granule
(noun)
a small structure in a cell
Examples of granule in the following topics:
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White Blood Cells
- One of the two main groups are the granulocytes, which contain granules in their cytoplasm, and include the neutrophils, eosinophils, and basophils ( a).
- The second main group is the agranulocytes, which lack granules in their cytoplasm, and include the monocytes and lymphocytes ( b).
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Plant Responses to Gravity
- Amyloplasts (also known as statoliths) are specialized plastids that contain starch granules and settle downward in response to gravity.
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Epinephrine and Norepinephrine
- Norepinephrine is synthesized from dopamine by dopamine β-hydroxylase in the secretory granules of the medullary chromaffin cells and is released from the adrenal medulla into the blood as a hormone.
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Contractile Vacuoles in Microorganisms
- Structure of Euglena: 1 - Flagellum; 2 - Eye spot / Pigment spot / Stigma; 3 - Photoreceptor; 4 - Short second flagellum; 5 - Reservoir; 6 - Basal body; 7 - Contractile vacuole; 8 - Paramylon granule; 9 - Chloroplasts; 10 - Nucleus; 11 - Nucleolus; 12 - Pellicle
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Connecting Other Sugars to Glucose Metabolism
- The entire globular granule may contain around 30,000 glucose units.
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Natural Killer Cells
- After the NK cell detects an infected or tumor cell, its cytoplasm secretes granules comprised of perforin: a destructive protein that creates a pore in the target cell.