Nucleus ppt pdf

Nucleus ppt pdf

After you enable Flash, refresh this page and the presentation should play. Get the plugin now. Toggle navigation. Help Preferences Sign up Log in. To view this presentation, you'll need to allow Flash. Click to allow Flash After you enable Flash, refresh this page and the presentation should play. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Title: Nucleus: structure and function.

Description: Synthesis of secreted and membrane proteins. Keratin filaments. Karp, 9. Actin Filaments Tags: function keratine nucleus structure. Latest Highest Rated. Title: Nucleus: structure and function 1 Fig. The extent of changes varies. Polar AA on each end face aqueous environment.

Ex Spectrin IN Or, could bind here. Extracellular Ex Normal cellular scrapie protein Intracellular Ex Ras IN 29 Carbohydrates can be linked to membrane lipids or proteins Two types of linkages to proteins - Linked covalently to make glyco- lipids or proteins.Developers can make full use of multi-core solutions across the spectrum of Microcontroller and Microprocessor SoCs using SMP and AMP configurations to integrate multiple operating systems.

View all supported hardware. Digital technologies such as the burgeoning IoT and cognitive computing are creating significant change across the embedded systems landscape.

The need for secure connectivity and computationally intensive View White Paper. In the world of smart phones and tablet PCs memory might be cheap, but in the more constrained universe of deeply embedded devices, it is still a precious resource. This is one of the many reasons why most Nucleus user forums — discussions, design tips, sample designs and more.

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By using this website, you consent to the use of our cookies.Cytology, the study of cells as fundamental units of living things. The earliest phase of cytology began with the English scientist Robert Hookes microscopic investigations of cork in He observed dead cork cells and introduced the term cell to describe them. In the 19th century two Germans, the botanist Matthias Schleiden in and the biologist Theodor Schwann inwere among the first to clearly state that cells are the fundamental particles of both plants and animals.

This pronouncementthe cell theorywas amply confirmed and elaborated by a series of discoveries and interpretations. In the German embryologist and anatomist Oscar Hertwig suggested that organismic processes are reflections of cellular processes; he thus established cytology as a separate branch of biology. Cytology Introduction. Organelles are tiny structures in the cytoplasm which perform various jobs for the cell.

Cytosol is the fluid part of the cytoplasm. Prokaryotic Cells They lack a nuclear membrane as well any other membrane covered organelles in their cytoplasm. Nucleotide A nucleotide consists of a : 1. Phosphate group 2. Deoxyribose sugar 3. Ribosomes and other important chemical messages leave the nucleus through the Nuclear Pores.

The membrane around the nucleus is called the Nuclear Membrane or Envelope. Mitochondrion Mitochondria plural : is a membrane bound oval shaped organelle that function as the cells power plant. Cell membrane Rough endoplasmic reticulum Ribosome attached. In the interests of the patient, it is advisable that they be transported to the laboratory for processing as soon as is possible to minimise autolysis and promote accurate and timely reporting.

nucleus ppt pdf

To facilitate this, specimens must arrive in the laboratory correctly labelled and packaged and accompanied by an appropriate request form completed with the minimum data set and all relevant patient and clinical details. Ensure high risk samples are clearly labelled with bio- hazard warning stickers. All samples sent to the laboratory should be packed so as to comply with the Carriage of Dangerous Goods Classification, Packaging and Labelling Regulations General Guidance Use containers provided by Laboratory Medicine.

These are designed to be robust and avoid leakage with normal use. Ensure that the container is appropriate for the purpose, is tightly closed prior to transport and not contaminated on the outside. After labelling, the samples should be placed in individual plastic transport bags. They must be sealed securely using the zip fastener without the use of clips or staples.

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Place the corresponding sample request form in the integral side pocket of the transport bag, thereby keeping it separate from the sample to avoid the potential for contamination in the event of the sample leaking during transport. If a spillage occurs and is not contained within the specimen transport carrier please ring Pathology Reception using the number provided on the side of the box and assistance will be provided.

Do not leave a spill unattended.

2nucleus.ppt

Transport between SOL, BHH and GHH is provided by a regular inter- site shuttle service with the support of a hospital courier van to provide additional backup and increased transport capacity as and when the need arises. The shuttle bus timetable is available on the Trust intranet using the alphabetical search facility.

Learn more about Scribd Membership Home. Read Free For 30 Days. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Document Information click to expand document information Date uploaded Aug 21, Did you find this document useful? Is this content inappropriate? Report this Document.After you enable Flash, refresh this page and the presentation should play.

Get the plugin now. Toggle navigation. Help Preferences Sign up Log in. To view this presentation, you'll need to allow Flash. Click to allow Flash After you enable Flash, refresh this page and the presentation should play. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Title: Nucleus. Binding energy. Tags: nucleus shows. Latest Highest Rated. Short notation A only 3 Nuclear Size All nuclei have about the same density r. Independent of A The nucleus is roughly a sphere.

Radius r, r0 1. Isotones for identical neutron count 5 Nuclear States 6 Atomic Mass Energy measurements for nuclear physics are built on the electron volt eV.

Mass is also expressed in terms of nucleons. Atomic mass unit u Based on 12C 1 u Tables of isotope data frequently list D M A. Binding energy 1H D 7. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow. And, best of all, most of its cool features are free and easy to use. You can use PowerShow. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free.

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All for free.The nucleus is a membrane-limited compartment that contains the genetic information. Most cells have only 1 nucleus. But there are cells that have more than 1 nucleus: cardiac muscle cells, hepatocytes can have 2 nuclei, osteoclasts and megakaryocytes are multinucleated cells. Shape of the nucleus most often is spherical or oval.

Chapter 12 - Nucleus.ppt

Position of the nucleus: most often in the center of the cell, can be located at the periphery eccentric. The nucleus of an interphase nondividing cell consists of: I.

Nuclear envelope II. Nucleoplasm III. Nucleolus IV. Chromatin V. Nuclear skeleton - lamina. The Nuclear envelope is formed by two membranes inner and outer with a perinuclear cisternal space.

It serves as a membranous boundary between the nucleoplasm and the cytoplasm of the interphase cell. Outer nuclear membrane a faces the cytoplasm and is continuous with the rough endoplasmic reticulum rER b contains ribosomes which synthesize proteins that enter the perinuclear cisterna. Inner nuclear membrane a faces the nuclear material b it is supported on its inner surface by the fibrous nuclear lamina c nuclear lamina: is composed of proteins called nuclear lamins specialized type of intermediate filament provides structural rigidity to nucleus and possible sites of attachment for chromatin.

Perinuclear cisterna is located between the inner and outer nuclear membranes; it is continuous with the cisterna of the rER; it is perforated by nuclear pores. Inner and outer nuclear membranes fuse at intervals, forming openings in the nuclear envelope called nuclear pores. With high-resolution transmission electron microscopy the nuclear pore exhibits additional structural detail.

Structure of the complex pore It is composed of: Cytoplasmic ring Middle ring Nucleoplasmic ring. Eight transmembrane proteins project into the lumen of the the nuclear pore, anchoring the complex into the pore rim.

The nucleoulus is a nuclear inclusion that is not surrounded by a membrane. Fibrilar component is composed of inactive DNA 3.

Granular component contains nm maturing ribosomal precursor particles.These are the best ways to insert any form of content, including PDF into PowerPoint files, online or offline. Compress Convert Merge Edit Sign.

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nucleus ppt pdf

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Nucleus - PowerPoint PPT Presentation

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nucleus ppt pdf

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Smallpdf will upload and start to work on the file right away.The nucleus Content of the nucleus : DNA. The DNA is similar in every cell of the body, but depending on the specific cell type, some genes may be turned on or off In a growing or differentiating cell, the nucleus is metabolically active, replicating DNA and synthesizing rRNA.

In the mature erythrocytes from non-mamalian vertebrates and other types of resting cells, the nucleus is inactive or dormant - minimal synthesis of DNA and RNA. Within the nucleus, mRNA binds to specific proteins, forming ribonucleoprotein particles. The nucleolus Subcompartment of nucleus.

Not bounded by a phospholipid membrane. The place where most cells rRNA is synthezised - produces ribosomes move out of the nucleus and take positions on the rough ER. The finished or partly finished ribosomal subunit as well as tRNA and mRNA-containing particles, pass through a nuclear pore into the cytosol for use in protein synthesis.

During the interphase, cells are not dividing, the less tightly coiled DNA in the chromosome exists as a nucleoprotein complex or chromatin. Under the electron microscope look like beads on a string. The string composed of free DNA linker.

DNA connecting the beadlike structures nucleosome. Composed of DNA and histonesprimary structural unit of chromatin. Chromatin DNA within nucleus combines with protein histones to form chromatin. Thread-like material that makes up the chromosomes.

Histone proteins are positively charged and form spools around which the negatively charged DNA strands wrap. Euchromatin: Active in genetic transcription. Heterochromatin: Contains genes that are permanently inactivated. How the nuclear DNA is packed into chromosome?

Additional folding of the scaffold compacts the stucture into the highly condensed form of methaphase chromosome. What is chromosome? A component of nucleus- very important in the mitosis and meiosis process. Discovered by Waldayer Gamet sex cell i. Primer Constriction Kinetachor Responsible for the segregation of the chromosome into doughther cells in on cell division. Secondary constriction Satellite Telomere Required for the maintenance of chromosomal structure is located at termini of the linier chromosome.

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