PLEASE HELP! Please show all work to solve so it's clear to understand. Thank you!

3. A biochemistry lab wants to develop a method to measure a biochemical transformation in a cell by energy consumption that is coupled to the system NAD+/NADH (see below). The HOMO- LUMO gaps (energy needed for the n+1* transition) for the two forms were calculated to be 3.12eV and 4.14eV. Based on their structure assign the HOMO-LUMO gaps to either form and assign their UV bands. ADP Rib ADP Rib N. Reduction Oxidation 0.2 NH2 H H NH2 NADT NADH 250 300 400 450 350 a (nm)