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Classification Summary
Classification Summary

... Unicellular or Multi-cellular or both Typical Reproduction (asexual, sexual or both) Body system (none, radial, or bilateral) Can cells form tissues? Yes or no? Capable of movement? How? ...
No Slide Title
No Slide Title

... Mitochondria and the immune system • Mito play important role in recognizing & fighting viruses • Via RLR (retinoic acid-inducible receptors) pathway that detects dsRNA • MAVS (mitochondrial antiviral signaling) protein on MOM is key • dsRNA receptors bind MAVS & trigger interferon & cytokine ...
Biology - The Student Room
Biology - The Student Room

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ANIMAL CELL PLANT CELL
ANIMAL CELL PLANT CELL

... Lysosomes – These contain enzymes needed to destroy unwanted material in the cell. Mitochondria – These are the power stations of the cells as they provide the cell with all the energy it needs through respiration. Vacuole – This is a large storage place filled with a substance called “cell sap”. ...
Preliminary evidence of a new microbial species capable of
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A1980KG03400001

... drops, but allowed them to move to the site closest to the neighboring attracting drop. Such a positive response could be observed with aggregates of amoebae or with extracts of cells. Soon it became clear that the chemists' request for milligrams of pure attractant molecules never could be satisfie ...
Endocytosis - Cloudfront.net
Endocytosis - Cloudfront.net

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Bacteria - smsk

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cells, exhibit the morphology and growth properties of
cells, exhibit the morphology and growth properties of

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Esponjas calcáreas (clase Calcarea)

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Chitin is a component of ______ cell walls

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Cell Transport Powerpoint - Mater Academy Lakes High School
Cell Transport Powerpoint - Mater Academy Lakes High School

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Chapter 8 – The Cell Cycle

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THE CELL THEORY A. All living organisms are made up of one or

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What is the nucleolus?
What is the nucleolus?

... The average human body is known to have about 1.3 trillion animal cells, leading to the same amount of a nucleolus. But adding on bacteria and similar cells to germs, there are about 100,000,000,000,000 cells in an animal and/or human. Although, in some cases (due to certain situations), the amount ...
Basic Hematology
Basic Hematology

... a) This is now determined directly by electrical or flow cytometric methods. b) it is always calculated from the spun hematocrit. c) it is determined by light microscopy. d) it is determined by electron microscopy. e) it is derived from the white cell count. Explanation: The red cell MCV is measured ...
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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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