Molluscan kidney, Biology

Assignment Help:

Molluscan Kidney

In molluscs, the coelom is represented by the pericardial cavity and the cavities of the kidneys and gonads. The pericardial coelom opens into the renal cavity via the renopericardial duct. Thus the molluscan kidney is a modified coelomoduct of the metanephridial type opening into the pericardial cavity at one end and the ' mantle cavity at the other.

1355_Molluscan Kidney.png

Figure: Kidney and its relationship to the pericardium in the snail

In the molluscs, an initial fluid is formed in the kidney by ultrafiltration of the blood through the wall of the heart. Reabsorption of valuable materials hke glucose and secretion of unwanted compounds occur subsequently resulting in the formation of the final urine. There is some evidence that in the abalone, Haliotis, glucose re-absorption takes place primarily in the left kidney, while secretion of unwanted compounds occurs in the right kidney. Hydrostatic pressure of the blood provides the filtration pressure and application of back pressure stops urine production.

 

 

 

 

 


Related Discussions:- Molluscan kidney

Explain acute infections fever, Explain Acute Infections Fever Acute In...

Explain Acute Infections Fever Acute Infections Fever:  Acute fevers are of short duration with acute symptoms, the body temperature may rise to above 104°F. Examples of such i

What is rflp, Question 1 Write a short note on the following              ...

Question 1 Write a short note on the following                    1 Microinjection                    2 Bio catalysis Question 2 What is RFLP? With help of schematic diagr

Explain terms retrogradation and gelatinization, What do you understand by ...

What do you understand by the terms retrogradation and gelatinization? The realignment of the amylose and amylopectin and swollen starch granules to form a pocket is termed

Organic molecules, Organic Molecules Some organic molecules in life...

Organic Molecules Some organic molecules in life are Carbohydrates and Lipids à C, H and O Proteins à C, H, O, N & sometimes S Nucleic acids à C, H, O, N & P

What is the principle of automated blood cell counters, Question 1 Discuss...

Question 1 Discuss various methods of blood collection in a laboratory. Add a note on collection of blood by using vacutainers. Make a table indicating the color of vacutainer tub

Sickle Cell, Sickling occurs in deoxyhemoglobin S, but not in oxyhemoglobin...

Sickling occurs in deoxyhemoglobin S, but not in oxyhemoglobin S. Oxyhemoglobin has a small hydrophobic \"pocket\" in a ß chain region located in the interior of the protein. In de

Endomitosis, #questwhy and where endomitosis happens?ion..

#questwhy and where endomitosis happens?ion..

Explain positive staining technique, Explain Positive Staining Technique? ...

Explain Positive Staining Technique? Here, a stain has a positively charged chromophore that gets attached to the negatively charged outer surface of the microbial cell and thu

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