DAT - DAT and OAT Biology Practice Question | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

Sep 20, 2026

Here’s a Biology practice question on ATP and energy for students preparing for the DAT and OAT.

Before looking at the second image, see if you can identify why energy input is required to synthesize ATP from ADP and Pi.

Then check Dr. Romano’s explanation.

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DAT Destroyer 2026 – Includes 989 Biology problems as part of the complete DAT science review.
DAT Destroyer 2026

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Dr. Romano and Nancy From New York

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Since 1999, we’ve helped over 100,000 students reach their goals with original, high-quality test prep resources. Every book, class, and guide we offer is crafted from scratch—never copied—ensuring you're getting content designed with your success in mind.

Meet Dr. Jim Romano
Dr. Romano holds advanced degrees in Organic Chemistry and Dental Surgery from the University of Miami and NYU. He studied under some of the most respected chemists in the world, including Drs. Mills, Hare, Eschegoyen, Schultz, Oratz, and Bartolotti, gaining deep expertise in chemistry, physics, and biochemistry.

Though trained as an oral surgeon, Dr. Romano found his true passion in education. For over 25 years, he has dedicated himself to mentoring future dentists and optometrists—helping thousands master the DAT and OAT and gain admission to top schools.

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DAT DAT and OAT Biology Practice Question | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

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