#Question id: 455
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following is correct for a step in a reaction pathway to serve as a control point
A) irreversible B) endergonic C) far from equilibrium
#Question id: 456
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following function is done by compartmentation of enzymes?
A) helps loss by diffusion.
B) keeps separate pools of metabolites in cells.
C) can help control metabolic pathways.
#Question id: 457
#Unit 1. Molecules and their Interaction Relevant to Biology
Which are membrane associated pathways?
A) electron transport chain in eukaryotes
B) citric acid cycle in bacteria
C) photosynthesis
D) glycolysis
#Question id: 458
#Unit 1. Molecules and their Interaction Relevant to Biology
Ten people are sitting in a row. Their objective is to whisper a secret from one person to the next all the way down the row. The first person whispers the secret to the second person who passes the secret to the third person and so on. After whispering to the third person, the second person in the row notices the ninth person has fallen asleep in their chair, so she gets up, goes down the row and shakes person nine awake. This example is similar to ________.
#Question id: 459
#Unit 1. Molecules and their Interaction Relevant to Biology
Calculate △G°ʹ for the reaction shown if the mass action ratio, Q, is 5.3 × 102 M-1 and △G is 46 kJ/mol at a temperature of 298 K. (R = 8.315 J/K-mol)
ADP + Pi ⇌ ATP
#Question id: 460
#Unit 1. Molecules and their Interaction Relevant to Biology
The hydrolysis of ATP to ADP has a △G°ʹ of -30 kJ/mol. If in an E. coli cell the concentrations of ATP, ADP and inorganic phosphate are 7.90 mM, 1.04 mM and 7.9 mM, respectively, which statement is true about the hydrolysis of ATP in the cell? (Assume a temperature of 298 K. R = 8.315 J/K-mol)