Dictionary > Cnidocyst

Cnidocyst

Definition
noun, plural: cnidocysts
A capsule containing thread-like tube (commonly barbed and toxic) found inside the cnidocyte of Cnidarians
Supplement
Cnidocysts are a distinguishing feature of Cnidarians (hence the name). These capsules are found inside the cnidocytes, which are specialized cells found in their tentacles. These capsules will evert thread-like tube upon stimulation. The tube is barbed and often contains toxin, and thus delivers a paralyzing sting to capture a prey or to ward off enemies.
Synonym(s):

See also:

  • cnidocyte


  • You will also like...

    Physical growth
    Physical Development in Humans

    This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..

    human respiratory system
    Respiration

    The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..

    Population Growth and Survivorship
    Population Growth and Survivorship

    This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..

    Pikas are an indicator species for climate change
    Indicator Species and Endangered Species

    Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..

    genes controlling growth and development
    Control of Growth & Development

    Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

    Growth and Plant Hormones
    Growth and Plant Hormones

    Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..

    Related Articles...

    No related articles found

    See all Related Topics