Aamc Fl 5 Exam With Correct Answers

Which classification of amino acids applies to the Trp residues after photochemical modification by CCl3CO2H? A. Acidic B. Basic C. Hydrophobic D. Polar neutral {Ans: - realized that a COOH group was added - I was trying to think too broadly rather than following AAMC logic about what that specific addition did to the molecule}Approximately how many moles of Kr+ are contained in the laser tube at 0°C and 1 atm? A. 3 x 10-7 B. 2 x 10-6 C. 4 x 10-5 D. 5 x 10-4 {Ans: Define STP Conditions: 1 atm, 0C - If constants aren't given you don't need to solve problem, but can help to know - I missed this problem because I didn't read the passage close enough at first, which gave me the volume I needed to solve the problem}Samples from various time points of the proteolysis of TPMTwt were subjected to SDS-PAGE under reducing conditions. Which figure best depicts the expected appearance of the gel? {Ans: Didn't pay attention to question hard enough - really need to focus on what the question is asking}If all else is held constant, which of the following changes would NOT double the volume of