1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
frozen [14]
3 years ago
15

A defective Na+/K+ ATPase pump is isolated from a plasma membrane and studied. Careful measurements in the laboratory determine

that the pump is able to hydrolyze ATP and transports 3 Na+ ions across the plasma membrane. The pump is also able to bind 2 K+ ions with high affinity. However, the pump is unable to shuttle K+ ions across the plasma membrane. Based on these observations, what is the most likely cause of the defect in this pump?
Biology
1 answer:
Paul [167]3 years ago
8 0

Answer:

The defective Na+/K+ ATPase is not able to dephosphorylate itself.

Explanation:

Na+/K+ ATPase pump cycles between two different forms: the phosphorylated form of the Na+/K+ ATPase has a high affinity for K+ ions and low affinity for Na+ ions. The release of phosphate from ATP and phosphorylation of Na+/K+ ATPase makes the pump to release the bound 3 Na+ ions outside the cell and to bind to the 2 K+ ions from the surroundings. As the Na+/K+ ATPase is dephosphorylated, its affinity for K+ ions is reduced leading to the release of K+ inside the cell.  

A defective Na+/K+ ATPase that is able to pick and bind the K+ ions but is not able to shuttle them across the membrane should be defective to achieve its dephosphorylated form. Without releasing phosphate, the affinity of the pump for K+ ions is not reduced and the pump would not be able to release them to the opposite side of the membrane.  

You might be interested in
The process of cell division in Eukaryotes is called
Dennis_Churaev [7]

its answer is A.

please let me know how helpful it is

8 0
2 years ago
Read 2 more answers
When we turn on a light switch or use the microwave, we use electricity. What
lora16 [44]

Answer:

I'm going to say nuclear power plants.

Explanation:

I heard that this generates electricity. I hope this helps! Keep learning! :)

7 0
3 years ago
What is photosynthesis
almond37 [142]

Answer:

Photosynthesis is the process, in which the chloroplast in plant cells convert sunlight to energy for the plant

3 0
3 years ago
Read 2 more answers
Brown coat color in rabbits is dominant and white is recessive. Th allele for short fur is dominant, the allele for long fur is
Zarrin [17]

Yes because the dominant genes would cover up the recessive ones

4 0
3 years ago
Question 11 of 20 What fact do scientists believe provides evidence for the Big Bang Theory? A. All stars feature nuclear fusion
natka813 [3]
The smart answer is A because it makes more sense
5 0
3 years ago
Other questions:
  • ANSWER QUICKLY. THIS QUESTION COST A LOT OF POINTS! *where do crevasses form?* a. in the zone of fracture b.below the zone of fr
    15·1 answer
  • What is the last stage of protein synthesis, in which amino acids are assembled by tRNA?
    8·1 answer
  • The controlled process by which hydrocarbons are broken down or rearranged into smaller, more useful molecules is called ____.
    5·1 answer
  • What is the first step in developing a personal fitness plan?
    6·2 answers
  • Neurons are part of a(n) _________ system. A sturdy B social C independent D complex
    10·1 answer
  • BRAINLIEST 20 POINTS ANSWER THESE QUESTIONS
    8·1 answer
  • The blood type trait is controlled by more than two alleles for a given gene and therefore is called multiple alleles.
    5·2 answers
  • Which of the following cycles does not involve living organisms?
    9·2 answers
  • Scientists continually work to better understand human diseases. Knowledge of the human genome enables them to better understand
    14·1 answer
  • Which of the following animals are examples of vertebrates? 
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!