Metabolism Flashcards
1
Q
Metabolism
A
Set of life-sustaining chemical reactions in organisms
2
Q
Main purposes of metabolism
A
The conversion of the energy in food to energy availed to run cellular processes
The conversion of food to building blocks of protein, lipids, nucleic acids, and some carbohydrates
The elimination of metabolic wastes
3
Q
What determines whether metabolic reactions occur or not?
A
Energectics or energy considerations
Subject of biological thermodynamics
4
Q
1st law of thermodynamics
A
Energy of a system may change forms, but it is neither created nor destroyed
5
Q
Forms of energy
A
Chemical
Radiation (heat, light)
Mechanical
Electrical
6
Q
Energetically favourable
A
When energy considerations allow some reactions to occur while others not allowed
