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1) What is different about what happens to excited electrons in the photopigment in the reaction center, compared with those of other photopigments in the antenna complex?
2) Where, precisely, does the oxygen released in photosynthesis come from? Some bacteria are autotrophs, but in place of water they utilize H2S. In other words, they use H2S in exactly the same way that green plants use water. Do these bacteria release molecular oxygen as a waste product? Explain why or why not.
What are the disadvantages of a flatworm's digestive system having only one opening and the complete digestive tract of nematodes and other phyla allows functional specialization. what specializations are common in the digestive tract of higher ornas..
Why are algae important in nature. Joan and Alex Smith have five daughters who are quite dissimilar in appearance and talents. Examine why this occurs based on the 2 events in meiosis that enhance genetic diversity.
Puromycin is a powerful inhibitor of protein synthesis. It is an analog of the three end of aminoacyl tRNA. When puromycin is added to a cell-free system having all the necessary machinery for protein synthesis,
suppose random and equal distribution of nucleotides.
If the seawater bathing the squid giant axon is replaced with artificial seawater in which NaCl is replaced with choline choride (which does not cross the membrane), there is no effect on membrane potential, but the axon no longer generates an act..
Hurler syndrome is an autosomal recessive disease caused by a deficiency of the enzyme alpha-L-iduronidase. Affected individuals are mentally retarded.
Two women have benign pituitary tumors. Andrea has lost weight and complains of being hot all the time; she presents as thin and nervous, with tachycardia and exophthalmos.
q1. the free energy for the oxidation of glucose to rm co2 and water is -686 kcalmol and the free energy for the
In "Chardakov method for water potential measurement" experiment, you find that 0.30 M solution has not been changed by water loss or absorption by the potato in it. Determine the osmotic potential in Mpa of this solution (0.25 M = -5.75 Bars).
Carbohydrates, proteins and nucleic acids can be thought of as polymers. What is the monomeric unit of each type? For each of these three biomolecules give an example of the monomeric component, and an example of the polymeric form.
What are some examples of systems where the Law of Conservation of Energy applies and what energy is observed?
How can the same steroid hormone simultaneously activate distinct patterns of gene expression in two different patters of gene expression in two different cell types and have no effect on a third cell type.
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