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
Alinara [238K]
3 years ago
15

sodium ions are moving with their concentration gradient with the use of a protein channel across a plasma membrane. Determine t

he type of membrane transport used to transport these sodium ions
Chemistry
2 answers:
jeka57 [31]3 years ago
6 0

Answer:

Explanation:

When there is difference between the concentration of the content of a cell and the solution surrounding the cell, there will be an Electrochemical gradient or Concentration gradient. Therefore, some solute will tend to move from the region of high concentration to the region of lower concentration through the cell membrane.

Such a movement is called Primary Active Transport

Ilya [14]3 years ago
6 0

Answer: the membrane transport used is "facilitated diffusion"

Explanation:

Facilitated diffusion transport (passive transport) is a spontaneous transport of molecules or ions across a biological membrane via membrane Proteins that act as mediators. These membrane Proteins (transporters or permeases) speed up the movement of solutes across the membrane by facilitating diffusion.

Sodium ion, glucose ions and some other ions need to be transported across d plasma membrane which is made of lipid bilayer that is impermeable. For this transport to occur, a mechanism of bypassing or creating an alternative path across the plasma membrane is needed. This mechanism is performed by permeases(membrane proteins).

The membrane proteins act as transport facilitator by lowering the activation energy for effective transport of polar compound and ions.

You might be interested in
Would the molecules in a gas have more or less movement than the molecules in a solid ? PLEASE HELP WILL MARK BRAINLY
Sergeeva-Olga [200]

Molecules in a gas will have more movement than molecules in a solid. This is because the molecules in solid matter are packed very tightly together to maintain its shape, whereas with gases they are spaced much further apart and fairly free to move. Hope this helps!

6 0
3 years ago
While analyzing a fingerprint, the forensic expert identified a ridge that had a short arm originating from it. Which ridge char
Diano4ka-milaya [45]
The answer is spur, hope this helped (:
7 0
3 years ago
What element has 80 protons, 81 neutrons, 79 electrons?
Mariana [72]

Answer:

The element will be ^{161}_{80}X

Explanation:

Given that,

Number of proton = 80

Number of neutron = 81

Number of electron = 79

We know that,

The atomic number is equal to the number of proton.

So, the atomic number is 80.

According to atomic number,

The element will be mercury.

We need to calculate the atomic mass

Using formula of atomic mass

atomic\ mass=atomic\ number+number\ of\ neutron

Put the value into the formula

atomic\ mass=80+81

atomic\ mass=161

We need to find the element

Using atomic mass and atomic number

atomic\ mass\ number A=161

atomic\ number Z=80

So, the element will be

^{A}_{Z}X

Put the value of A and Z

Hence, The element will be ^{161}_{80}X

5 0
3 years ago
The vapor above a mixture of pentane and hexane at room temperature contains 35.5% pentane by mass. What is the mass percent com
FrozenT [24]
  • The mass percent of Pentane in solution is 16.49%
  • The mass percent of Hexane in solution is 83.51%

<u>Explanation</u>:

  • Take 1 kg basis for the vapor: 35.5 mass% pentane = 355 g pentane with 645 g hexane.
  • Convert these values to mol% using their molecular weights:

Pentane: Mp = 72.15 g/mol -> 355g/72.15 g/mol = 4.92mol

Hexane: Mh = 86.18 g/mol -> 645g/86.18 g/mol = 7.48mol

Pentane mol%: yp = 4.92/(4.92+7.48) = 39.68%

Hexane mol%: yh = 100 - 39.68 = 60.32%

Pp-vap = 425 torr = 0.555atm

Ph-vap = 151 torr = 0.199atm

  • From Raoult's law we know:  

Pp = xp \times Pp - vap = yp \times Pt                                       (1)

Ph = xh \times Ph - vap = yh \times Pt                                       (2)

  • Since it is a binary mixture we can write xh = (1 - xp) and yh = (1 - yp), therefore (2) becomes:

(1 - xp) \times Ph - vap = (1 - yp) \times Pt                                   (3)

  • Substituting (1) into (3) we get:

(1-xp) \times Ph - vap = (1 - yp) \times xp \times Pp - vap / yp            (4)

  • Rearrange for xp:

xp = Ph - vap / (Pp - vap/yp - Pp - vap + Ph - vap)      (5)

  • Subbing in the values we find:

Pentane mol% in solution: xp = 19.08%  

Hexane mol% in solution: xh = 80.92%

  • Now for converting these mol% to mass%, take 1 mol basis for the solution and multiplying it by molar mass:

mp = 0.1908 mol \times 72.15 g/mol

     = 13.766 g

mh = 0.8092 mol \times 86.18 g/mol

     = 69.737 g

  • Mass% of Pentane solution = 13.766/(13.766+69.737)

                                                       = 16.49%

  • Mass% of Hexane solution  = 83.51%
8 0
3 years ago
As the mass of the nucleus increases, what happens to the ratio of neutrons to protons in stable isotopes? A. The neutron:proton
vladimir1956 [14]
Propeen is nute 18?.9
8 0
2 years ago
Other questions:
  • Fill In The Blanks:
    5·1 answer
  • What are the reasons global warming is caused my humans and animals. Plz help 100 points
    5·2 answers
  • In summary, a heritable characteristic that helps an animal or plant to have more offspring which survive to reproduce will tend
    8·1 answer
  • How is heat transferred when a person holds a pen that is already at body<br> temperature?
    15·2 answers
  • Hydrates that have a low vapor pressure and remove moisture from air are said to be ___. Question 8 options: effloresce hygrosco
    10·1 answer
  • What is plasma and where can you find it
    15·2 answers
  • How many kilocalories of heat are released when 75 g of steam at 100 degrees Celsius is converted to ice at 0 degrees Celsius?
    15·1 answer
  • Calculate the mass and charge of one mole of electrons​
    13·1 answer
  • Which of the following statements about complete metamorphosis is TRUE?
    12·1 answer
  • I need help asap! !!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!