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Explain how phosphate limiting conditions for photosynthesis can cause an increase in the
production of endogenous oxygen radicals.
Under phosphate limiting conditions what will be the activation state (i.e. factors that make the enzyme active during the day) of RubisCO considering feedbacks from the light reactions of photosynthesis?
What effect would a drug that either dramatically reduced or enhanced the fidelity of a viral RNA polymerase have on the survival and fitness of a virus in a population? Explain Why? Are there currently examples of such drugs? How do they work?
The antibiotic Gramicidin A can transport Na+ ions into a certain cell at the rate of 5.0 x 10^7 Na+ ions channel^-1 s^-1. Calculate the time in seconds to transport enough Na+ ions to increase its concentration.
In plant communities today, leaf morphology is correlated with mean annual temperature, so paleobotanists use fossil leaf morphology to estimate the mean annual temperature of paleoclimates.
Do you think that a prenatal test is worthwhile if it detects a genotype, but cannot predict the phenotype? Discuss the risk/benefit issues of this situation.
Analyze the contributions of select scientists from the Greek and Roman period. Explain the Arab influence on the development of anatomy and physiology.
Which characteristic of cell membranes might explain why fat-soluble substances such as chloroform and ether rapidly affect cells.
Inorganic fertilizers contribute to water pollution and your town is encouraging its citizens to switch from inorganic fertilizers to organic fertilizers, like seaweed powder, so as to minimize pollution.
What is the most important error in the design of Photosynthesis experiment? How would you modify the experiment to improve the design and correct this error?
Assume you have been breeding roaches in your dorm and are trying to increase the speed in your roach population. You examine speed by timing.
Two aqueous solutions are separated by a semi-permeable membrane that was not permeable to salt, but was to water. Side A had a 20 percent salt solution Side B had 50 percent salt solution,
Osmotic balance is critical for fishes to maintain, particularly those that move between waters with differing concentration gradients of solutes, particularly salts.
Draw a diagram that represents the molecular structure of a phospholipid. Be sure to show any part of the molecule that might be charged. Describe 2 ways in which the molecular structures of phospholipids and triglycerides are similar, and two ways ..
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