Osmoregulation in protozoans, Biology

Assignment Help:

Osmoregulation in Protozoans

Osmoregulation or water balance in protozoa is accomplished by contractile vacuoles. One to several contractile vacuoles may be present within the animal which may or may not have fixed sites in the cytoplasm and may have contributory canals or other vesicles opening into it.

These are water and ion regulating structures, acting as pumps to remove excess water from the cytoplasm. All freshwater protozoans have functioning systems of contractile vacuoles whereas, marine and parasitic forms have these less frequently.


Related Discussions:- Osmoregulation in protozoans

Particulate theory - pre-mendelian theory, Particulate Theory (i)      ...

Particulate Theory (i)         Maupertuis (1689-1759) proposed that the body of each parent give rise to minute particles. (ii)         In sexual reproduction, these particl

Pathogenic bacteria, Pathogenic bacteria Heterotrophic bacteria could ...

Pathogenic bacteria Heterotrophic bacteria could be divided into saprophytes and parasites. Saprophytes normally do not cause any disease and they survive on dead or decaying

How the wet beriberi developed rapidly, How the Wet beriberi Developed Rapi...

How the Wet beriberi Developed Rapidly? Oedema is the significant feature of wet beriberi. It may develop rapidly and involve not only the legs but also the face, trunk and ser

Digestive system, I want to know how does our digestive system work

I want to know how does our digestive system work

What is osmotic pressure, Q What is osmotic pressure? Osmotic pressure ...

Q What is osmotic pressure? Osmotic pressure is the pressure produced in an aqueous solution by a region of lower solute concentration upon a region of higher solute concentrat

Illustrate oil-bearing materials, Illustrate oil-bearing materials Oil...

Illustrate oil-bearing materials Oil contents for vegetable oil-bearing materials vary between 18% and 68% of the total weight of the seed, nut, kernel or fruit as indicated i

What is this atp synthesis called, How in the respiratory chain do electron...

How in the respiratory chain do electrons from FADH2 and NADH2 passing through cytochromes liberate energy for the ATP synthesis? What is this ATP synthesis called? FADH2 and N

Define the interaction of vitamin c with other nutrients, Define the Intera...

Define the Interaction of Vitamin C with other Nutrients? Having gone through the discussion above it must be evident to you that nutrients are interdependent and are related t

Foods implicated in botulism, The types of foods involved in botulism vary ...

The types of foods involved in botulism vary according to food preservation and eating habits in different regions. Any food that is conducive to outgrowth and toxin production, th

Nutrition affecting the growth of microorganism, Q. Can Nutrition affecting...

Q. Can Nutrition affecting the growth of microorganism? Ans. Food is food to humans and microbes - be it carbohydrates, proteins or fats. The nutritional requirements of b

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