单词 | cell organelle |
释义 | cell organelle (extremely rare) n WORD FAMILY cell organelle USAGE EXAMPLESShade-loving Begonia plants have iridescent blue leaves as a result of a cell organelle that allows them to efficiently harvest light in low-light conditions. Nature(Oct 25, 2016) n a specialized part of a cell; analogous to an organ Syn|Hypo|Hyper cell organ, organelle cilium a hairlike projection from the surface of a cell; provides locomotion in free-swimming unicellular organisms lysosomean organelle found in the cytoplasm of most cells (especially in leukocytes and liver and kidney cells) cell nucleus, karyon, nucleusa part of the cell containing DNA and RNA and responsible for growth and reproduction nucleole, nucleolusa small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis chondriosome, mitochondrionan organelle containing enzymes responsible for producing energy centrioleone of a pair of small cylindrical cell organelles near the nucleus in animal cells; composed of nine triplet microtubules and form the asters during mitosis ribosomean organelle in the cytoplasm of a living cell; they attach to mRNA and move down it one codon at a time and then stop until tRNA brings the required amino acid; when it reaches a stop codon it falls apart and releases the completed protein molecule for use by the cell pronucleusthe nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote sarcosomea large mitochondrion in a striated muscle fiber subthalamic nucleusan oval mass of grey matter located in the caudal part of the subthalamus; associated with the striate body organ a fully differentiated structural and functional unit in an animal that is specialized for some particular function |
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