The conversion of glucose to glucose 6-phosphate is an endergonic reaction (eq1 below). the second equation below is an exergonic reaction that can occur in all cells. considering this information, how can the reaction in equation 3 proceed? eq1: glucose + pi --> glucose 6-phosphate eq2: atp + h2o --> adp + pi eq3: glucose + atp --> glucose 6-phosphate + adp select one: a. the energy released from equation 1 is more than the energy consumed in equation 2 making the overall reaction δg positive and the reaction spontaneous. b. the energy released from equation 1 is more than the energy consumed in equation 2 making the overall reaction δg negative and the reaction spontaneous. c. the energy released from equation 2 is more than the energy consumed in equation 1 making the overall reaction δg positive and the reaction spontaneous. d. the energy released from equation 2 is more than the energy consumed in equation 1 making the overall reaction δg negative and the reaction spontaneous. e. the energy required to make eq3 spontaneous is provided by the enzyme catalyzing the reaction

Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely.analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.