prokaryotic cell
a cell that lacks a membrane-bonded nucleus, does not undergo meiosis, and lacks the structurally complex chromosomes found in eukaryotes
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
Prokaryotic cell
A cell that lacks a membrane-bound nucleus, for example bacteria. Prokaryotic genetic material exists in the form of a single, circular, dNA molecule and is arranged in operons.
Prokaryotic Cells
Viruses are the simplest form of life but they are not cellular. They rely on entry into cells to reproduce. They enter and use the cell's metabolic machinery to replicate their nucleic acid and to produce their protein coats.
Prokaryotic Cells
Bacteria are prokaryotes. Their cells are very small and very simple. They will be discussed later.
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Prokaryotic cell walls
Bacterial cell walls
Diagram of a typical gram-negative bacterium, with the thin cell wall sandwiched between the yellow outer membrane and the thin red plasma membrane ...
Prokaryotic cell (PRO-kare-ee-AW-tick) A cell that lacks a nucleus. Bacteria are prokaryotes. See eukaryotic cell.
prokaryotic cell
[L. pro, before + Gk. karyon, nut, kernel]
A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles; found only in the domains Bacteria and Archaea.
prometaphase ...
Prokaryotic cells may have photosynthetic pigments, such as is found in cyanobacteria ("blue bacteria"). Some prokaryotic cells have external whip-like flagella for locomotion or hair like pili for adhesion.
Prokaryotic cells divide by binary fission. Eukaryotic cells usually undergo a process of nuclear division, called mitosis, followed by division of the cell, called cytokinesis.
prokaryotic cell, nucleoid, cell wall, plasma membrane, cytoplasmic membrane, ribosome, glycoprotein, flagella, pili
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prokaryotic cell A type of cell lacking a nucleus and membrane-bound organelles; found in the Kingdom Monera.
prokaryotic, procaryotic Not having a membrane-bound nucleus or nuclei. Prokaryotic cells characterize the bacteria and cyanobacteria.
The prokaryotic cells do not have membranous organelles, although their membranes have invaginations that extend into the cytosol. Those invaginations determine certain functions, like the secretion of substances and the synthesis of DNA and RNA.
nuclear area In prokaryotic cells, a region containing the cell's genetic information. Unlike the nucleus in eukaryotic cells, it is not surrounded by a membrane.
Simple, prokaryotic cells still dominated the world's environments until the evolution of simple eukaryotes approximately 1.5-1.2 billion years ago.
First used for the transformation of prokaryotic cells by protein-free DNA or RNA from viruses. Also the process of genetic transformation in eukaryotic cells.
Related Terms:
Transformation ...
Prokaryotic cells have ribosomes made of 50-S and 30-S subunits. It's a small difference, but one of many you will find in the two different types of cells.
Prokaryotic cells, on the other hand, contain 70S ribosomes, each of which consists of a 30s and a 50s subunit.
The components of a typical prokaryotic cell are a cell wall, a cytoplasmic membrane, a single molecule of DNA, ribosomes and the cytoplasm. All other components, although they might be present, are essentially dispensable.
A rigid boundary consisting of peptidoglycans in prokaryotic cells and cellulose in plant cells.
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prokaryotic -- Literally "before the nucleus", the term applies to all bacteria and archaea. Prokaryotic cells have no internal membranes or cytoskeleton. Their DNA is circular, not linear.
The process by which exogenous DNA in solution is introduced into cells. The introduction of foreign DNA into eukaryotic or prokaryotic cells.
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prokaryotes
an organism that is either a bacterium or a blue-green alga, its main characteristic being prokaryotic cells lacking a membrane-bound nucleus and no mitosis or meiosis.
Covered in BIOL1020 Lab 3 Cells ...
This, and other evidence, led scientists to the now widely held belief that these organelles were once free-living prokaryotic cells that began living in proto-eukaryotic cells and eventually the two types of cells required each others presence for ...
Moneran - simplest kingdom containing prokaryotic cells (mostly bacteria), some of which can create their own food
Nuclear membrane - membrane surrounding the nucleus that is covered with pores and controls nuclear traffic ...
 See also: Cells, Cell, Organ, Trans, Protein
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