Navigation Links
Microscope in Biological Definition

Anton van Leeuwenhoek

... known for his contribution to improvement of the microscope and his contributions towards the establishment of cell biology . Using his handcrafted microscope he was the first to observe and describe muscle ... over 500 optical lenses during his lifetime. His microscope was used and improved by Christiaan Huygens for ...

Microscope

... 1852 microscope A microscope ( Greek : micron = small and scopos = aim) ... the unaided eye. In other words, requiring a microscope to examine. The most common type of ...

Chromosome

... context in which individual chromosomes are visible with an optical microscope . Prokaryotes do not possess histones or nuclei. In its relaxed state, ... females, one of the two X chromosomes is inactive and can be seen under a microscope as Barr bodies . Human chromosome Chromosome Genes ...

Marcello Malpighi

... his name to several physiological features. He was pioneer in using a microscope and he has also been described as a founder of comparative physiology ... such recognition given to an Italian. Research Malpighi used the microscope for studies on skin , kidney , and for the first interspecies ...

Abiogenesis

... spontaneous generation did not occur, but that omne vivum ex ovo , every living thing came from a pre-existing living thing. The discovery of the microscope carried the refutation further. In 1683 Antoni van Leeuwenhoek discovered bacteria, and it was soon found that however carefully organic matter ...

Apoptosis

... regulators Apoptotic process Morphology A cell undergoing apoptosis shows a characteristic morphology that can be seen under a microscope : The cell becomes round (circular). This occurs because the protein structures that conform the cytoskeleton are digested by specialized ...

ATP synthase

... membrane. The F 1 particle was first isolated by Ephraim Racker in 1961. The F 1 particle is large and can be seen in the transmission electron microscope by negative staining (1962, Fernandez-Moran et al., Journal of Molecular Biology, Vol 22, p 63). These are particles of 9 nm diameter that pepper the ...

Bacterium

... 11 External links History and taxonomy The first bacteria were observed by Antony van Leeuwenhoek in 1683 using a single-lens microscope of his own design. The name bacterium was introduced much later, by Ehrenberg in 1828 , derived from the Greek word ...

Biological tissue

... or, in connection with disease, histopathology . The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope , though developments in electron microscopy , immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of ...

Cancer

... cell adhesion . Some cell adhesion proteins are tumor suppressor genes . Morphology Cancer tissue has a distinctive appearance under the microscope . Among the distinguishing traits are a large number of dividing cells, variation in nuclear size and shape, variation in cell size and shape, loss ...

DNA

... Deoxyribose Nucleic Acid ". April 2, 1953. (paper on the structure of DNA) DNA Interactive (requires Macromedia Flash ) DNA under electron microscope ...

Electrophysiology

... to establish an electrochemical junction with the pipet fluid and the tissue or cell into which the pipet is inserted (typically with the aid of a microscope and finely adjustable pipet holders, known as micromanipulators). The chloride-coated silver wire connects back to the amplifier. Classically, ...

Bacterium

... 11 External links History and taxonomy The first bacteria were observed by Antony van Leeuwenhoek in 1683 using a single-lens microscope of his own design. The name bacterium was introduced much later, by Ehrenberg in 1828 , derived from the Greek word ...

Cell membrane

... primarily mechanical support. The plasma membrane is only about 10 nm thick and may be discerned only faintly with a transmission electron microscope . One of the key roles of the membrane is to maintain the cell potential . Contents showTocToggle("show","hide") 1 A Fluid Mosaic ...

Infertility

... analysis of the ejaculate , which contains the sperm . The analysis includes counting the number of sperm and measuring their motility under a microscope : Producing few sperm, oligospermia , or no sperm, azoospermia . A sample of sperm that is normal in number but shows poor motility, or ...

Immunology

... enzyme and are used as a "probe" to detect it. Well known applications of this include immunoblotting , ELISA and immunohistochemical staining of microscope slides. The speed, accuracy and simplicity of such tests has led to the development of rapid techniques for the diagnosis of disease, microbes and ...

Insulin

... Discovery and characterization In 1869 Paul Langerhans , a medical student in Berlin , was studying the structure of the pancreas under a new microscope when he noticed some previously unidentified cells scattered in the exocrine tissue. The function of the "little heaps of cells", later known as ...

Nucleosome

... in eukaryotes . All chromatin (except for that packaged in the sperm nucleus) consists of nucleosomes. Nucleosomes can be seen with an electron microscope as bead-like structures along the DNA. Structure The histones make up the central core particle of the nucleosome. The DNA is ...

Cell membrane

... primarily mechanical support. The plasma membrane is only about 10 nm thick and may be discerned only faintly with a transmission electron microscope . One of the key roles of the membrane is to maintain the cell potential . Contents showTocToggle("show","hide") 1 A Fluid Mosaic ...

Proteomics

... of human genes from previous estimates. Proteomic World - Resources for proteomics research. Yeast GFP Localization Database - Database of microscope images and quantitation for most of the yeast proteome. References Twyman, R. M. 2004. Principles of proteomics. BIOS Scientific ...

Starch

... added to a sample containing starch (specifically amylose) will turn an intense blue-black colour, otherwise it will stay yellow-orange. Under the microscope , starch grains show a distinctive Maltese Cross effect (also known as 'extinction cross') under polarised light . External links Jones, ...

Stoma

... with transparent nail varnish.(or thin layer of PVA glue ) Allow to dry out thoroughly (takes a good 30 minutes). Peel off and place on a microscope slide. The stomata leave clearly visible impressions in the nail varnish. A graticule slide allows for the counting of how many stomata (per ...

Tobacco mosaic virus

... tobacco, tomato, pepper, cucumbers, and a number of ornamental flowers. There are many different strains. External links Electron microscope image of TMV Several EM images and schematic drawings Images of the TMV coat protein ...

Tobacco mosaic virus

... tobacco, tomato, pepper, cucumbers, and a number of ornamental flowers. There are many different strains. External links Electron microscope image of TMV Several EM images and schematic drawings Images of the TMV coat protein ...
Other Contents
(Date:4/1/2015)... 1, 2015  NXT-ID, Inc. (NASDAQ: NXTD ) ... on the growing mobile commerce market, announces the second ... is underway to early access pre-order customers. ... at retail outlets including Walmart, Target, AT&T, Dunkin, Donuts, ... was accepted at all outlets and very easy to ...
(Date:3/30/2015)... and Markets ( http://www.researchandmarkets.com/research/lc9bnl/global_gesture ) has announced ... in Automotive Sector 2014-2018" report to their offering. ... market in Automotive Sector to grow at a CAGR ... recognition is the ability of a device to identify ... recognition technology can be 2D-based or 3D-based. It uses ...
(Date:3/24/2015)... 24, 2015   NexID Biometrics LLC, whose ... needs, today announced the beginning of shipments of version ... The company, based in Potsdam, N.Y. ... Connect:ID Expo, which began here today at the Walter ... 2.0 of its SDK boosts the accuracy rate range ...
Breaking Biology News(10 mins):NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4Global Gesture Recognition Market in Automotive Sector Report 2015 - Growing Number of Partnerships 2NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2
(Date:4/27/2015)... OR (PRWEB) April 27, 2015 Doping ... as Lance Armstrong and Alex Rodriguez continue to capture ... neurology present a new frontier in performance enhancement along ... SCI TV , accomplished neuroscientist Anjan Chatterjee ... talks about the ethics and dangers of these enhancements ...
(Date:4/27/2015)... Launched by a group of ... consumers a way to connect to top local ... a patent-pending Pick Your Price matching algorithm, clients ... laser hair removal and dermal fillers on days ... in their schedules. This allows clients to take ...
(Date:4/26/2015)... NC (PRWEB) April 26, 2015 Italian ... the deadly legacy of asbestos cement plants and other ... on the new research. Click here to read ... from Italy’s Department of Occupational and Environmental Medicine analyzed ... 2008 and found 32 clusters where the asbestos cancer ...
(Date:4/26/2015)... From March 18th, 2015 toward the middle of ... Trivedi, spent a month traveling in India to find ... the efforts of creating highly advanced, effective and less ... health care. , During their journey, they met ... lab facilities are approved by the U.S. Food and ...
(Date:4/26/2015)... April 26, 2015 In an article ... University evaluated the head-neck biomechanics occurring during the use of ... were able to determine that use of a tablet increases ... to 5 times - more than when the neck is ... such a study, but pointing out the potential hazards of ...
Breaking Medicine News(10 mins):Health News:The Brain, Smart Drugs, and Sports on SCI TV with Anjan Chatterjee 2Health News:The Brain, Smart Drugs, and Sports on SCI TV with Anjan Chatterjee 3Health News:ZendyBeauty Is Pleased to Announce the Expansion and Rebranding of the Company as ZendyHealth.com 2Health News:New Investigation Finds Mesothelioma “Clusters” Around Italian Cement Plants, According to Surviving Mesothelioma 2Health News:Trivedi Science™ Has Started Scientific Research to Create More Effective Pharmaceuticals and Nutraceuticals 2Health News:Trivedi Science™ Has Started Scientific Research to Create More Effective Pharmaceuticals and Nutraceuticals 3Health News:Avoiding the Pain in the Neck Caused by Overuse of Technology 2Health News:Avoiding the Pain in the Neck Caused by Overuse of Technology 3Health News:Avoiding the Pain in the Neck Caused by Overuse of Technology 4
Other TagsOther Tags