How cells join together, Science

Assignment Help:

In a unicellular organism, the interior  region of  the organism  is no longer in contact with the external environment.  Thus simple processes  of  diffusion, phagocytosis, exocytosis and contact with sea water helped in exchanging  the necessary molecules  and nutrients. But a further increase in size and complexity of the organism lead to concentration of the pool of cytoplasm. The fluid in-between the cells was known as interstitialfluids.

These fluids, due to constant exchange of molecules between the various cells lead to changes in the internal environment which influenced the functioning of the cell. Physiology, we learnt earlier,  is concerned with such basic activities as reproduction, growth, metabolism, excitation and contraction as they are carried out within the fine structure  -  the cells, tissues, organs and organ systems of the body. The various body systems of our body are enumerated next.


Related Discussions:- How cells join together

Floating a needle on water, Floating a needle on water Thoroughly dry a...

Floating a needle on water Thoroughly dry a steel needle. Place it on the tines of a dinner fork and gently smash the surface of the water in a dish with the fork. If you are c

Planets., What are all the planets in our solar system?

What are all the planets in our solar system?

How has the earth changed since it was formed, How has the earth changed si...

How has the earth changed since it was formed? Ans) The earth has changed particularly since it was formed. Earth was a ball of rock that was strike and changed by loads of imp

How temperature of the earths layers is changed, How Temperature of the Ear...

How Temperature of the Earth's Layers is changed? How does the temperature of the Earth's interior change as one goes deeper within the Earth? As one might expect, the farther

What are covalent bonds, What are covalent bonds? Covalent bonds are th...

What are covalent bonds? Covalent bonds are those in which electrons are shared by the atoms, and this sharing results in an attraction between the atoms to form a molecule. A

Differences between tumor staging and tumor grading, Describe the differenc...

Describe the differences between tumor staging and tumor grading, and how each is performed. Relate the role of your particular imaging modality in staging and or grading, if any

Management of forest resources, Management of Forest Resources: Conside...

Management of Forest Resources: Considering the ever growing demand of wood and realising the importance of conserving our forest resources, it has become necessary to find alt

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