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A plasma membrane with surface area of 5000 µm2; there are 106 phospholipid molecules per µm2 in each leaflet of the membrane; there are 3000 molecules of flippase enzyme associated with the plasma membrane; each flippase enzyme molecule can catalyze 100 flips per second (we'll ignore enzyme specificity for the moment).
What is the maximum rate of inappropriate spontaneous phospholipid flips, in flips/sec for the whole plasma membrane, that can be reversed by the action of the flippases?
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.
Discuss how insertion, deletion, and base substitution of nucleotides can have a significant impact on genes. Find three specific examples of ways in which a very small change in DNA
The ph of mitochondria matrix is 8.2 while the ph of intermembrane is 7.2. Determine the voltage potential across the mitochondrial membrane which would prevent hydrogen ions from flowing into matrix?
Provide an instance where this definition does not apply and in brief explain why this example does not apply to the species concept.
Describe what are the three different microbial groups in anaerobic digester, and how they work together to convert complex polymers to methane gas.
If a person has a stomach ulcer that is aggravated by excessive hydrochloric acid {HCl} secretion, why on earth would he or she be drinking milk to feel better,
What does this tell you about the physiological importance of hemoglobin's sigmoidal oxygenbinding curve. Which line represents the bag with the maximum initial concentration of sucrose.
Explain why people addicted to methamphetamines often sleep very little, suffer extreme mood swings, and become very thin.
Give examples of potential environmental impact. Give at least two references in addition to your text in support of your position. Be sure to cite your sources including your text using APA style and respond to at least two of your classmates' posti..
Which of the following statements is true? The first cervical vertebra is called the axis.The spinal cord protects the vertebral column.
On the morning of the 27th December 1996, Patsy Ramsey called the police to report her 5-year-old daughter, Jon Benet Ramsey, missing. The little girl had disappeared from her bedroom and a ransom note demanding one hundred and $8000.
A profressor in a second-term calculus course wants to determine whether the year in college has any effect on the performance of his students on their final exam.
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