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

Coordination and control, how is an increase in glucose concentration contr...

how is an increase in glucose concentration controlled in the human body?

Implantation, IMPLAN TA TIO N - Attachement of blastocyst on the ...

IMPLAN TA TIO N - Attachement of blastocyst on the endometrium of the uterus is called implantation. Generally it occurs 7th day after fertilisation. (6-10 days). Blas

Define drug effects on food intake - gastro intestinal tract, Define Drug E...

Define Drug Effects on Food Intake - gastro intestinal tract? Affect the gastro intestinal tract: Gastrointestinal irritation and ulceration are serious problems with many drug

Disorder of skeleton and joints, DISORDER OF SKELETON AND JOINTS - 1 ...

DISORDER OF SKELETON AND JOINTS - 1 .      Sprain - It involves a stretching or tearing of tendons or ligaments. 2.      Arthritis - It is infalmation of joints.

Determine the improper occlusal scheme, Improper Occlusal Scheme This i...

Improper Occlusal Scheme This is an important cause of failure as the implant are more sensitive to occlusal trauma and leads to prosthetic failure and bone loss. The susceptib

Define the term underweight, Define the term Underweight? Just as overw...

Define the term Underweight? Just as overweight is the result of a positive energy balance irrespective of the etiology, underweight results when the energy balance is negative

Explain the term of measurement of height in veous pressure, Explain the te...

Explain the term of measurement of height in veous pressure? Measurement of Height: Measurement of height of venous pressure is done from the sternal angle of Louis verticall

The key enzymes of gluconeogenesis, The key enzymes of gluconeogenesis,incl...

The key enzymes of gluconeogenesis,include: a)  Pyruvate carboxylase b)  Phosphoenol pyruvate carboxykinase c)  Fructose- 1,6-bisphosphatase,  and d)  Glucose-6-phosph

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