granule

(noun)

a small structure in a cell

Related Terms

  • leukocyte
  • pathogen
  • macrophage

Examples of granule in the following topics:

  • 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).
  • Plant Responses to Gravity

    • Amyloplasts (also known as statoliths) are specialized plastids that contain starch granules and settle downward in response to gravity.
  • 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.
  • 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
  • Connecting Other Sugars to Glucose Metabolism

    • The entire globular granule may contain around 30,000 glucose units.
  • 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.
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