What are cnidocytes, Biology

Assignment Help:

What are cnidocytes? What is the name of the capsule inside the cnidocyte? What are the biological functions of this structure?

Cnidocytes are specialized cells present in coelenterates. They are found in the epidermis and have toxic substances that can hurt, paralyze or even kill other animals.

Every cnidocyte has an internal capsule know as nematocyst where the actual urticating substance is stored. When a cnidocyte is excited it causes the nematocyst to expose a filament having the toxic chemical.

Cnidocytes and their nematocysts have the biological functions of defending the individual from external aggression and of helping to capture their prey.

 


Related Discussions:- What are cnidocytes

Show the peptide found in the brain, Q. Show the Peptide found in the brain...

Q. Show the Peptide found in the brain? There are as many as 300 peptide neurotransmitters found in the brain. Peptide is a short protein consisting of fewer than 100 amino aci

Explain sexual arousal mechanism in women, Q. How does the sexual arousal m...

Q. How does the sexual arousal mechanism in women facilitate fecundation? During sexual arousal in women the vagina secretes substances to neutralize its acidity thus allowing

Levels of prevention and role of a nurse, LEVELS OF PREVENTION AND ROLE OF ...

LEVELS OF PREVENTION AND ROLE OF A NURSE: Caplan describes the levels of  prevention as follows:  1)   Primary Prevention  It is concerned with  reduction of  incidence

Name the one autosomal dominant and autosomal, Name the one autosomal domin...

Name the one autosomal dominant and autosomal recessive Mendel an disorder in Humans. a) How is the action of exonucluease dissimilar from that of end nuclease? b) India has

Define protein requirements of infants, Define Protein requirements of infa...

Define Protein requirements of infants? Protein allowances of infants should meet both growth and maintenance requirements. Protein allowances are computed from the protein con

Discontinuous variation in human populations, Give two examples in each cas...

Give two examples in each case of (a) continuous, (b) discontinuous variation in human populations.    a) Continuous variation: for example, weight, height, intelligence, ha

How sex chromosomes of the xy system -sex determination, Concerning the sex...

Concerning the sex chromosomes of the XY system which type of gamete do the male and the female individuals respectively produce? An Individual of the female sex is XX and thus

How are the male gametes of gymnosperms formed, Q. How are the male gametes...

Q. How are the male gametes of gymnosperms formed? What is the relationship between the pollen grains and the concept of alternation of generations? In the male strobiles (cone

Explain transfer of culture from one liquid media to another, Explain Trans...

Explain Transfer of Culture from One Liquid Media to another Liquid Media? 1. Inoculating loop is to be held in the right hand. It is sterilized by incineration in the inner bl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd