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bundle for MCAT Chemistry Practice Tests 2022 (59 Questions Answers)| top rated A |
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[Show more]Most cytochrome P450 enzymes alter the activity of drugs by: 
A. 
phosphorylating them. 
B. 
dephosphorylating them. 
C. 
oxidizing them. 
D. 
reducing them. - ANSWER C. 
oxidizing them. 
 
cytochrome p450 acts as monooxygenase, where an oxygen atom is inseted into substrate, thereby resulting in ox...
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Add to cartMost cytochrome P450 enzymes alter the activity of drugs by: 
A. 
phosphorylating them. 
B. 
dephosphorylating them. 
C. 
oxidizing them. 
D. 
reducing them. - ANSWER C. 
oxidizing them. 
 
cytochrome p450 acts as monooxygenase, where an oxygen atom is inseted into substrate, thereby resulting in ox...
1) Which graph best describes the relative performance of Ps and controls on the type of lexical decision task described in the passage? - ANSWER Did not understand that y axis; quick reaction times means less msec 
 
4) The numbers presented to the participants in the avoidance study function as: 
...
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Add to cart1) Which graph best describes the relative performance of Ps and controls on the type of lexical decision task described in the passage? - ANSWER Did not understand that y axis; quick reaction times means less msec 
 
4) The numbers presented to the participants in the avoidance study function as: 
...
Limestone does NOT decompose when heated to 900 K because, at 900 K, ΔH is: 
A. 
positive and less than TΔS. 
B. 
positive and greater than TΔS. 
C. 
negative and less than TΔS. 
D. 
negative and greater than TΔS. - ANSWER B. 
positive and greater than TΔS.
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Add to cartLimestone does NOT decompose when heated to 900 K because, at 900 K, ΔH is: 
A. 
positive and less than TΔS. 
B. 
positive and greater than TΔS. 
C. 
negative and less than TΔS. 
D. 
negative and greater than TΔS. - ANSWER B. 
positive and greater than TΔS.
In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? 
 
A) Hydrogen bonding 
B) Solute concentration 
C) Stationary phase concentration 
D) Thickn...
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Add to cartIn the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? 
 
A) Hydrogen bonding 
B) Solute concentration 
C) Stationary phase concentration 
D) Thickn...
Q3. The structure giving six unique 13C-NMR signals is most consistent with: 
 A. Product A 
 B. Product B 
 C. Product C 
 D. Product D 
Correct Answer Key: B
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Add to cartQ3. The structure giving six unique 13C-NMR signals is most consistent with: 
 A. Product A 
 B. Product B 
 C. Product C 
 D. Product D 
Correct Answer Key: B
C/P: What expression gives the amount of light energy (in J per photon) that is 
converted to other forms between the fluorescence excitation and emission events? 
"intensity of fluorescence emission at 440 nm excitation at 360 nm) was monitored for 
20 minutes" 
A) (6.62 × 10-34) × (3.0 × 108)...
Preview 4 out of 82 pages
Add to cartC/P: What expression gives the amount of light energy (in J per photon) that is 
converted to other forms between the fluorescence excitation and emission events? 
"intensity of fluorescence emission at 440 nm excitation at 360 nm) was monitored for 
20 minutes" 
A) (6.62 × 10-34) × (3.0 × 108)...
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