
Draw the structures of 11-cis-lycopene and 13-cis-lycopene, which would you expect to be more stable and why?
13. (9 pts) (a) Draw out the general cis and trans elements of the yeast Gall locus in the absence of Galactose (Gall OFF, - Galactose). (b) What is one conceptual aspect of this regulation that is distinct from how prokaryotes tend to regulate gene expression? (c) In class, we talked about the activator bypass experiments. Draw out one experiment and the conclusion from this series of experiments.
You are monitoring the decay of 13-cis-retinal to all-trans-retinal. Initially, your sample contains 100% 13-cis-retinal. After 5 minutes, you see that 55% of your sample has converted to all-trans-retinal. Assume that the all-trans-retinal cannot convert back to 13-cis-retinal. a. What is the rate constant that describes the transformation of 13-cis-retinal to all-transretinal? b. How long will it take for 95% of the sample to be converted to all-trans-retinal?
please help!
6. Draw the line (skeletal) structure corresponding to (cis)-4,4-diethyl-2-heptene.
12. Please draw out the structure for cis-1,2-dibromocyclohexane and identify the chiral centers for this compound. Is it a chiral or meso achiral compound? (4 pts) 6
Q4. Please draw structures of (a) cis- and trans- [PCI,(PPh,),), and (b) fac- and mer- [RHCl,py,] Q5. Explain why cis-Co(en),CI have optical isomers while trans-[Co(en),CI,]" does not Q6. For a high-spin d'electronic configuration for an octahedral (O) complex, (a) Draw energy level diagrams to represent. (b) Confirm that the diagram is consistent with a value of CFSE - -0.84 (c) What is the number of unpaired electrons?
Draw the reaction and reaction mechanism for the reaction of
both
cis
and
trans
stilbene with Br2
as part of your prelab procedure.
Note: I'm not sure what the
mechanisms look like so that's why I'm having trouble with the
products. Please, if you can, draw out the mechanisms for both of
these!! Thanks.
cis-stilbene trans-stilbene
Please answer all.
D. 1. Make a model of cis-1,3-dimethylcyclohexane Draw this structure in the chair form. 2. Flip to the other chair form. Draw this chair structure. 3. Is there any difference in the energies between the two conformations? Explain.
Provide the following Draw cis 2-pentene Draw trans 2-pentene Draw a structural isomer 2-pentene Draw 2 alcohols that would produce 2-pentene with dehydration (you would get a mix of cis and trans) Draw a compound with 5 carbons that is not related to 2-pentene
Draw 1-dodecanoic, 2-cis,cis-8,12-octadecenoic phosphotidic-glycerol at a pH of 7.0.