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Cytoplasmic determinants in the egg.
Cytoplasmic determinants in the egg.

... determinants, like the two shown here, are unevenly distributed in the egg. After fertilization and mitotic division, the cell nuclei of the embryo are exposed to different sets of cytoplasmic determinants and, as a result, express different genes. ...
Cytotoxic Effects of Nanoparticles Assessed In Vitro and In Vivo
Cytotoxic Effects of Nanoparticles Assessed In Vitro and In Vivo

... comparison was shown with micro-sized particles. Here, we report the investigation on the toxicity of three different nanoparticles along with a micro-sized paticle as a control. Moreover, the effect of size within the same nanoparticle was assessed. The following human cell lines were used; liver ( ...
Sorting of proteins to vacuoles in plant cells
Sorting of proteins to vacuoles in plant cells

... All eukaryotic cells assemble their secretory pathway into a series of organelles as a means of defining compartments with distinct functions (reviewed by [83]). The secretory pathway begins with the endoplasmic reticulum (ER). In general, soluble proteins that enter the secretory pathway are co-tra ...
Ch_47
Ch_47

... determinants, like the two shown here, are unevenly distributed in the egg. After fertilization and mitotic division, the cell nuclei of the embryo are exposed to different sets of cytoplasmic determinants and, as a result, express different genes. ...
c-IAP1 shuttling from the nucleus to the Golgi apparatus in cells
c-IAP1 shuttling from the nucleus to the Golgi apparatus in cells

... The IAPs (inhibitors of apoptosis proteins) have been initially defined as natural cellular inhibitors of cell death. These proteins were identified in baculoviral genome as regulators of host-cell viability during virus infection1 and cellular orthologues were subsequently described in yeast, nemat ...
POTASSIUM BALANCE
POTASSIUM BALANCE

... The tubular defects in sodium chloride transport are almost identical to that seen with chronic ingestion of a loop diuretic (mimicking Bartter syndrome) or a thiazide diuretic (mimicking Gitelman syndrome). – Impaired sodium chloride reabsorption leads to mild volume depletion and activation of the ...
C. Dermis
C. Dermis

... 1.31) are connected with each other in the dermal deep layer to form a horizontal network (subcutaneous plexus). With numerous branches ascending from the subcutaneous plexuses, the arteries form a second network in the papillary lower layer (subpapillary plexus). The arterioles ascend through the p ...
Cell Wall Architecture Prerequisite for the Cell
Cell Wall Architecture Prerequisite for the Cell

... 30 d, individual cells showed more than two divisions, resulting in colony formation. It is difficult and meaningless to estimate the number of cell divisions at this stage. Osmotic stability of the protoplasts and regenerated cells—We investigated the osmotic stability of the regenerated cells to c ...
Cell Wall Architecture Prerequisite for the Cell Division in the
Cell Wall Architecture Prerequisite for the Cell Division in the

... However, they showed networks of microfibrils lifted up from the plasma membrane at the very early stage of cell wall regeneration of tobacco protoplasts. No microfibrillar lamellae were shown to be closely associated with the plasma membrane. In the present investigations, we have found two phases ...
Identifying proteins required for chromatin organization using a GFP
Identifying proteins required for chromatin organization using a GFP

... machinery from interacting with target genes ultimately affecting their expression. The correct organization of chromatin depends on a variety of proteins. Some of these proteins, such as histones, have been identified and characterized, but others remain unknown. Many proteins that help with the ...
Cell Wall
Cell Wall

... • Functions • Mechanical functions – Like a skeleton around each cell – Determine shape and size of cell – Determines the limits of expansion and water uptake ...
Principles of Bacterial Toxin Entry
Principles of Bacterial Toxin Entry

... targets. To be successful, however, intracellularly acting toxins must access their substrates inside target cells. This is no small feat, as the eukaryotic plasma membrane is a formidable gatekeeper that effectively restricts macromolecules such as toxins from passing freely into cells. To overcome ...
PLACE TITLE HERE USING ALL UPPER CASE
PLACE TITLE HERE USING ALL UPPER CASE

... immature, notochordal cells (NCs) to mature, chondrocyte-like NP cells. Because NP cells are responsible for the synthesis of a functional extracellular matrix, this cellular transition is believed to be involved in the progression of disc degeneration. Morphologically, NCs can be differentiated fro ...
Amoeba - Edmonds
Amoeba - Edmonds

... AMOEBA. A tiny blob of colorless jelly with a dark speck inside it--this is what an amoeba looks like when seen through a microscope. The colorless jelly is cytoplasm, and the dark speck is the nucleus. Together they make up a single cell of protoplasm, the basic material of all living things. Amoeb ...
Seminar Paper - LENS - The University of Auckland
Seminar Paper - LENS - The University of Auckland

... undernourished  in  2007.    Just under a quarter of these people were from the Asia‐Pacific region, excluding India  and China.  Over a quarter of the total were in India (FAO, 2008). Figure 1 shows a world map as we normally see it,  based on land area.  Figures 2‐4 show the world according to cur ...
Cell Structure
Cell Structure

... RNA – The information in the RNA is used to make proteins ...
Mitosis - RuthenbergAP
Mitosis - RuthenbergAP

... • Cytokinesis in plants, which have cell walls, involves a completely different mechanism. • During telophase, vesicles from the Golgi coalesce at the metaphase plate, forming a cell plate. • The plate enlarges until its membranes fuse with the plasma membrane at the perimeter, with the contents of ...
Herpesvirus Saimiri-induced Proteins in Lyrically Infected Cells. I
Herpesvirus Saimiri-induced Proteins in Lyrically Infected Cells. I

... [3SS]methionine. Twenty-one of these were synthesized starting at 9 to 10 h post-infection and are most likely late proteins, since their synthesis increased further and they could also be identified in purified virions (Fig. 2b). Early proteins could be detected in trace amounts only. The use of in ...
Synthesis and sorting of proteoglycans
Synthesis and sorting of proteoglycans

Application of Disinfectants
Application of Disinfectants

...  Type of acids: Phosphoric, Hydrochloric, hydroxyacetic acids ...
JEOPARDY
JEOPARDY

... Mitosis - $500 Each chromosome makes a copy of itself ...
Ch4Carbonand5Macromolecules
Ch4Carbonand5Macromolecules

... Nature of science: Looking for patterns, trends and discrepancies— most but not all organisms assemble proteins from the same amino acids (3.1). Understandings: • Amino acids are linked together by condensation to form polypeptides. • There are 20 different amino acids in polypeptides synthesized on ...
Photosynthesis Worksheet - d
Photosynthesis Worksheet - d

... carnivores get from eating to the energy captured by photosynthesis. (4,5) ...
Virology: An introduction
Virology: An introduction

... In many cases, the molecular machinery works in part by subverting more elaborate elements of the host cell apparatus for carrying out related processes. The principles of virus structure thus arise from the requirements imposed by the functions of viral molecular architecture. There is more bio ...
Endocytosis unplugged: multiple ways to enter the cell
Endocytosis unplugged: multiple ways to enter the cell

... stem cells [38]. In these embryonic stem cells, fluidphase tracer uptake, as an indicator of stimulated macropinocytosis, was rescued by reintroduction of dynamin-1 or 2 [38], suggesting that dynamin is crucial for this form of macropinocytosis. However, at this stage it is not clear whether dynamin ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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