Why is the gradient alone not enough to get the ions

Assignment Help Biology
Reference no: EM13115666

Movement of chloride ions across the cell membrane from the the outside of nerve cells to the inside has a delta-G of about 1.1 kcal/mol even in the presence of a gradient. Why is the gradient alone not enough to get the ions into the cell? (Think about how delta-G is calculated for movement into a cell.)

a) must also take into consideration other ion concentrations
b) must also take into consideration the membrane potential
c) must also take into consideration the temperature
d) must also take into consideration cotransport

Reference no: EM13115666

Questions Cloud

Which protein results in faster fluorescence recovery time : You carry out an experiment using the FRAP technique to determine the relative speed of diffusion of two proteins, A and B. Protein A has a molecular weight of 175,000 daltons and B a molecular weight of 35,000 daltons. Which protein results in th..
Calculate the molar mass of the compound : A solution is prepared by adding 5.00 grams of an unkown compound to 217 g of cyclohexane (C6H12). This solution freezes at 4.5 degree C.
Describe the objective function and constraint equations : Describe the objective function and constraint equations. What is a maximum-profit daily production plan at the new factory?
Explain how much waork has been done against gravity : Explain how much waork has been done against gravity when the crate is raised a vertical distance of 2.19 m? The coefficient of friction is 0.316.
Why is the gradient alone not enough to get the ions : Movement of chloride ions across the cell membrane from the the outside of nerve cells to the inside has a delta-G of about 1.1 kcal/mol even in the presence of a gradient. Why is the gradient alone not enough to get the ions into the cell? (Think..
Pemdas order of operations in mathematics : Discuss the PEMDAS order of operations in mathematics. What is PEMDAS and why is important to follow it to the letter when conducting mathematical operations?
Explain how much acceleration will the other three produce : If a four-engine jet accelerates down the runway at 2 m/s2 and one of the jet engines fails, explain how much acceleration will the other three produce?
Define probability distribution : What's a probability distribution? What's it used for and why do we care? Does a probability distribution guarantee a particular value will occur under a set of circumstances?
What is the delta-g for this process : Transport of chloride ions are studied in nerve cells. The chloride concentration inside the cells is 50 mM and these cells are placed in a solution containing 100 mM chloride. The membrane potential for these cells at 25oC is -60 mV. What is the ..

Reviews

Write a Review

 

Biology Questions & Answers

  How many more years will it take for the population to grow

The intrinsic rate of increase (r) for northern elephant seals about 0.15 (per annum). We will assume that population regulation is linearly density dependent.

  Finding the most likely gene order

Suppose that you perform fruit fly crosses with different pairs of 3-X-linked traits specified by genes x, y, and z. You observe the following frequencies of recombinant

  Determine the osmotic pressure of a solution

Two aqueous urea solutions have osmotic pressures of 2.4 atm and 4.6 atm, respectively, at a certain temperature.

  Find probability that tony is heterozygous for the cf gene

Tony who is not diseased has a sister with cystic fibrousis(CF). neither of his parents have (CF).tony is expecting a child with Tina.Tina's family history is unknown.what is the probability that tony is heterozygous for the CF gene? Explain your ..

  What improper method led to this infection

What is the most possible explanation. Cultures from dialysate concentrate and the internal areas of the dialysis machines were negative; iodophor from a small in- use plastic container yielded a pure culture of P. aeruginosa. What improper method le..

  Interpret the p-value

Perform a chi-square test of independence for linkage between genes A and B. What is ?2, the degrees of freedom, and the p-value?

  Speacies of gram positive bacterium

Suppose that the you are given two cultures, one of a speacies of gram-positive bacterium and one of a species of Mycobacterium.

  Nonradioactive phosphorous for many generations

Phosphorous is needed to synthesize the deoxyribonucleoside thriphosphates used in DNA replication. A geneticist grows some  E. coli  in a medium containing nonradioactive phosphorous for many generations.

  Explain what dna-bar coding is

Explain what DNA-bar coding is and how it is used to study the epidemiology of viral diseases caused by insect vector-virus complexes; what can be learned using this approach?

  Explain afterpains

Explain afterpains and why do these occur more commonly in mulips than in primips? Why do breastfeeding moms have more after pains? What you tell a mom to expect in terms of how long she will have to have afterpains?

  Determine which animal have highest oxygen consumption

A beetle (0.06g), a gorilla (200kg), a gecko (5g) and a hedgehog (5g) are all kept individually in 5x5m rooms that are maintained at a constant temperature of 25 C.

  Somatic cells of chimpanzees have 48 chromosomes

Describe what you observed in your cheek smear wet mount, direct stained slide, and indirectly stained slide. What were similarities and differences. Describe what you observed in your yeast wet mount, direct stained slide, and indirectly stained sli..

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