Excretion Flashcards
1
Q
What is urea ?
A
A waste product formed from the breakdown proteins, excreted in urine.
2
Q
What is the role of the kidneys ?
A
The kidneys filter blood and remove waste and regulate water and electrolyte balance.
3
Q
What are nephrons ?
A
The functional units of the kidney that carry out filtration and reabsorption.
4
Q
What is urine ?
A
The liquid waste excreted from the body, containing urea and excess substances.
5
Q
How do lungs contribute to excretion ?
A
The lungs expel carbon dioxide, a waste product of respiration.
