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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.
Which of the following is not a function of membrane proteins?
Describe why an anaerobic indicator strip in an anaerobic environment will revert to blue if it gets wet.
What is the function of science and technology in society. If you are in an airplane encountering turbulence and you start feeling sick to your stomach, would closing your eyes help and why.
How many genes are involved in the growth behavior phenotype, and what must the genotypes in the cross be? Assume recessive loss-of function mutations are involved.
A scientist has studied the community of insects on these islands and determined that the z-slope for them is 0.26. If island A is 420 ha and has 1450 species of insects, how many species of insects would be expected on island D which is 24ha?
Deinococcus radiodurans is a bacterium that was isolated from cooling ponds in and around nuclear power plants. It is highly resistant to ionizing radiation. Propose an hypothesis to explain the high level of radiation resistance and an experiment..
An operon with one regulatory region and three protein?coding genes will have how many promoters? Related: Explain how bacteria can make one mRNA molecule that contains the code for several proteins.
What environmental conditions would favor plant species with a strategy of producing many small seeds rather than a few large ones? What classification would we give to species utilizing one of these two strategies? Name and describe each.
These items are to be examined under a microscope. Sketch the following given specimen: gametophyte/ sporphyte, Closeup of sporangia.
How do changes in endothelial and immune cell function contribute to cancer and name two carcinogens and how each contributes to a specific type of cancer.
Your brother has just bought a new plastic model airplane. He places all the parts on the table in about the positions in which they will be located when the model is complete. His actions are analogous to which procedure in development.
Those that live in tropical climates like the savannas of Africa are usually much smaller than the ones that live in arctic regions like Lapland.
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