★ Must-know
📌 Catabolic pathways release energy by breaking complex molecules into simpler compounds, whereas anabolic pathways consume energy to build complex molecules from simpler ones.
Further detail
1. What does metabolism encompass in a living organism?
2. A molecule is transformed through several defined steps, with a specific enzyme catalyzing each step; what is this sequence called?
3. A cell uses energy to assemble a complex molecule from simpler compounds, while another process breaks complex molecules into simpler ones and releases energy; how are these pathways classified?
What is metabolism?
The totality of an organism’s chemical reactions.
What gives rise to metabolism as an emergent property of life?
Orderly molecular interactions.
What defines a metabolic pathway?
A series of defined steps that alters a specific molecule to produce a product.
What catalyzes each step in a metabolic pathway?
A specific enzyme.
What do catabolic pathways do to complex molecules?
They break them into simpler compounds and release energy.
What is energy?
The ability to do work.
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