequence to form a protein |
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| Use of DNA information on a gene to produce a protein. Thought to be a major determination of cell development |
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| endoplasmic reticulum (ER) |
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Definition
| An organelle composed of a network of canals running through the cytoplasm. Part of the endoplasmic reticulum contains ribosomes |
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| The cell organelle near the nucleus that processes newly synthesized protein for secretion or distribution to other organelles. |
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| Membrane-bound vesicles produced by the golgi complex; contain protein and other compounds to be secreted by the cell. |
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| A cellular organelle that contains digestive enzymes for use inside the cell for turnover of cell parts. |
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| A cell organelle that destroys toxic products within the cell |
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| adenosine triphosphate (ATP) |
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Definition
| The main energy currency for cells. ATP energy is used to promote ion pumping, enzyme activity, and muscular contraction. |
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| The surface cells that line the outside of the body and all the external passages within it. |
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| Protein tissue that holds different structures in the body together. Some body structures are made up of connective tissue-notably, tendons and cartilage. Connective tissue also forms part of bone and the nonmuscular structures of arteries and veins |
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| A type of tissue adapted to cantract to cause movement |
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| Tissue composed of highly branched, elongated cells that transport nerve impulses from one part of the body to another |
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| The fluid, extracellular portion of the circulating blood. This includes the blood serum plus all blood-clotting factors. In contrast, serum is the fluid that remains after clotting factors have been removed from plasma. |
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