Practice Questions

TLS Online TPP Program

#Question id: 67

When a region of DNA must be repaired by removing and replacing some of the nucleotides, what ensures that the new nucleotides are in the correct sequence?

#Introduction to Biochemistry

DNA cannot be repaired and this explains why mutations occur.
The new nucleotides base pair accurately with those on the complementary strand.
The repair enzyme recognizes the removed nucleotide and brings in an identical one to replace it.
The three-dimensional structure determines the order of nucleotides.

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TLS Online TPP Program

#Question id: 40

#Introduction to Biochemistry

Given that the standard free-energy change for the reaction glucose + Pi → glucose 6-phosphate is 13.8 kJ/mol, and the standard free-energy change for the reaction ATP → ADP + Pi is −30.5 kJ/mol, what is the free-energy change for the reaction glucose + ATP → glucose 6-phosphate + ADP?

TLS Online TPP Program

#Question id: 27060

#Introduction to Biochemistry

Choose the incorrect statement out of the followings

TLS Online TPP Program

#Question id: 61

#Introduction to Biochemistry

Which of the following correctly describes chemical equilibrium?

TLS Online TPP Program

#Question id: 33

#Bioorganic Chemistry and Metabolites

Use the following figure to answer the question. The figure shows the structures of glucose and fructose. These two molecules differ in the