Functional requirements of an antiporter transport protein

Assignment Help Biology
Reference no: EM13526699

1. Describe the functional requirements of an antiporter transport protein (i.e., what properties must the protein have to operate effectively?). Do antiporters represent an example of passive or active transport? Why?

2. With reference to aquaporins or the bacterial K+ channel, describe how ion channels can ensure ion specificity while maintaining relatively high flow rates?

3.K+ leak channels play an important role in re-establishing membrane potential across cell membranes. Since these channels are always open, how can the [K+] inside the cell be nearly 30X higher than the extracellular concentration at the K+ equilibrium point?

Reference no: EM13526699

Questions Cloud

What are some possible genetic explanations : The gene (cv) is recessive and is known to be 13.7 Map units from the beginning of the chromosome. The recessive gene (f) is 51.7 map units from the beginning of the chromosome.
Observed and expected double cross over frequencies : When looking at the observed and expected double cross over frequencies, what does it mean if you calculate a negative interference and what does it mean when you calculate a positive interference?
Proteins rapidly pass artificial membrane : Proteins rapidly pass artificial membrane (liposome). Amphiphatic detergent such as SDS spontaneously forms bilayer in water. Glycolipids make bilayer less permeable to small water soluble molecules. The plasma membrane is a sorting station of inwar..
Transposable elements are flanked by short direct repeats : Most transposable elements are flanked by short direct repeats. How are these direct repeats formed? Which of the following is false concerning DNA replication in bacterial cells when compared to eucaryotic cells? Which of the following is false conc..
Functional requirements of an antiporter transport protein : Describe the functional requirements of an antiporter transport protein (i.e., what properties must the protein have to operate effectively?). Do antiporters represent an example of passive or active transport? Why?
Summarize phenotypic and sex ratios : In the currant moth, the recessive pale color allele (p) is located on the Z chromosome. Diagram reciprocal crosses through the F2 gen. involving pale color and true-breeding wild-type moths. Summarize phenotypic/sex ratios.
Autosomal recessive gene transformer mutation : The autosomal recessive gene transformer (tra) mutation converts chromosomal females into sterile males. A female Drosophila that is heterozygous for the tra allele is mated with a normal male homozygous for transformer. What is the sex ratios of the..
Which statement about a diet rich in amino acids : The pH gradient established by the electron transport chain. Pyruvate is a precursor for which of these amino acids? Which statement about a diet rich in amino acids is true? Electron transfer can occure in the electron transport chain even when the..
What is the effect on their hearing : An autopsy on an alien humanoid shows that a structure analogous to the superior olivary nucleus is much closure to the cochlea than it is in humans. What is the effect on their hearing. Justify your answer

Reviews

Write a Review

Biology Questions & Answers

  Draw a chromosome map showing the relative distances

Chromosome map. Make sure your map is correct with respect relative distance. Use a key such as 1 cm = 1 map unit.

  Living organisms to control pests

Use living organisms to control pests are often used in many nations. What factors must be taken into account in using fungi to combat agricultural pests?

  Cells of tunica media of glomerular afferent arterioles

What would happen to urine output of a rabbit if cells of tunica media of all glomerular afferent arterioles were totally inactivated?

  Explain how the specific function of these cells

Between radiation, lead poisoning, and hypocalcemia.

  How would you classify the benzopyrene

Xavier smoked large amounts of marijuana, and benozopyrene in the smoke damaged the DNA in his lung cells, which could eventually become cancerous if other factors are present. How would you classify the benzopyrene?

  Which would represent the yeast cell response

During exposure to elevated glucose, a yeast cell's membrane glucose transporters will rapidly increase so the cell can import glucose. Which would represent the yeast cell response.

  Every year approximately 42000 cases of salmonellosis are

every year approximately 42000 cases of salmonellosis are recored in the united states. due to many milder cases are

  Q1 what are the elements of an epidemicclassify infection

q1. what are the elements of an epidemic?classify infection rate.in brief explain various factors affecting the

  Does selection counteract drift and gene flow

How does gene flow influencethe effects of genetic drift? Does selection counteract drift and gene flow? How do these interactions vary with populationsize? Discuss in reference to Endler's model presented in lecture.

  Would you expect cancer to arise more frequently in types

would you expect cancer to arise more often in types of cells that divide frequently such as skin cells or in types of

  What proportion of their offspring will be carriers

A carrier is represented by Tt. The disease is caused by the genotype tt while normal individuals have the genotype TT.

  Give difference between the free energy change for a reation

give difference between the free energy change for a reation and the standard free energy change (delta-G°') for the reaction.

Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd