The term metabolic is often used to refer specifically to the breakdown of food and its transformation into energy. Entodiniomorphida from turkish domestic cattle, bos taurus taurus. It controls the nonreproductive cell functions, the everyday tasks, such as metabolism. In most ciliate protozoans, the macronucleus is highly polyploidthat is, it contains several dozen to several thousand sets of chromosomes. Definition and synonyms of interfrom the online english dictionary from macmillan education. It usually is a sign of genotoxic events and chromosomal instability. The smaller, reproductive, transcriptionally inert nucleus in the cells of ciliate protozoans, as distinguished from the larger, vegetative, transcriptionally active macronucleus. Information and translations of macro in the most comprehensive dictionary definitions. English oxford living dictionaries macronucleus synonyms.
All cells have cell membranes, but generally only plants, fungi, algae, most bacteria, and archaea have cells with cell walls. Ectoplasm definition and examples biology online dictionary. Macronucleus definition, the larger of the two types of nuclei occurring in ciliate protozoans, having a multiple set of chromosomes and functioning in cell metabolism and protein synthesis. The development of a new macronucleus is a multistep procedure. In other words, it also works as a reverse dictionary. The latter is generated from the micronucleus by amplification of the genome and heavy editing. Heres a list of similar words from our thesaurus that you can use instead. Macronucleus definition and synonyms of macronucleus in. For instance, we infer the synonym relation gastrique, stomacal gastric, stomach from the synonym relation between. The larger type of nucleus involved in nonreproductive functions as opposed to the smaller micronucleus, and is a. The macronucleus is spherical or occasionally elipsoidal, lies on the dorsal side and is located near the middle of the cell.
Looking for online definition of macronucleus in the medical dictionary. Britt and company remain reverent to the source material, resulting in tasteful interpretations that stand. Macronucleus definition and examples biology online. Derived from the micronucleus by a process of dna polytenisation. Synonyms for yeti at with free online thesaurus, antonyms, and definitions. Wikipedia, lexilogos, larousse dictionary, le robert, oxford, grevisse. Metabolism consists of anabolism the buildup of substances and catabolism the breakdown of substances. And best of all its ad free, so sign up now and start using at home or in the. Micronuclei are commonly seen in cancerous cells and may indicate genomic damage events that can increase the risk of developmental or.
Macronuclei definition of macronuclei by the free dictionary. Sources categories word starts with word ends with word contains on this day websters dictionary popular map of the site all words new words. Prefix and suffix meanings suffix prefix dictionary. A cell wall is an outer layer surrounding certain cells that is outside of the cell membrane. Unabridged dictionary online access to a legendary resource. You can also use the box above to search for prefixes and suffixes with a particular meaning e. Macronucleus definition and examples biology online dictionary. A very large molecule, such as a polymer or protein, consisting of many smaller structural units linked together. A symbol placed over a vowel to show that it has a long. Macro definition, very large in scale, scope, or capability.
The larger of the two types of nuclei of ciliate protozoans, responsible for the. Britt and company remain reverent to the source material, resulting in tasteful interpretations that stand on their own or as a companion to the original work. The macronucleus can be quite variable in shape, resembling in some species a string of beads or a horseshoe. Full article the macronucleus is highly polyploid 800n in p. It divides by fission and, less often, by budding, in which case full chromosome sets are distributed between the daughter nuclei. Automatic acquisition of synonym resources and assessment of their impact on the enhanced search in ehrs.
Macronutrient nutrition synonyms, macronutrient nutrition. In contrast, the micronucleus is germinal responsible for transfer of genetic information during sexual reproduction and diploid. It then creates a new macronucleus that takes over for the old one. Micronucleus definition and examples biology online dictionary. If both terms are synonymous and their head components are identical, then an elementary synonym relation is inferred between expansion components. New rumen ciliate, entodinium kastamonicum, new species ophryoscolecidae. Macronucleus definition of macronucleus by the free. Micronucleus definition and examples biology online. Paramecium, genus of microscopic, singlecelled, and freeliving protozoans. For illustrative purposes, we describe the process of macronuclear development in hypotrichous ciliates. The macronucleus is spherical, centrally placed, and with one micronucleus closely applied. Most species can be cultivated easily in the laboratory, making them ideal model organisms, well suited for biological study. Any other plant formerly classified in the genus coleus, which is now considered to be a synonym of plectranthus.
Noun wikipedia macronucleus macronuclei biology the larger of the two nuclei present in ciliate protozoans. Micronucleus is the name given to the small nucleus that forms whenever a chromosome or a fragment of a chromosome is not incorporated into one of the daughter nuclei during cell division. Macronuclei are polyploid and undergo direct division without mitosis. During conjugation, the macronucleus disintegrates, and a new macronucleus is formed by karyogamy of the micronuclei. Suffix prefix dictionary is a dictionary of affixes prefixes and suffixes used by biologists and physicians in constructing scientific names and terminology. The macronucleus is associated with one or more smaller micronuclei, which are necessary for conjugation and autogamy reproduction by exchange between the nuclei of different individuals and of the same individuals, respectively. Macronucleus definition and meaning collins english dictionary. Words that rhyme with tears include gears, appears, rears, endears, lears, spears, disappears, arrears, sears and bears. Synonyms for macronutrient nutrition in free thesaurus.
With reverso you can find the french translation, definition or synonym for macronucleus and thousands of other words. Macronuclei definition of macronuclei by merriamwebster. In most ciliate protozoans, the macronucleus is highly polyploidthat is, it contains. Information and translations of macronucleus in the most comprehensive dictionary definitions resource on the web. A macronucleus formerly also meganucleus is the larger type of nucleus in ciliates. An affix is a letter or series of letters attached to the beginning or end of. Macronucleus definition is a relatively large densely staining nucleus of most. Macronucleus definition is a relatively large densely staining nucleus of most ciliate protozoans that is derived from micronuclei and controls various nonreproductive functions. Macronucleus definition of macronucleus by medical.
Macronucleus definition of macronucleus by the free dictionary. Free biology and life science resources at your fingertips. Macronucleus dictionary definition macronucleus defined. Our new online dictionaries for schools provide a safe and appropriate environment for children. Relating to metabolism, the whole range of biochemical processes that occur within us or any living organism. Aplasia the entire failure or organs or tissues to develop. In general, they are either of latin or greek derivation. Macrons definition of macrons by the free dictionary.
A nucleus that occupies a relatively large portion of the cell, or the larger nucleus where two or more are present in a cell. Macronucleus definition, the larger of the two types of nuclei occurring in ciliate protozoans, having a multiple set of chromosomes and functioning in cell. The larger of two nuclei present in ciliate protozoans, which controls nonreproductive functions of the cell, such as. Micro prefix definition and synonyms macmillan dictionary. Macronucleus definition of macronucleus by medical dictionary.
Macronucleus the larger somatic nucleus in infusorians ciliate protozoan. The larger of the two nuclei present in ciliate protozoans, it controls the nonreproductive functions of the cell macronucleus synonyms. Full article each cell contains a germ line micronucleus and a somatic. The term is sometimes used as a synonym of orbicular as applied to certain granites and diorites. It is the same phenomenon as perlitic cracking in volcanic glasses. Macronucleus synonyms and antonyms merriamwebster dictionary.
The larger nucleus or sometimes nuclei in ciliate protozoans. Find the definition of ectoplasm in the largest biology dictionary online. Another mystery is the unscrambling for the macronucleus of genes that had been shattered into pieces and scattered out of order in the micronucleus. Inter prefix definition and synonyms macmillan dictionary. These binucleated forms have one macronucleus functional and another sexual micronucleus which is not functional in the ordinary life processes of the species. Automatic acquisition of synonym resources and assessment of. It directs the normal functioning of the cell and usually disintegrates during read more. Paramecium definition, any ciliated freshwater protozoan of the genus paramecium, having an oval body and a long, deep oral groove. These examples are from the cambridge english corpus and from sources on the web. Pdf automatic acquisition of synonym resources and. It controls the nonreproductive cell functions, such as metabolism. Synonyms for macro at with free online thesaurus, antonyms, and definitions. Their basic shape is an elongated oval with rounded or pointed ends, such as in p.
Download our english dictionary apps available for both ios and android. Macronucleus definition and meaning collins dictionary. Synonyms for centrally at with free online thesaurus, antonyms, and definitions. The website aims to publish all wordlists, big and small, on the internet, making it much easier to find the word you need.
During sexual events, the old macronucleus is degraded and replaced by a new one. Micronucleus definition, the smaller of the two types of nuclei occurring in ciliate protozoans. Dictionary grammar blog school scrabble thesaurus translator quiz more resources more from collins. Macrons synonyms, macrons pronunciation, macrons translation, english dictionary definition of macrons. Suffix prefix dictionary online biology dictionary. Definition of macronuclei in the medical dictionary by the free dictionary. Full text of dictionary of microbiology internet archive. Macronucleus, relatively large nucleus believed to influence many cell activities. Any opinions in the examples do not represent the opinion of the cambridge dictionary editors or of cambridge university press or its licensors. Macronucleus definition and meaning collins english.
Results of a parallel mapping effort in the macronucleus, and the correspondence between the two genomes, can be found in this issue as a companion to this article. Macronuclei definition of macronuclei by medical dictionary. Definition and synonyms of microfrom the online english dictionary from macmillan education. Change your default dictionary to american english. You can complete the translation of macronucleus given by the frenchenglish collins dictionary with other dictionaries such as. Macronucleus definition of macronucleus by merriamwebster. Calkins both the small nucleus micronucleus and the large nucleus macronucleus divide at each division of the body. The larger of the two nuclei in ciliates, which governs vegetative metabolic functions and not reproduction. Noun the larger of the two nuclei present in ciliate protozoans. The larger type of nucleus involved in non reproductive functions as opposed to the smaller micronucleus, and is a.
This process is by no means perfect, and after about 200 generations the cell shows signs of aging. Division of the macronucleus occurs by amitosis, the segregation of the chromosomes is by a process whose mechanism is unknown. Macronucleus article about macronucleus by the free. Micronuclei participate in meiosis and autogamy during genetic conjugation.1267 222 1506 1125 87 103 889 940 528 1306 1271 478 1215 965 340 1468 917 916 450 785 1010 1417 1306 127 521 469 114 1121 1503 206 1179 734 875 1253 183 799 362 1440 708 20 817 13 1355 446 63