enzymes

Proteins are a major component of the Biology section on the DAT. In this lesson, Dr. Jim Romano reviews high-yield protein concepts including structure, function, enzymes, and amino acid properties that students are expected to understand for the exam. This material reflects over 35 years of...

Dr. Jim Romano explains enzymes and inhibitors — a high-yield DAT Biology topic that students frequently miss. Watch here: DAT Destroyer Resources: 2026 DAT Destroyer – High-Yield DAT Science Study Guide For free daily help, join the DAT Destroyer Facebook Study Group (Official DAT...

I had a practice question that read: "High levels of NADH will inhibit which of the following enzymes?" The answer choices Fructose 1-6-bisphosphatase and Glucose-6-phosphatase were both explained to be incorrect because: "This enzyme is required for gluconeogenesis. High levels of NADH would...

Can someone please explain how to find this answer to me? Researchers collected the following data for an enzyme-catalyzed reaction. [Substrate] (muM) 3 6 10 20 50 100 1000 10,000 Vo (muM/min) 22 53 100 129 162 180 199 200 What is the approximate numerical value of the slope of the...

I'm a little confused on binding sites in general, since we never went into that much detail in elementary biochem. I have watched all the KA videos and done the EK review but am still a bit hazy. Do hydrophobic binding sites on enzymes mean that they will interact preferably with hydrophobic...

Competitive inhibitors don't change Vmax, while uncompetitive/noncompetitive inhibitors do. Why? They all do the same basic thing - prevent substrate from being processed by the enzyme. But the way they do it is different. However, for the purposes of my question, please address the following...