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Sale Price $21.85.
Original Price $25.70 Comp. value
per shirt
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Are You A Catalyst Or Not? (Enzyme-Substrate) T-Shirt
Qty:
Style
Basic T-Shirt
-$1.50
+$10.70
Color & Print Process
White
Classic Printing: No Underbase
Vivid Printing: White Underbase
About T-Shirts
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About This Design
Are You A Catalyst Or Not? (Enzyme-Substrate) T-Shirt
No need to be a chemist or biochemist to enjoy any of these wry science humor gifts featuring the induced-fit hypothesis of enzyme action. Featuring enzyme-substrate complex (enzyme-products complex) and the tongue-in-cheek life query that all must answer: "Are You A Catalyst Or Not?" Memorable scientific gag gifts for all who wonder about activation energy!
Customer Reviews
4.7 out of 5 stars rating31.9K Total Reviews
31,926 Reviews
Reviews for similar products
5 out of 5 stars rating
By Jerry S.July 5, 2025 • Verified Purchase
Basic T-Shirt, White, Adult L
Have had Zazzle complete a number of T-shirt projects in the past. This one had several design elements. It was well done. I will work with Zazzle again.
2 out of 5 stars rating
By Mas B.August 8, 2025 • Verified Purchase
Basic T-Shirt, White, Adult S
The T shirt seems to be made from decent material but appears to be an irregular t-shirt sewn and stitched. .
5 out of 5 stars rating
By Lori H.May 21, 2024 • Verified Purchase
Basic T-Shirt, White, Adult L
I ordered about 20 shirts for a reunion. They arrived today on time but one the package was damaged. The shirts look great but the packaging was busted open and had been taped up. The shirts that were in the torn side were really dirty and I’m not sure it will wash out as it looks like greasy dirt. The printing looked great.
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Other Info
Product ID: 235821845988929322
Created on: 9/12/2010, 4:09 PM
Rating: G
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