Controlling Internal Conditions Flashcards
0
Q
How does selective reabsorption work?
A
All the sugar us reabsorbed back into the blood via active transport. The amount of water and mineral ions reabsorbed depends on what is needed by your body.
1
Q
Why can protein not be filtered by your kidneys?
A
Because it is a large molecule
2
Q
How do sugar, amino acids, minerals, water and urea move into the kidney tubules?
A
Via diffusion
3
Q
What does urine contain?
A
Urea and excess water and mineral ions and urobilins.
4
Q
What makes your urine yellow?
A
Urobilins which are yellow pigments that come from the breakdown of haemoglobin in your liver
