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Cell Transport Review Answers
Cell Transport Review Answers

... e) What will happen to the level of the solution on each side? Side A will increase; side B will decrease 11.Red blood cells neither gain nor lose water when put into 0.9% NaCl. a) What term would you use to describe the tonicity of 0.9% NaCl for Red blood cells? isotonic b) Are the solutions below ...
Induction of cell processes by local force
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The NIMA-related kinase NEK1 cycles through the nucleus
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... nucleus. NEK1 therefore may be one of a cohort of cystogenic proteins that affects both ciliary and nuclear signaling. Our data add support to the idea that defective ciliary signaling is transduced into aberrant regulation of nuclear gene expression, which may be an important component of the etiol ...
Supporting Text S2
Supporting Text S2

... to the last cycle is also unknown for the mutants. This measurement is challenging to be done even in wt embryos, because each cycle lasts about 10 minutes and nuclear size changes substantially from early-interphase to late-anaphase. However, the haploid nucleus seems to be similar to wt until nc14 ...
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Profiling T Cell Activation Using Single
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... protein from prior in vivo activation. Additionally, the persistence of proteins prevents kinetic analysis of changes in gene expression in response to stimulation by Ag as a means to distinguish among T cell subsets and identify single-cell signatures. To overcome these drawbacks, we focused on the ...
lecture 5
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... The structure of mitochondria is appropriate to the task. The inner membrane is folded to form little shelves called cristae. These project into the matrix, an inner space filled with a gel-like fluid , The matrix of a mitochondrion contains enzymes The number of mitochondria in cells is highly vari ...
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... because it could not produce energy for the organism. p. Organism would die because it could not make proteins. Which cell organelle is most similar to the hallways in a building? (APPLYING) THINK: A hallway is hollow and things can move from one place to another through them. Which organelle does t ...
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primary growth of roots

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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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