nuclear membrane
An intracellular structure, consisting of two concentric membranes, enclosing the nucleoplasm and separating it from the cytoplasm. The areas where these two membranes fuse are called nuclear pore complexes.
Nuclear Membrane
A nuclear membrane is a double membrane that encloses the cell nucleus. It serves to separate the chromosomes from the rest of the cell.
nuclear membrane -- The double membrane which surrounds the eukaryotic nucleus. It has many pores in its surface which regulate the flow of large compounds into and out of the nucleus.
nuclear membrane - similar in structure to the cell membrane, this structure separates the cytoplasm from the nucleus; contains large open pores for transfer of the macromolecules like RNA.
nuclear membrane The membrane surrounding the nucleus of eucaryotic cells.
nuclear pores Pitted regions in the nuclear envelope through which processed mRNA migrates to the ribosomes.
The nuclear membrane is reassembled during late telophase from vesicles that surround individual chromosomes, which eventually fuse into larger groups that finally associate to complete the structure.
The nuclear membrane disappears. One kinetochore forms per chromosome rather than one per chromatid, and the chromosomes attached to spindle fibers begin to move.
Metaphase I ...
The nuclear membrane reappears.
The chromosomes uncoil.
The spindle apparatus breaks down.
The cell divides into two.
Nucleus, nuclear membrane continuous with endoplasmic reticulum, ribosomes on ER, golgi budding off vesicles to outside
The pathway whereby bacteria and worn out mitochondria are degraded by lysosomes ...
Endoplasmic reticulum - the cell's highway transport system composed of tubes and membranes connected to the nuclear membrane and extending through the cytoplasm that is also utilized for storing and separating ...
It is surrounded by a well-defined wall, the nuclear membrane; this encloses the nuclear substance (nuclear matrix), which is composed of a homogeneous material in which is usually embedded one or two nucleoli.
This coupled transcription-translation occurs because of the lack of a nuclear membrane.
Eukaryotic transcription is primarily localized to the nucleus, where it is separated from the cytoplasm by the nuclear membrane.
Bacteria, since they are prokaryotes, lack a nuclear membrane and membrane-bound organelles. Biochemical processes that normally occur in a choloroplast or mitochondrion of eukaryotes will take place in the cytoplasm of prokaryotes.
An organism lacking a nuclear membrane and certain organelles such as mitochondria. Refers to both Bacteria and Archae. This term was used synonymously with bacteria before the differences between Bacteria and Archae were understood.
It is located on both sides of a cell's nuclear membrane and consists of a 20S core protease particle and two 19S regulatory particles.
about 1905, with the realization that the chromosomes are double from the beginning of nuclear division, he used the term in the now universally adopted sense of the stage of mitosis or of meiosis I or II before breakdown of the nuclear membrane.
2. With regard to the structure of the cell membrane/nuclear membrane, what was the purpose of the Palmolive detergent?
3. With regard to the structure of the cell membrane/nuclear membrane, what was the purpose of the meat tenderizer?
These clear tubes travel throughout all parts of the cell. Some go from the nuclear membrane to the outside cellular membrane. Others travel to different organelles.
The ER is a continuation of the outer nuclear membrane and its varied functions suggest the complexity of the eukaryotic cell.
The smooth endoplasmic reticulum is so named because it appears smooth by electron microscopy.
Interphase That portion of the cell cycle when the nuclear membranes have formed, the chromosomes have decondensed and the cell is going about its normal business. During this interval DNA replication takes place.
Nuclear envelope A double membrane, consisting of the inner nuclear membrane and the outer nuclear membrane, that surrounds the nucleus and is punctured with openings called nuclear pores.
Steroid hormones bind, once inside the cell, to the nuclear membrane receptors, producing an activated hormone-receptor complex. The activated hormone-receptor complex binds to DNA and activates specific genes, increasing production of proteins.
Telophase (TEE-lo-faze) The fifth of six phases of cell division, following anaphase and preceding cytokinesis. In telophase, nuclear membranes form around each of the two sets of chromosomes, the chromosomes begin to spread out, ...
nucleus
An organelle of eukaryotic cells that is bounded by a nuclear membrane and contains the chromosomes whose genes control the structure of proteins within the cell.
Covered in: BIOL1020 Lab 3 Cells
O ...
the early phase of cell division from the time the chromosomes first become visible to the beginning of metaphase, when the nuclear membrane disappears and the chromosomes maximally condensed ...
endon, within + plasma, from cytoplasm; L. reticulum, network]
An extensive membranous network in eukaryotic cells, continuous with the outer nuclear membrane and composed of ribosome-studded (rough) and ribosome-free (smooth) regions.
Researchers at Case Western Reserve University and Copernicus Therapeutics are able to create tiny liposomes 25 nanometers across that can carry therapeutic DNA through pores in the nuclear membrane.
Organisms, namely bacteria and cyanobacteria (formerly known as blue-green algae), characterized by the possession of a simple naked DNA chromosome, occasionally two such chromosomes, usually of circular structure, without a nuclear membrane and ...
[Gr. dia - apart; Gr. kinesis - movement]. The last stage of prophase 1 of meiosis, leading to metaphase of the first meiotic division. The chromosomes are at maximum condensation and the nuclear membrane breaks down.
The last stage (Gk. telos, end) of mitosis, or of either division of meiosis, during which the chromosomes become progressively thinner and more elongated (Heidenhain, 1894). Telophase is said to begin with the formation of a nuclear membrane round ...
It is not always present in the nucleus. When the cell divides, the nuclear membrane dissolves and the nucleoplasm is released. After the cell nucleus has reformed, the nucleoplasm fills the space again.
Whereas in the case of the bacteria, the other form of life it is the case that there, they have no nuclear membrane containing the genes, as the eukaryotes do. Nevertheless, they have genes. It's just that they're not enclosed in a bag.
 See also: Membrane, Cell, Cells, Chromosome, Nucleus
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