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Glossary - Letter M


Spring - Every body of water used for public water supply.

Metaphase - Phase of cell division characterized by pairing of chromosomes in the equatorial line of the cell.

Meiosis - Cell division process by which a diploid cell gives rise to haploid cells; is a process that reduces the chromosomal number (reductive division)

Nuclear Membrane - View Library

Plasma membrane - Or plasmalema; Thin lipoprotein film that delimits all types of living cells.

Meristem - Undifferentiated plant tissue from which new cells originate for the formation of other tissues.

Mesosomes - Folding or invagination of the cytoplasmic membrane in certain bacteria giving rise to a region where respiratory enzymes are concentrated.

Metabolism - Set of all biochemical processes involved in maintaining the life of a being.

Metacentric - Metacentric chromosome. He who is divided in half by his centromere.

Mycelium - Set of hyphae that make up the fungi with roots of certain plants

Mycoplasma - Be Monera comparable to PPLO

Micrognathia - Mandible atrophy. Mandibular malformation.

Microtome - Apparatus used to obtain thin sections of biological material for microscopic observation.

Microtubules - Proteins that form the cytoskeleton.

Microvilli - Each of the dozens of microscopic folds in the membrane of certain cells increases their ability to absorb substances.

Myosin - One of the proteins that slides over actin to produce muscle contraction. See actin.

Mitochondria - Cytoplasmic organelle of eukaryotic cells, responsible for cellular respiration. Also known as chondroma.

Mitosis - Process by which a eukaryotic cell gives rise, in an ordered sequence of steps, to two chromosomal and genetically identical cells (see also cell division)

Mixo Prefix means "mucilage" or mixture.

Monocotyledons - (From Greek: kotyedon, cup-shaped cavity) Angiosperm subclass, characterized by several properties, including the presence of a single seed leaf (cotyledon).

Monosaccharides - Carbohydrate of the formula C n (H 2 O) n, where n ranges from 3 to 7; glucose for example is a monosaccharide

Multicell - Or multicellular; It is said of the organism that is formed by many cells.

Mutations - discontinuous variations that modify the genetic heritage and are externalized through permanent and hereditary changes. They constitute important factors in the sense of the adaptation of the living being to the environment.
Mutualism - harmonic interspecific association in which two species involved help each other.

Mutualism - Or symbiosis; interspecific ecological relationship in which there are reciprocal advantages for the related species; It differs from protocooperation in that, on the contrary, it is a permanent and indispensable association for the survival of the parties.

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