Which of the following interactions can contribute to the intrinsic binding energy during enzymatic catalysis? Choose all that apply.

a. hydrogen bonding
b. permanent covalent bonding
c. electrostatic interactions
d. van der Waals interactions
e. nucleophilic attack by serine

Explanation:

Hydrogen bonding, Electrostatic interactions , & Van der waals interactions all contribute to the intrinsic binding energy during enzymatic catalysis.

Van der Waal interactions which is one of the strongest interactions after Hydrogen bond usually takes place occur between giant biological molecules like the, starch, glycerol propane 1,2,3 -triol . It usually lead to the attractive and repulsive characteristics of the electrons in the atoms of the giant molecules.

Hydogen bond one of the strongest bond in molecules, it is also known as dipole -dipole interactions. it is usually formed between highly electronegative elements.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.