Chapter 4: excretory system Flashcards
1
Q
What is metabolism
A
All the energy conversions and chemical reactions that occur in the cell
2
Q
What is excretion?
A
To get rid of metabolic waste products
3
Q
What are examples of metbolic waste ?
A
Urea and carbon dioxide
4
Q
What is secretion ?
A
To produce useful susbstances such as saliva ,enzymes and biles
5
Q
What is defection
A
To get rid of undigested redidues
6
Q
Name 2 ways we produce urea?
A
Skin (sweat) and the bathroom(urine)
