- Joined
- Dec 13, 2005
- Messages
- 684
- Reaction score
- 2
I had a question about this two questions fron DAT achiever.
The first one, the right answer is C but i always thought that endergonic rxn are coupled so the reaction would proceed, which would make D the correct answer. If anyone could explain, I would appreciate it.
The second one, The answer is A, but i thought CL would be more stable at secondary position instead of primary making C the correct answer.
1) Adenosine triphosphate (ATP)
A. can never be regenerated after its hydrolysis to ADP and Pi.
B. is thermodynamically more stable than its products of hyrolysis.
C. powers cellular work by coupling exergonic reaction to endergonic reaction.
D. powers cellular work by coupling endergonic reaction to exergonic reaction.
E. contributes little to the driving of cellular work.
2) Which product will be formed in majority through the following addition reaction?
CH2=CHCH=CH2 + HCL@ 25 degreeC ----->
A. CH3CH=CHCH2Cl
B. CH3CH=CClCH3
C. CH3CHClCH=CH2
D. CH2ClCH2CH=CH2
E. CH3CH2CH=CHCl
The first one, the right answer is C but i always thought that endergonic rxn are coupled so the reaction would proceed, which would make D the correct answer. If anyone could explain, I would appreciate it.
The second one, The answer is A, but i thought CL would be more stable at secondary position instead of primary making C the correct answer.
1) Adenosine triphosphate (ATP)
A. can never be regenerated after its hydrolysis to ADP and Pi.
B. is thermodynamically more stable than its products of hyrolysis.
C. powers cellular work by coupling exergonic reaction to endergonic reaction.
D. powers cellular work by coupling endergonic reaction to exergonic reaction.
E. contributes little to the driving of cellular work.
2) Which product will be formed in majority through the following addition reaction?
CH2=CHCH=CH2 + HCL@ 25 degreeC ----->
A. CH3CH=CHCH2Cl
B. CH3CH=CClCH3
C. CH3CHClCH=CH2
D. CH2ClCH2CH=CH2
E. CH3CH2CH=CHCl