sperm science definition
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Sperm The male gamete or reproductive cell involved in sexual reproduction. It is produced by a male organism that unites with the egg of a female organism forming a zygote. Supplement. A sperm is a cell consisting of a round or cylindrical nucleated cell, a short neck, and a thin motile tail.Its structure is vital to its mobility and function (i.e. sexual reproduction). The compacted nucleus contains half of the genetic information.t is produced by a male organism that unites with the egg of a female organism forming a zygote. Supplement. A sperm is a cell consisting of a round or cylindrical nucleated cell, a short neck, and a thin motile tail. Its structure is vital to its mobility and function (i.e. sexual reproduction).
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Semen Semen is a sticky white or yellowish fluid that contains sperm. Semen (pronounced SEE-men or SEE-mən) is the fluid that comes out from the end of a man's penis when he has an orgasm (the height of sexual excitement) and ejaculates.
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Sperm The sperm cells are the only flagellated cells in the life cycle of these plants. In many ferns and lycophytes, they are multi-flagellated (carrying more than one flagellum). In nematodes, the sperm cells are amoeboid and crawl, rather than swim, towards the egg cell.
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Definitions &Translations A male (♂) organism is the physiological sex that produces sperm.Each spermatozoon can fuse with a larger female gamete, or ovum, in the process of fertilization. A male cannot reproduce sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually. male (♂) organism is the physiological sex that produces sperm.
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- Noun. 1. semen-the thick white fluid containing spermatozoa that is ejaculated by the male genital tract. come, cum, ejaculate, seminal fluid, seed. milt-seminal fluid produced by male fish. bodily fluid, body fluid, liquid body substance, humour, humor-the liquid parts of the body.
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- Reprinted with Permission by DrRajMD. The production of sperm, or spermatogenesis, is a complicated process of cell division. First, primitive germ cells known as spermatogonia divide to produce offspring cells, or spermatocytes, that ultimately redivide twice to form young sperm cells known as spermatids.
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sperm Definition of sperm for English Language Learners. : a cell that is produced by the male sexual organs and that combines with the female's egg in reproduction. : fluid that is produced by the male sexual organs which contains sperm cells.
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flagellum Noun. 1. sperm cell-the male reproductive cell; the male gamete; a sperm is mostly a nucleus surrounded by little other cellular material. sperm, spermatozoan, spermatozoon.flagellum-a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa).oun. 1. sperm cell-the male reproductive cell; the male gamete; a sperm is mostly a nucleus surrounded by little other cellular material. sperm, spermatozoan, spermatozoon.
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- Sperm production and health Information on diet, herbs, vitamins and natural supplements for health and low sperm count, review of causes, by Ray Sahelian, M.D. November 24, 2016. Sperm is the male reproductive cells produced by the testicles while semen is the fluid that contains it.
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Healthy Sperm It's very important for sperm cells to have a healthy structure and shape. A good-quality sperm cell has an oval head and a long tail which it uses to swim. If a man's semen contains a lot of sperm cells which have misshapen heads and tails, he is less likely to be able to fertilize his partner's egg.
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Definitions &Translations A male (♂) organism is the physiological sex that produces sperm. Each spermatozoon can fuse with a larger female gamete, or ovum, in the process of fertilization.A male cannot reproduce sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually. male (♂) organism is the physiological sex that produces sperm. Each spermatozoon can fuse with a larger female gamete, or ovum, in the process of fertilization.
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- If less than half of the sperm are motile, a stain is used to identify the percentage of dead sperm. This is called a sperm viability test. Morphology—the study of the size, shape, and appearance of the sperm cells; the analysis evaluates the structure of the sperm.
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Sperm Sperm is the male reproductive cell and is derived from the Greek word (σπέρμα) sperma (meaning seed). In the types of sexual reproduction known as anisogamy and its subtype oogamy, there is a marked difference in the size of the gametes with the smaller one being termed the male or sperm cell.
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What is a male gamete? sperm, a single cell containing half of the father male original genetic composition. by meeting up with the female egg it will fertilize it and start to grow to a full person.
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sperm Sperm or spermatozoa. The reproductive cell of the male, which contains genetic information and participates in the act of fertilization of an ovum. sperm. Male gamete or sex cell that contains the genetic information to be transmitted by the male, exhibits autokinesia, and is able to effect zygosis with an oocyte. sperm, n the cells contained in the male's semen that fertilize the female's egg during the process of conception.
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What Is Spermatogenesis? What Is Spermatogenesis? Spermatogenesis is the process of formation of sperm cells in the male body. Spermatozoa are produced when rounded immature sperm cells go through successive mitotic, meiotic divisions, and then undergo a metamorphic change, which results in spermatozoa.
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Fertilization Definition. noun, plural: fertilizations. (biology). (1) A process in sexual reproduction that involves the union of male (sperm) and female (ovum) gametes (each with a single, haploid set of chromosomes) to produce a diploid zygote.(2) Fecundation or impregnation of animals and plants (e.g. by insemination and pollination, respectively).efinition. noun, plural: fertilizations. (biology). (1) A process in sexual reproduction that involves the union of male (sperm) and female (ovum) gametes (each with a single, haploid set of chromosomes) to produce a diploid zygote.
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- Sperm or spematazoa are alternative names for a male gamete. Depending on the type of organism one of the two terms is more likely to be used. When speaking about human males,… the term sperm is more common.
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- Sperm Morphology. An important part of any breeding soundness exam is an evaluation of sperm morphology. In the most fundamental case, the size and shape of the head, midpiece and tail are examined. Additional information can be gained by evaluating integrity of the acrosome and sperm membranes. Sperm from different species vary in size and shape.
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What is spermatogenesis? Spermatogenesis is the process in which male haploid germ cells are  produced from diploid spematogonial stem cells by way of mitosis  and meiosis.This occurs in the same … way in rats in the  seminiferous tubules boundaries of the testes.permatogenesis is the process in which male haploid germ cells are  produced from diploid spematogonial stem cells by way of mitosis  and meiosis.
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Spermatozoon The human sperm cell is the reproductive cell in males and will only survive in warm environments; once it leaves the male body the sperm's survival likelihood is reduced and it may die, thereby decreasing the total sperm quality.Sperm cells come in two types, female and male.n mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring.
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sperm cell The human sperm is composed of a head and a tail, the tail being divisible into a neck, a middle piece, a principal piece, and an end piece; the head, 4-6 mcm in length, is a broadly oval, flattened body containing the nucleus; the tail is about 55 mcm in length. Synonym(s): sperm cell, spermatozoon. [G. sperma, seed]
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Semen and sperm quality Semen is a white or grey liquid, emitted from the urethra (tube in the penis) on ejaculation. Usually, each millilitre of semen contains millions of spermatozoa (sperm), but the majority of the volume consists of secretions of the glands in the male reproductive organs.
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- When the sperm has the usual single flagellum (or tail), it is called a spermatozoon and may be described as uniflagellate. The flagellum moves in a whip-like manner, propelling the the sperm towards the egg and uniflagellated sperm are also termed motile sperm.y Dr Ananya Mandal, MD. Sperm is the male reproductive cell in vertebrates. The term is derived from the Greek word sperma meaning seed. Sperm were first observed under a microscope in 1677 by Antonie van Leeuwenhoek who described them as little animals or animalcules.
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- Tweet. : a cell that is produced by the male sexual organs and that combines with the female's egg in reproduction. : fluid that is produced by the male sexual organs which contains sperm cells.plural sperm or sperms. a cell that is produced by the male sexual organs and that combines with the female's egg in reproduction.
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- Spermatogenesis is an important concept in biology and reproduction, and this quiz/worksheet will help you assess your understanding of its components and related terms. Quiz & Worksheet Goals In these assessments you'll be tested on the components and functions of: