No need to be a biologist or biochemist to enjoy wry science humor with any of these gifts featuring the Krebs cycle -- also known as the citric acid cycle or tricarboxylic acid cycle (TCAC). Comes with the following funny scientific truism saying: "If It Weren't For Krebs I Wouldn't Be Functional". Showcase your biochemistry geek side with any of these gifts that will make others do a double-take about where you get your energy from!

If It Weren't For Krebs I Wouldn't Be Functional Mousepads by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Mug by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Cover For The iPad Mini by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Pin by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional T Shirts by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Mesh Hat by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Poster by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Service Trays by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Folio Planner by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional iPhone 5 Case by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Tags For Luggage by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Small Square Tile by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Party Plates by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Drink Coaster by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Wrist Watch by wordsunwords
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If It Weren't For Krebs I Wouldn't Be Functional Canvas Print by wordsunwords
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