Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question: A diffusion cell is constructed that consists of a thin membrane (thickness 200 micro meters and area 1 cm^2) separating two solutions of identical volume (V= 10 cm^3). The donor solution contains a drug molecule of interest. The drug has a partition coefficient of 15 in the membrane. State all your assumptions and boundary conditions in the calculation.1) If the donor solution concentration remains unchanged at 10 mg/ml. The receptor solution is maintained at a much lower concentration. The amount of drug that passes through the membrane is 6.5 mg/hr. Calculate the drug diffusion coefficient and permeability in the membrane.(2) If the initial drug concentrations are 10 mg/ml in the donor solution and 0 mg/ml in the receptor solution. The change in the drug concentration in the receptor solution is measured as a function of time, as shown in the table below. Also shown is the drug concentration change when the membrane is treated with a thin layer of coating. Determine the permeability of the membrane with and without coating to the drug.Time (min) Without coating (mg/ml) With coating (mg/ml)0 0 060 0.45 0.1300 1.35 0.5900 2.5 1.3
When chromatin from any eukaryote is digested with micrococcal nuclease and fractionated using electrophoresis, DNA fragments of approximately two hundred base pairs in length are observed.
Suppose you add five micrograms of purified acid phosphatase to the pur acid phosphatase reaction - compute the amount of acid phosphatase in 400 microliters of wheat germ extract
The results of these experiments point to that plants can be genetically transformed for resistance to virus disease development. What is an expected outcome of a cross between a homozygous recessive woman and a man with hypophosphatemia.
Your friend is trying to generate an in vitro system for studying the formation of COPII vesicles. He finds that to get well-organized vesicle budding from artificial membranes, he needs to add the coat proteins, the Sar1 GTP-binding protein.
Assume you are studying metabolic pathways and discover that 2-pathways intersect so that enzyme basinase participates in both of the intersecting pathways.
The DNA sequence of a codon in a gene was changed from AAT to AAC. This type of mutation is known a(n) as.
Assume you recently found a new variety of sweet pea plants in the area surrounding Chernobyl that cannot be crossed with the sweet pea plants used in Mendel's experiments.
Glucose is frequently administered intravenonusly to patients as a food source. A new resident at the hospital suggests administering glucose-6-phosphate instead. Glucose-6-phosphate requires ATP and you consider the possibility that administering..
Determine what morohological and aanatomican characteristics can you use to distinguish roots from stems from leaves? discots from monocots?
Using these data, estimate the density (number/hectare) of each size class plus the overall density. [Note: 1 hectare = 10,000 m 2 .]
Obese adipose tissue is characterized by infiltration of macrophages. We and others recently showed that a specific subset of macrophages is hired to obese adipose and muscle tissue.
What component of root-tip cells is stained by Safranin in the permanent mount of a longitudinal section of a corn root tip? What component of root-tip cells does Fast Green stain? What could different stains such as these indicate with respect to ce..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd