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Recent experiments in a lab have focused on trying to understand cellular mechanisms that underlie epilepsy. Many of the studies involve recording electrical activity in neurons from brains of adult fruit flies (Drosophila). Brains in all animals are made up of a collection of highly specialized cells surrounded by fluid. In humans and other mammals the fluid surrounding the brain is called cerebrospinal fluid (CSF). This contains lots of molecules including sodium, K+, glucose and proteins with a total solute concentration of ~300 milliosmols (mOsm). In fruit flies the brains are surrounded by fluid called hemolymph with a total solute concentration of ~250 mOsm.To record from neurons we dissect the brain out of the fruit fly head. The brain tissue is placed immediately into a solution. When we make this solution what should the total solute concentration be and why?
Discuss how much energy do methanogenic bacteria get from using glucose and hydrogen to form methane and water as the products?
Explain a single procedure that could be used to isolate the Con A Receptor from this preparation. Propose two ways the photosynthesis process could be improved to fix more CO2 than normal and the plant productivity can be increased. Be specific abou..
Suppose if you can purchase corn grain or sorghum for $320 per ton as fed for energy, which is the better buy and why? The lab results indicate that the corn is 87 percent DM and has 3.16 Mcal.
Suppose the diameter of the field of vision in your microscope is 2mm under low power. If one Bacillus cell is 2 micrometers how many Bacillus cells could fit end to end across the microscope? How various 10 micrometers yeast cells could fit across t..
A positive intreger is scalled a perfect number if it is equal to sum of all of it is positive divisons, excluding itself. For example, six is 1st perfect number, because 6=3+2+1.
Explain how Mendel's scientific approach enabled his genetic experiments to be successful and describe Mendel's law of segregation and explain its' mechanism based on molecular biology.
A massive event occurs and the mountain range separating the 2-populations collapses. These two populations are now capable to migrate such that the two populations which were of equal size.
Why benefits are strategically significant to employers and what is some main strategic consideration. What parts of the cell did molecules in this tube probably come from? Describe briefly.
When Purified Protein Derivative (PPD) isolated from Mycobacterium tuberculosis was injected into the skin of a patient, it caused an area of hardening 1 cm in diameter. How must this PPD test be interpreted? What caused the result.
A seventy-five year-old woman with congestive heart failure complains that her condition gets worse when she worries and is under a lot of stress.
Assume you were given a tube having 1 ml of frozen Staphylococcus epidermidis culture known to contain 5.3 x 103 bacteria/ml. You were told to thaw it by heating at 80°C for 20 min,
Discuss the relationship between the rate of an uncatlyzed reaction and the rate of the corresponding uncatalyzed reaction?
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