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Chapter 2
Chapter 2

... 2) Located near the outside of stem or root 3) Secondary tissues produced 3. Intercalary Meristems a. Found in many plants which do not have a vascular or cork cambium (e.g., grasses) b. Occur in regions at some distance from apices (occur in vicinity of nodes and at the base of leaves) c. Produce i ...
Chapter 7: Structure and Function - Summary
Chapter 7: Structure and Function - Summary

... COMPOSED OF CELLS". The next year, German Zoologist Theodor Schwann reported that ANIMALS are also made of CELLS and proposed a cellular basis for all life. 1855, German Physician Rudolf Virchow induced the cell theory: ...
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C. Introduction to Multicellularity

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Anatomical Organization in Multicellular Organisms is Based on Cell

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... slate” cells from which other types of cells can arise. The defining characteristic of human stem cells is their ability to self-renew (provide an exact copy of themselves) while maintaining the potential to develop into other types of cells, such as blood, brain or heart. Although stem cells from di ...
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Anton van Leeuwenbock

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CBC Test Description - Minidoka Memorial Hospital

... respond to the site, attack and destroy the bacteria, virus, or other organism causing it. The number of white blood cells is sometimes used to identify an infection or monitor the body’s response to cancer treatment. White blood cell types (Automatic Differential): The major types of WBC’s are neut ...
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Mitosis



Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.
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