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Cultural Morphology File
Cultural Morphology File

... Different Size, Shape and Arrangement of Bacterial Cells Bacteria are prokaryotic, unicellular microorganisms, which lack chlorophyll pigments. The cell structure is simpler than that of other organisms as there is no nucleus or membrane bound organelles. Due to the presence of a rigid cell wall, ba ...
Diffusion
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... The diffusion of water across a selectively permeable membrane is called osmosis. Regulating the water flow through the plasma membrane is an important factor in maintaining homeostasis within a cell. Most cells whether in multicellular or unicellular organisms, are subject to osmosis because they a ...
Section 7.3 Cell Transport
Section 7.3 Cell Transport

... Molecular Transport A considerable portion of the energy used by cells in their daily activities is devoted to providing the energy to keep this form of active transport working. The use of energy in these systems enables cells to concentrate substances in a particular location, even when the forces ...
Bioactive compounds from cultured (mainly marine) micro
Bioactive compounds from cultured (mainly marine) micro

... B59/KA-1 inhibits platelet activation and reverses platelet aggregation like the PI3kinase inhibitor Wortmannin The intact shape change response to thrombin peptide indicates that the platelets are viable ...
Powerpoint
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BioFlix Study Sheet for Membrane Transport Part I

... Part III. What are two kinds of passive transport? How are they similar and how are they different? ...
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Structure of prokaryotic cells

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Name: Period: Date
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Cell Place Project
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Bromodeoxyuridine
Bromodeoxyuridine

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Eukaryotic Cell Structure: Organelles in Animal

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... Please answer the following short answer questions. Keep in mind what you observed during today’s lab activity. Describe the shape of the plant cells. Describe the shape of the animal cell. What structures make them different? Why would they need to be different? ...
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Serial endosymbiotic theory (SET)
Serial endosymbiotic theory (SET)

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... professionals to evaluate the cytological test as a result, the vast majority of women in the developing world do not have access to life-saving screening programs (Goldie, 2005: 2158). To reach the main goal of cervical cancer screening we need to find an accessible, simple, low cost, highly sensiti ...
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... into drugs by means of peptide stapling and actually induce apoptosis in cancer cells (6). Each of these four reviews make several cogent shared points, even though each deals with substantively different aspects of the process by which cell death is governed in nature. First, the processes governin ...
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The Cell as a Keebler Factory

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1.2 Ultrastructure of Cells 2016

... 1.2.A2 Prokaryotes divide by binary fission. Prokaryotes reproduce asexually using the process of binary fission • The DNA is replicated semi conservatively [2.7.U1] • The two DNA loops attach to the membrane • The membrane elongates and pinches off (cytokinesis) forming two separate cells • The tw ...
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Cellular differentiation



In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.
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