Top answers

Explain how water is re-absorbed in the kidney

It would be helpful for you to have a diagram of a kidney nephron in front of you as you read this explanation. The body has a clever mechanism to conserve water levels, it creates a strong salt concentratio...
CD
Answered by Charlotte D. • Biology tutor
35311 Views

Why can sodium chloride conduct electricity in the molten state but no in the solid state?

In order to conduct electricity a substance must have charge particles, such as electrons and ions, that are free to move freely through it. In the solid state, ionic compounds such as sodium chloride have t...
OM
Answered by Olavo M. • Chemistry tutor
178894 Views

What is selective reabsorption?

Selective reabsorption occurs because during ultrafiltration, important components of the blood are filtered out and they need to be reabsorbed into the body. When the filtrate leaves the Bowman's capsule an...
CD
Answered by Charlotte D. • Biology tutor
42375 Views

Describe how an increase in temperature affects the equilibrium of the main exothermic reaction of the Haber process?

Firstly you must recognize that the reaction that is referred to is the one where nitrogen combines with hydrogen to produce ammonia: N2 + 3H2 --> 2NH3. When talking about changing conditions to a system ...
OM
Answered by Olavo M. • Chemistry tutor
7834 Views

What is ultrafiltration?

Ultrafiltration is a process in the kidney by which urea, salt, water and glucose etc. is extracted from the blood. When blood passes through the top of the nephron, it enters a structure called the glomerul...
CD
Answered by Charlotte D. • Biology tutor
55780 Views