homeostasis & metabolism

Question 1

How do cells maintain homeostasis?

Answer 1

All organisms must constantly convert chemicals from one form to another

Question 2

What does homeostasis help produce & obtain?

Answer 2

Produce necessary molecules
Obtain usable molecules from food
Produce energy-rich molecules

Question 3

Define metabolism

Answer 3

All the chemical reactions occurring constantly in the cell that maintain homeostasis
Is the orderly step-wise series of chemical reactions from the initial reactants to the final product
Is one reaction leading to the next, highly structured, controlled by enzymes

Question 4

Metabolic pathways

Answer 4

Not possible in bio systems to have a single reaction which produces complex molecules from simple reactants
Many intermediate steps are needed where one pathway can lead to several others
Intermediate products of one pathway can be a starting reactant for another pathway