Question

Mammals such as the vampire bat have the ability to generate a urine with a concentration of approximately 3,600 milliosmoles (mOsm). If the concentration of their blood is approximately 300 mOsm, by producing a concentrated urine, their water loss is:_______________.

Answer 1

Water is reduced by approximately 11/12.

Step-by-step explanation:

Concentration of blood = 300 mOsm

COncentration of urine = 3600 mOsm

Water loss = ?

Let x be the water loss

So,

The concentration is 3600 mOsm from 300 mOsm of blood

From 1 mOsm of urine = the concentration of blood is
`(300)/(3600) = (1)/(12)` mOsm

`3600 = 300 ( 1 - x)\\\\12 = 1 -x\\\\x = -11`

Negative sign indicates the loss.

water loss =
`11 X (1)/(12) = (11)/(12) \\\\`

Therefore, the water loss is 11/12