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
Ivanshal [37]
3 years ago
5

Consider one such cell where the magnitude of the potential difference is 40 mV, and the inner surface of the membrane is at a h

igher potential than the outer surface. A sodium ion (Na ) is initially just outside the cell membrane (initially at rest). How much work (in J) is required for a cell to absorb the ion, so that it moves from the exterior of the cell to the interior
Biology
1 answer:
GarryVolchara [31]3 years ago
5 0

Answer: W = 6.4x10⁻²¹J

Explanation: <u>Work</u> is the energy transferred to or from an object due to the application of a force along a displacement.

The ion Na is gaining energy to move from a lower potential to a higher one.

For this to happen, the work done is calculated as

W=q.\Delta V

in which

W is work in Joules (J)

q is charge in Coulomb (C)

\Delta V is potential difference in Volts (V)

The ion Na has one positive charge. In coulombs, the charge is

q = 1.6x10⁻¹⁹C

The potential difference in Volts is

\Delta V = 40x10⁻³ or 4x10⁻²V

Calculating

W=q.\Delta V

W = 1.6x10⁻¹⁹. 4x10⁻²

W = 6.4 x 10⁻²¹ J

The work done to move an ion of sodium from the exterior to the interior is 6.4 x 10⁻²¹ J.

You might be interested in
What are some nonlethal solutions to the problem of wolves attacking cattle and sheep?
irga5000 [103]

Answer:Fences, loud alarms, and keeping animals in a safe space

Explanation:

3 0
2 years ago
Read 2 more answers
phase 1 dose escalation trial of the safety and pharmacokinetics of cabozantinib concurrent with temozolomide and radiation or t
Bess [88]

For patients with newly diagnosed high-grade gliomas , Cabozantinib at a dose of 40 mg daily with RT + TMZ and post-RT TMZ was generally well tolerated.

<h3>How would you define diagnosed?</h3>

The procedure of determining a diagnosis, disease, or injury based on its indications and symptoms. To aid in the diagnosis, testing like blood tests, imaging tests, and biopsies may be done in addition to a physical examination and health history.

<h3>How do doctors make their diagnosed?</h3>

A doctor or other healthcare professional often makes a diagnosis after a physical examination and a thorough review of the patient's medical history. The next step is to prescribe tests and other diagnostic procedures to identify the underlying disease or injury that is causing the symptoms.

To know more about Diagnosed visit:

brainly.com/question/13549533

#SPJ4

5 0
1 year ago
Identify the major similarities and differences between prokaryotic and eukaryotic cells
jarptica [38.1K]
<span>Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects. Bacteria are an example of prokaryotes. Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle.</span>
6 0
3 years ago
50 POINTS PLS ANSWER!!!!
Sloan [31]

Answer: Which biotechnology could we use to help alleviate that problem and produce more honey bees? So far no one has come up with a fix. But now scientists are on the case — and some of their possible solutions sound pretty wild.

Explanation:

6 0
3 years ago
Where would you find methanogens, which can function only in the absence of oxygen
SIZIF [17.4K]
<span>several extreme environments on Earth, buried DEEP, living in hot, dry desert sand.. ETC</span>
4 0
3 years ago
Other questions:
  • _____ arise from a single fertilized egg and are thus genetically almost identical.
    12·2 answers
  • Match the time frame listed on the left with the characteristic listed on the right.
    9·2 answers
  • Describes hydrogen bonding in DNA?
    5·1 answer
  • What is the genotype ration between the cross YyRr x YyRr?
    15·1 answer
  • Account for movement in metazoan​
    12·1 answer
  • How often are you in Earth’s shadow?<br> will give brainliest, please answer soon
    10·1 answer
  • Parts of a plant cell newsela article
    8·1 answer
  • Why do elements of the same group have the same chemical properties?
    6·1 answer
  • What is the definition of an environmental factor?
    9·2 answers
  • Lionfish are native to the tropical waters of the Indo-Pacific. What conclusions can be made about the impact of climate change
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!