Why is it valuable for a mammal's body to concentrate urine as it is produced rather...

Why is it valuable for a mammal's body to concentrate urine as it is produced rather than simply having the concentration of solute the same in urine and blood?

*the answer isn't B

Answers

A. If the concentration of solute (and solvent) in urine and blood were the same, an animals would end up excreting lots of water, leading to dehydration

B. Urine needs to be concentrated in order to properly filter toxins from the blood.

C. If the concentration of solutes were higher in the urine than in the blood, water would be remved from the blood causing dehydration in the animal.

D. The concentration of solute in urine is the same as in blood.

Solutions

Expert Solution

It is valuable for a mammal's body to concentrate urine as it is produced because if the concentration of solute in urine and blood were the same , an animal would end up excreting lots of water , leading to dehydration.

An normal healthy human body produces 180 Lt./day filtrate in kidneys and if it would not be concentrated , the body would lead up to dehydration and a reason of death as 180 lt. is a very huge amount.

It is also a reason why we are ureotelic and not ammonotelic as we have limited water resource to filter and excrete the toxins from the blood while the ammonotelic like fishes have unlimited amount of water to excrete the toxins.

gladiator answered 2 years ago

Next > < Previous

Related Solutions

Consider this an essay on how the kidney functions! Terrestrial animals can concentrate their urine by...

Consider this an essay on how the kidney functions! Terrestrial animals can concentrate their urine by establishing an osmotic gradient in the kidney. Describe how the osmotic gradient is established in the kidney and how it is used to concentrate the urine in response to hormonal signaling. A diagram would help with your answer.

Planes and Quadrants Why is it valuable to divide the body into imaginary planes and quadrants?...

Planes and Quadrants Why is it valuable to divide the body into imaginary planes and quadrants? This is for medical terminology class.

he ability to concentrate urine is tightly linked to the countercurrent system between nephron and blood...

he ability to concentrate urine is tightly linked to the countercurrent system between nephron and blood vessels in the medulla. What predictions can you make about the concentration gradient if the system were concurrent? Please explain why you make these predictions

Excretory (Urinary) System How is urine produced? Include each step of urine production in the nephron.

A normal human body yields around 1.5 liters of urine per day althouvh the total urine...

A normal human body yields around 1.5 liters of urine per day althouvh the total urine filtrate is 1,800 liters per day. Can yoh explain the mechanisms that allow human body to return this significant amount of water to the body fluids?

Trace the pathway of urine formation from the nephron/collecting duct until urine leaves the body through...

Trace the pathway of urine formation from the nephron/collecting duct until urine leaves the body through the urethra. Be sure to include all structures urine passes before it exits at the external urethral orifice. Note the differences in the male and female urethra. Draw and label the parts of the uriniferous tubule. Include all parts of the nephron and the collecting duct. List the sequence of filtrate moving through the nephron to collecting duct in the correct sequence.

Question