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Metabolism has two parts: Catabolism breaks down complex molecules into smaller building block molecules - think proteins -> amino acids. Then anabolism uses th
by geomark 6y ago
Metabolism has two parts: Catabolism breaks down complex molecules into smaller building block molecules - think proteins -> amino acids. Then anabolism uses those building blocks to build up larger molecules for growth and maintenance. Crystals don't do the catabolism part.
- kubanczyk 6y agoNah, this seems more like an implementation detail than an actual core of life's "functionality".
- BlueTemplar 6y agoLooks like cell's phospholipid bilayer is anabolized just like an "endothermic" crystal : no need to cross a potential barrier (and releases energy instead of consuming it)? On the other hand, other forms of anabolism require crossing an energy barrier (and consumes energy) ? While catabolysm is the inverse operation : crosses a barrier, but releases energy? The formation/destruction of "exothermic" crystals like dissolution of Sodium Hydroxide if put in contact with water is I guess similar to above two reactions ? (Or better example: explosives)
- Ericson2314 6y agoWhile I don't think it's a good definition for life, I do think it's a good definition for metabolism. That simply means "metabolism" isn't the concept to generalize further, and I'm OK with that.