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

Renaissance (1440-1540), Renaissance (1440-1540): The Renaissance was a...

Renaissance (1440-1540): The Renaissance was a revolutionary movement. It marked a definite and deliberate break with the past.  It swept away the medieval forms of economy, of

Explain genetic theory of ageing, Explain Genetic Theory of ageing Rate...

Explain Genetic Theory of ageing Rate of ageing varies between species. The difference is in the genetic changes in the species. Thus it can be said that gradual impairment of

Where to find fossils, Where to find fossils In some localities fossils...

Where to find fossils In some localities fossils may be found in stone quarries or where there are rock out- crops. Try to search someone in the community who knows about fossi

Define the ear canal, Define the Ear Canal The other part of the outer ...

Define the Ear Canal The other part of the outer ear is the ear canal. The ear canal, which conveys the sound to the eardrum, is a rather tortuous canal. It is lined with skin,

States in which water found during the water cycle, Q. What are the differe...

Q. What are the different states in which water is found during the water cycle? During the water cycle, water is found in solid state (snow, ice, etc.), liquid state (ground wa

How is our atmosphere different from the atmospheres?, How is our atmospher...

How is our atmosphere different from the atmospheres on Venus and Mars? Earth's atmosphere is different from those of Venus and Mars. This difference lies essentially in their c

Explain what diffusion is, Explain what Diffusion is? Diffusion, we lea...

Explain what Diffusion is? Diffusion, we learnt is a simple process of movement of individual molecules from one region to another. Figure illustrates passive transport where m

Precautions for fire prevention, PRECAUTIONS FOR FIRE PREVENTION : In the ...

PRECAUTIONS FOR FIRE PREVENTION : In the event of fire or explosion occurring there should be a prearranged plan of the necessary action to be taken. All personnel must be made aw

Explain the factors affecting peripheral resistance, Explain the Factors Af...

Explain the Factors Affecting Peripheral Resistance i) If more than 30% of the blood volume of a person is lost through bleeding (haemorrhage), the compensatory mechanism may f

A&P, Most of the plasma is composed of?

Most of the plasma is composed of?

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