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BIEnzymes: The Superheroes of Biochemistry! โจ๐ฌ
Enzymes are tiny but mighty organic molecules that act as catalysts, speeding up chemical reactions without being used up themselves.
๐งฉ How they work:
Substrate (reactant) fits into the enzyme โ forming the enzymeโsubstrate complex.
Through the induced-fit model, the enzyme slightly changes shape to hug the substrate more closely.
End result? The substrate is converted into products, and the enzyme is free to work again! ๐
โก Helpers (Co-factors):
Sometimes enzymes need extra assistance from vitamins (like B6, B12) or minerals (Znยฒโบ, Cuยฒโบ, Mnยฒโบ) to function properly.
โ Inhibition:
Competitive: A โlook-alikeโ molecule sneaks in and competes for the active site (blocking the real substrate).
Non-competitive: A molecule binds elsewhere on the enzyme, changing its shape and shutting it down.
๐ก๏ธ Factors affecting enzyme activity:
Temperature: Enzymes work best at ~37ยฐC. Too cold = sluggish ๐ฅถ. Too hot = denatured and destroyed ๐ฅ.
pH: Each enzyme has its sweet spot! For many, itโs around pH 7. Too acidic or too alkaline โ structure falls apart.
๐ก Example: Peroxidase enzyme breaks down hydrogen peroxide (HโOโ). But if a competitive inhibitor like hydroxylamine shows up, it blocks the enzyme from working.
โก TL;DR: Enzymes = Lifeโs speed boosters. Without them, essential reactions in your body would be way too slow to keep you alive! โค๏ธ
Follow for more biochemistry explained simply! ๐งฌ
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