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Cells and Their Environment Chapter 8
Cells and Their Environment Chapter 8

... made possible by receptor proteins, such as the one’s in the cell’s membrane.  Receptor proteins--a protein that binds specific signal molecules, which causes the cell to respond. ...
Proteome-wide High Throughput Cell Based Assay for Apoptotic
Proteome-wide High Throughput Cell Based Assay for Apoptotic

... us to further cull the list to 28 clones having the greatest effects on death in U2OS cells. We repeated the assay in a cell line much more resistant to cell death, HEK-293, to find BAX-like genes. We found 9 genes that were BAX-like by our criteria, including Caspase 4, a gene already known to be p ...
32 Protected Cell Companies Feb 2017 CG
32 Protected Cell Companies Feb 2017 CG

``Biology of Cultured Cells``. In: Culture of Animal Cells, 5th Edition
``Biology of Cultured Cells``. In: Culture of Animal Cells, 5th Edition

... the cells under study (see Protocol 8.1), or by using a preformed matrix generated by the Engelberth-Holm-Swarm (EHS) mouse sarcoma, available commercially as Matrigel (see Section 8.4.1). Matrigel is often used to encourage differentiation and morphogenesis in culture and frequently generates a lat ...
Mighty Mitochondria
Mighty Mitochondria

... mitochondria. A mitochondrion is shaped perfectly to maximize its efforts. Mitochondria are very small organelles. You might find cells with several thousand mitochondria. The number depends on what the cell needs to do. If the purpose of the cell is to transmit nerve impulses, there will be fewer m ...
for? of Immune Homeostasis: Molecules to Die FOXO Transcription
for? of Immune Homeostasis: Molecules to Die FOXO Transcription

... dauer arrest, metabolic shift and longevity observed in age-1 mutants (6, 7). Members of the Forkhead superfamily are characterized by the presence of a conserved 110 aa DNA binding domain, called the “forkhead” domain or “winged helix” domain (8). Recently, a new nomenclature for these factors has ...
Appendix 8-Eukaryotes
Appendix 8-Eukaryotes

... The most visible difference between prokaryotes and eukaryotes is the existence of a nucleus which holds the cell's DNA (see figure). This is only one of many important differences, some of which are mentioned below. ...
Water movement between epidermal cells of barley leaves – a
Water movement between epidermal cells of barley leaves – a

... reduced by only 2·5%. Turgor in a trough cell surrounded by a patch of leaking trough cells was reduced by 18·1%. Similarly, significance levels by far exceeded those for ridge cells. Experiments in which only trough cell turgor (but not T1/2) was measured gave similar results, with a reduction in t ...
pGLO workflow - Howard University > Plant Biotechnology
pGLO workflow - Howard University > Plant Biotechnology

... gene is a piece of DNA which provides the instructions for making (codes for) a protein. This protein gives an organism a particular trait. Genetic transformation literally means “change caused by genes,” and involves the insertion of a gene into an organism in order to change the organism’s trait. ...
Transição Epitélio-Mesenquimal durante a gastrulação - ICB-USP
Transição Epitélio-Mesenquimal durante a gastrulação - ICB-USP

... It is now known that EMT is an orchestrated series of events involving alteration of cell-cell and cell-extracellular matrix (ECM) interactions. A typical epithelium is composed of a sheet of epithelial cells that are closely associated with one another. Individual epithelial cells interact with nei ...
Thermal inactivation of Listeria monocytogenes
Thermal inactivation of Listeria monocytogenes

... been considered to 'be only a minor fraction of total enthalpy (Lepock et al., 1988). Peak area is a function of protein concentration and the specific calorimetric enthalpy of the protein (Privalov & Knechninashvili, 1974). Hence, large peaks in thermograms of whole cells will either be due to prot ...
Cell Membranes: Chapt. 6
Cell Membranes: Chapt. 6

... The sodium/potassium pump • All nerve and muscle cells have a high internal potassium ion concentration and a low internal sodium ion concentration. [Ki=166 mM; Ko=5 mM; Nai=18 mM; Nao=135 mM]. • Early on, it was thought that the nerve and muscle membranes were relatively impermeable to these ions ...
Myotonica Kinase Identified Widely Expressed Dystrophia Three
Myotonica Kinase Identified Widely Expressed Dystrophia Three

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... As well as the improvement in microscopes, other technological advances have occurred. These include machines called microtomes that are capable of cutting ultra–thin sections of material. Also the ability to use different chemicals as staining agents. Some stains are taken up selectively by differe ...
Redox signaling: hydrogen peroxide as intracellular messenger
Redox signaling: hydrogen peroxide as intracellular messenger

... implicated in numerous disorders and the general process of aging. Accordingly, the target for ROS action has been studied mainly in relation to these disorders, leading to the identification of irreversibly damaged cellular components. The second messenger role of H2O2 requires reversible modificat ...
PKCδ is Required for Survival of Cells Expressing
PKCδ is Required for Survival of Cells Expressing

Jan 22
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The cancer stem cell: premises, promises and challenges
The cancer stem cell: premises, promises and challenges

... Revival of the CSC concept. In the early nineties, research on hemato­ tumors such as brain cancers25 and colon cancers26–28. For a comprepoietic stem cells was flourishing, and bone marrow transplantation hensive recent overview of these efforts, the reader is referred to ref. 29. had successfully ...
Plasma Membrane and Cell Transport Clicker Questions
Plasma Membrane and Cell Transport Clicker Questions

... membrane help create a barrier for many molecules to allow control of movement. ...
The muscular system
The muscular system

... Muscle is a contractile tissue in animals and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move each other and change the size of the cell. Muscle tissue has four main properties: Excitability (ability to respond to stimuli), Contracti ...
Cell Transport
Cell Transport

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PDF
PDF

... ribosomes, small areas of Golgi apparatus and endoplasmic reticulum (Fig. 6). The mesogloea was absent from the wound margins leaving the two epithelial layers in close contact. Initial contacts across the wound in both layers were not made by interstitial cells but by epithelial cells which were re ...
PENYERAPAN HARA OLEH AKAR - ppsub
PENYERAPAN HARA OLEH AKAR - ppsub

... surrounding soil water. Hence, water enters the root hair cells by osmosis. The root hair cells are now hypotonic to the adjacent root cortex cells. Water then diffuses into these cells until it reaches the cortex region. Water flows through the parenchyma cells (cortex) until it reaches the endoder ...
Detergentsalt resistance of LAP2 in interphase nuclei and
Detergentsalt resistance of LAP2 in interphase nuclei and

... LAP2α localizes to different cytoplasmic and nuclear structures during mitosis Nuclear structures are profoundly reorganized in the course of the cell cycle, involving the disassembly of the NE and the condensation of chromosomes at metaphase, and the post-mitosic re-establishment of nuclear archite ...
The Differences between NAD-ME and NADP
The Differences between NAD-ME and NADP

... individually predominated in distinct lineages (Washburn et al., 2015). In the third model, NAD-ME and NADP-ME subtypes evolved independently from a C3 –C4 intermediate as their most recent common ancestor (Washburn et al., 2015). The evolutionary transition to C4 photosynthesis remains undetermined ...
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Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
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