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Question: Assume you have reconstituted into the same membrane vesicles purified bacteriorhodopsin, which is a light drive H+ pump from a photosynthetic bacterium, and purified ATP synthase from ox heart mitochondria. Suppose that all molecules of bacteriorhodopsin and ATP synthase are oriented as shown in the figure below, so that protons are pumped into the vesicle and ATP synthesis occurs on the outer surface.
A. If you add ADP and phosphate to the external medium and shine light into the suspension of vesicles, would you expect ATP to be synthesized? Why?
B. If you prepared the vesicles without being careful to remove all the detergent, which makes the bilayer leaky to protons, would you expect ATP to be synthesized? Why?
Distinguish between pathological and trauma. Explain the main pathways by which energy from the sun or from specific chemical reactions enters organisms and passes from organism to organism or back into the environment.
The top of mountain is at an elevation of 45° from one bank of a river and at an elevation of 60° from the other bank. If river has a width of 1 km, what is the height [in km] of the mountain.
A corn plant is homozygous for a mutant allele that results in no pigment in the seed. The mutant is caused through Ds insertion that often exits late in the seed development,
How do these duplications arise and what do they propose in terms of mechanisms of transposition. Could you help to understand FEV1/FVC and how the expected percentage of this figure relates to respiratory problems.
A nearsighted woman (Nn) with hazel eyes (Hh) marries the man with normal vision and hazel eyes (Hh). Their three children all have blue eyes and normal vision. What is the possibility that their next child will have blue eyes and be nearsight.
Discuss how does the altered primary structure of hemoglobin from sickle cell patients affect its tertiary structure?
A true breeding tall pea plant with axially positioned purple flowers was crossed to a true breeding dwarf pea plant with terminally positioned white flowers.
Assume you have a pure breeding mutant donkey that has very large teeth and very large ears. Both phenotypes are completely recessive to the normal phenotype.
What is the dissimilarity between exergonic and endergonic reactions? Give an instance of each. What is the significance of each type of reaction.
Determine where the chain would be more likely to show beta bends or reverse turns.explain where one would fin cross-linked disulfide bonds.
If a population of algae-eaters experiences predation pressure from pike-cichlids which is the least likely to be observed in the algae-eater population over the course of many generations.
how to keeping the shape of the cell. But I have found that there is a primary and secondary cell wall - each has their own function - so I am somewhat confused and looking for guidance.
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