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
alexira [117]
3 years ago
14

Imagine a cell has a higher concentration of Na inside than outside. Imagine the membrane voltage on this cell is negative (Vm &

lt; 0). What direction is the electrical force on Na
Biology
1 answer:
matrenka [14]3 years ago
6 0

Answer and explanation:

If a cell has a higher concentration of sodium inside than the sodium concentration that there is outside of it, there will be a chemical gradient that will direct the sodium to the outside, to equate the concentrations between the inside of the cell and the outside of the cell.

The membrane voltage on cells depends on the conductance of each ion. The more conductant an ion is, the more likely is that it will go through the membrane from the inside to the outside or vice versa. This conductivity relies on the number of active protein channels specific to that ion that can be found in the membrane. If the membrane voltage is negative when the cell is at resting potential, it means that the most conductant ion is one whose equilibrium potential is negative as well. Sodium's equilibrium potential is positive, which suggests that there is another ion inside this cell that is more conductant and whose equilibrium potential is negative - probably potassium.

Given that the membrane voltage is negative, which means that there are more positively charged particles outside than inside, the sodium will most likely flow from the outside to the inside - the electrical force on sodium will be from the outside to the inside.

The determining direction of the sodium will be given by the electrochemical gradient and will depend on the magnitude of the chemical gradient and the electrical one.

You might be interested in
What is an amino group made out of? What specific parts of cells can they be found in?
EastWind [94]

Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike prokaryotes, eukaryotic cells also possess internal membranes that encase their organelles and control the exchange of essential cell components. Both types of membranes have a specialized structure that facilitates their gatekeeping function.

8 0
3 years ago
Why is biodiversity important to ecosystems?
Ber [7]
It boosts ecosystem productivity where each species no matter how small have a role to play
3 0
3 years ago
When lemming populations decline, populations of Arctic foxes also decrease. The limiting factor on the population of Arctic fox
kolbaska11 [484]

The limiting factor on the population of Arctic foxes is density-dependent. In population ecology, density-dependent processes happen when population growth rates are regulated by the density of a population. Density-dependent factors are factors where the effects on the size or growth of a population vary with the density of the population itself.

7 0
3 years ago
Read 2 more answers
Give two ways to preserve and conserve endemic species.​
Jobisdone [24]

Educate your family about endangered species in your area.

Recycle and buy sustainable products.

Recycle and buy sustainable products.

Reduce your water consumption.

Volunteer. If you don't have money to give, donate your time

6 0
3 years ago
When Chris describes the practices, values, and goals shared by a group of people, Chris is referring to their
Katyanochek1 [597]

Answer:

This question lacks options; they are

A) Moral

B) Culture

C) Society

D) Civilization

The answer is B. Culture

Explanation:

Culture refers to the customs or habitual practices of a group of people. It describes the beliefs, values, goals etc which is peculiar to a group of people or individuals. For example, the dressing, religious practices, music etc common to a group of people is their CULTURE.

Based on this explanation, the practices, values, and goals shared by a group people as described by Chris is referred to as their CULTURE.

7 0
3 years ago
Other questions:
  • ______ is plant response to contact with a solid object.
    6·1 answer
  • Diseases carried from person to person through other hosts, such as animals or insects, are known as _____
    6·1 answer
  • A dihybrid cross is performed between plants that differ in two Mendelian traits: Stem length (T or t) and flower coloration (R
    11·1 answer
  • Easy question. Please answer should include explanation.
    6·1 answer
  • which of the following circumstances could be a cause of a miscarriage? a. maternal hormone balance b. genetic normality c. mate
    9·1 answer
  • A characteristic of acids is that they react with metals to: form non-metals release water release hydrogen gas produce bases
    13·2 answers
  • The uterine phase where the thickness of the endometrium doubles is the
    12·1 answer
  • 1. Which of the following is the most appropriate definition of organic compound?
    15·2 answers
  • Please help me I’m having trouble answering this
    15·2 answers
  • Someone pls help me!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!