What are the major cells of which poriferans are made, Biology

Assignment Help:

Q What are the major cells of which poriferans are made?

Sponges have their external wall covered by flat cells called pinacocytes and having pores well-delimited by special cells called porocytes. The internal wall is filled with choanocytes, flagellate cells specialized in phagocytosis of food brought to the central cavity the choanocyte flagella also sustain the water flux inside the sponge.

Between the inner and the outer coverage of the poriferan body there are cells with amoeboid movement by pseudopods, the amoebocytes since they are embedded in connective matrix, distribute nutrients and amoebocytes move to other cells and they also produce spicules that like a primitive skeleton fill the tissue and support the body structure. Some poriferans have an interior skeleton, an endoskeleton, made of organic and spicules fibers.


Related Discussions:- What are the major cells of which poriferans are made

Explain some side effects of carbohydrate loading, Explain some side effect...

Explain some side effects of carbohydrate loading? Some potential side effects of carbohydrate loading are: Muscle , stiffness Diarrhoea Chest Pain Depres

How are the heterotrophic beings divided, How are the heterotrophic beings ...

How are the heterotrophic beings divided in the ecological study of food interactions? The Heterotrophs are divided into consumers and decomposers. An ecosystem can survive wit

Cell theory, what year did virchow state where a cell exists there must hav...

what year did virchow state where a cell exists there must have been a pre-existing cell

Population and sigmoid curve, Name two possible why the number of live bact...

Name two possible why the number of live bacteria cell have reached the stationary growth by 60hrs and start to die off after 12hrs?

Theory of evolution and its rival theories try to solve, What is the proble...

What is the problem that the theory of evolution and its rival theories try to solve? The problem that the theory of simply evolution, or evolution, and its rival theories try

Define some food related problems in parkinson''s disease, Define Some Food...

Define Some Food Related Problems in parkinson's disease? As the disease progresses some food related difficulties appear. These are: 1. Difficulty in food preparation

Nutrition, list and explain the modes of nutrition

list and explain the modes of nutrition

Explain membrane permeability, A pure  phospholipid  bilayer with  its  hyd...

A pure  phospholipid  bilayer with  its  hydrophobic  interior,  is permeable  to water and gases such as O2, CO2, N2 and small uncharged  polar molecules such as urea, ethanol, bu

Malnutrition related diabetes mellitus, Q. Explain about Malnutrition Relat...

Q. Explain about Malnutrition Related Diabetes Mellitus? This type of diabetes has been categorized as a separate entity. 'if is 'Men seen commonly in developing countries, 1n

Categorisation of neuropsychological assessment, Categorisation of Neuropsy...

Categorisation of Neuropsychological Assessment One can divide neuropsychological assessment into two areas: i) Comprehensive and ii) Specialised assessment. Comprehen

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