Cells are often described as the basic unit of life. Cell biology is a sub-discipline of biological studies that deals with the study of cells in all aspects. From cell anatomy, cell death, cell respiration to the processes of cell divisions like mitosis and meiosis, cell biology covers all topics.

This subject is closely related to other important branches of science like genetics, biochemistry and molecular biology. Also known as cytology, cell biology is closely associated with immunology and developmental biology.

Originally derived from the Greek word kytos meaning contain, this area of biology strictly deals with the physiological properties of the cell, the organelles that present in these, cell structure, the pattern of interaction between cells and cell pathways.

The study of cells focuses on both single-celled organisms like bacteria and protozoa to complex, multi-cellular organisms like plants, animals and human bodies. Tracking down the nature of these cells, their functions and similarities and dissimilarities of cells in living organisms are all a part of the course.

Think about it what if you were never able to get an ailment traced? Today, you are aware of diseases and their symptoms. There are millions of health professionals at service trying you treat patients from the adversities and lethal impacts of malicious diseases like the Big C, Alzheimers disease, cystic fibrosis, meningitis or even malaria. These problems spring in at molecular levels. Therefore, by understanding how cells work and function, cell biologists are able to make new discoveries in the field of medicine.

After analyzing all forms of living organisms like plants, animals and human beings, cell scientists carefully discover a series of advanced drugs, vaccines and sedative to ensure proper cure to a serious ailment.

Why just diseases, cell biology has contributed towards the human fertility program. Even forensic teams put cell biology into practice to execute successful solutions like DNA fingerprinting to solve a murder or other complex criminal activities.

Cell biologists analyze plants and define their genetic behavior. These work wonders in encouraging the production of better and modified crops.

Various career paths open up once you have successfully accomplished a course on cell biology. Some of them are:

Here are the web resources on cell biology:

Cell and Molecular Biology OnlineAn Informational Resource for Cell and Molecular Biologists. Features resources for biology research and education, including protocols, lab home pages, journals, grants, professional societies, conferences, career information, online courses and biological images. Link

Cell Biology Division of the WWW VL BiosciencesA comprehensive listing of cell biology links divided into the major divisions. Link

Cell Biology InformationThis site contains addresses and hints for the active cell biologist and shall help you to get more information for your scientific work. Link

Cell IntelligenceTwo professors of cell biology argue that cells are intelligent. Read their hypothesis, methods, and bibliography. Link

FRIZ Biochem: new DNA chips using electrical read out technologiesFRIZ is dedicated to expanding the potential applications of microarrays for genomic screening using new DNA chip technologies. We develop new DNA arrays and produce reliable user-friendly biochips. Link

Jeremias AlleyCollection of free Cell Biology resources, organized by subject. Covers a new topic every week! Links to good sites, with descriptions and ranking. The page to visit if you are interested in Cell Biology but dont have a penny! The already published coverages include Mitochondria, ATP Synthase, Proteasomal and Ubiquitin-related Protein Degradation and Crytochromes. Link

Microarray StationLearn about microarrays, tissue microarrays, dna protein peptide and antibody microarrays. Protocols and vendors for gene chips. Also contains links to software and bioinformatics for microarray data analysis and statistics. Link

Molecular and Cellular Biology Resource SiteA graduate student resource site listing links for molecular, cellular, developmental and cytoskeletal biology. Link

The Cell web siteVery nice graphical tutorial for cell biology and microbiology. Link

The Kinesin HomepageA resouce site for information regarding the kinesin motor proteins. Link

Worthington Tissue Dissociation Guidecell isolation introduction, theory, techniques, and use-tested systems PLUS annotated references searchable by multiple criteria. Link

Cell Biology

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Explore Cell Biology | Cellular Biology | Biology Explorer

Faculty RecruitmentTenure-Track Positions

Candidates interested in applying for a position with the Cell Biology and Physiology department at Washington University should view current openings and follow application instructions noted for each group of positions.Staff and Postdoctoral Positions

Congratulations to Laura Westergard and Heather True! Westergard, L. and True, H.L. (2014) Extracellular envionment modulatesLearn more

Congratulations to Laura and Heather on their newest publication in Molecular Microbiology! Westergard, L, and True, HL. (2014) Learn more

Alspach, E, Flanagan, KC, Luo, X, Ruhland, MK, Huang, H, Pazolli, E, Donlin, MJ, Marsh, T, Piwnica-Worms, D,Learn more

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Congratulations to MCB Assistant Professor Stephan Lammel, recipient of the 2019 C.J. Herrick Award in Neuroanatomy! This award from theAmerican Association of Anatomists honors an early-career investigator who has made important contributions to biomedical science and the field of neuroanatomy.

Lammel will be honored at theAAA Closing Awards Ceremony Reception & Dinner in Orlando, Florida, in April 2019.

View all the 2019 AAA award recipients here.

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Department of Molecular & Cell Biology

In cell biology, a bleb is a bulge or protrusion of the plasma membrane of a cell, human bioparticulate or abscess with an internal environment similar to that of a simple cell, characterized by a spherical, bulky morphology.[2] It is characterized by the decoupling of the cytoskeleton from the plasma membrane, degrading the internal structure of the cell, allowing the flexibility required to allow the cell to separate into individual bulges or pockets of the intercellular matrix.[2] Most commonly, blebs are seen in apoptosis (programmed cell death) but are also seen in other non-apoptotic functions. Blebbing, or zeiosis, is the formation of blebs.

Bleb growth is driven by intracellular pressure generated in the cytoplasm when the actin cortex undergoes actomyosin contractions.[3] The disruption of the membrane-actin cortex interactions[2] are dependent on the activity of myosin-ATPase[4]

Bleb formation can be initiated in two ways: 1) through local rupture of the cortex or 2) through local detachment of the cortex from the plasma membrane.[5] This generates a weak spot through which the cytoplasm flows, leading to the expansion of the bulge of membrane by increasing the surface area through tearing of the membrane from the cortex, during which time, actin levels decrease.[3] The cytoplasmic flow is driven by hydrostatic pressure inside the cell.[6][7]

Blebbing is one of the defined features of apoptosis.[4] During apoptosis (programmed cell death), the cell's cytoskeleton breaks up and causes the membrane to bulge outward.[8] These bulges may separate from the cell, taking a portion of cytoplasm with them, to become known as apoptotic blebs.[9]Phagocytic cells eventually consume these fragments and the components are recycled.

Two types of blebs are recognized in apoptosis. Initially, small surface blebs are formed. During later stages, larger so-called dynamic blebs may appear, which may carry larger organelle fragments such as larger parts of the fragmented apoptotic cell nucleus.[10]

Blebbing also has important functions in other cellular processes, including cell locomotion, cell division, and physical or chemical stresses. Blebs have been seen in cultured cells in certain stages of the cell cycle. These blebs are used for cell locomotion in embryogenesis.[11] The types of blebs vary greatly, including variations in bleb growth rates, size, contents, and actin content. It also plays an important role in all five varieties of necrosis, a generally detrimental process. However, cell organelles do not spread into necrotic blebs.

In 2004, a chemical known as blebbistatin was shown to inhibit the formation of blebs. This agent was discovered in a screen for small molecule inhibitors of nonmuscle myosin IIA and was shown to lower the affinity of myosin with actin,[12][13][14] thus altering the contractile forces that impinge on the cytoskeleton-membrane interface.

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Bleb (cell biology) - Wikipedia

The Microbiology degree includes a broad background and education in the sciences, including chemistry, biology, physics, and mathematics as well as specific, focused training in the field of microbiology. Majors complete 42 credits in microbiology departmental courses. Much of the advanced coursework displays an integrated approach to the study of prokaryotic and eukaryotic organisms with a major emphasis in microbial pathogenesis. This includes an analysis of virulence factors, bacterial toxins, lipopolysaccharides, and outer membrane proteins, interactions of pathogens and their products with eukaryotic host cells (cellular microbiology), antigenic variation, contemporary vaccine strategies, bacterial gene regulation (osmoregulation, quorum sensing), bacterial export and secretion, and genetic regulation of bacterial virulence expression.

Prerequisites (State Mandated Common Prerequisites) for Students Transferring from a Florida College System Institution: Students should complete the following prerequisites at the lower level prior to entering the university. If these courses are not taken at the community college, they must be completed before the degree is granted. Unless stated otherwise, a grade of C is the minimum acceptable grade for any prerequisite.

Prerequisites

MAJOR COURSES FOR A B.S. IN MICROBIOLOGY Minimum: 42 credit hours

Foundational courses: (8 hrs)

Core courses: (14 hrs)

Advanced courses: (20 hrs)

Requires: (8 hrs)

Advanced Electives: (12 hrs)

*Please see an Academic Advisor for appropriate selected topics courses.

Supporting Courses in the Natural Sciences [minimum 34 credit hrs]:

OR

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USF :: Department of Cell Biology, Microbiology and ...