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Masja [62]
2 years ago
10

The diagram below represents a portion of a cell membrane. The arrow indicates that the cell membrane is carrying out the proces

s of...
​
Chemistry
1 answer:
Llana [10]2 years ago
8 0

Answer:

I'm feeling nice today so heres the answer

Explanation:

In the portion of the cell membrane shown in the diagram, the arrow indicates the process of active transport.

Explanation:

Active transport is one of the mechanisms of transmembrane transport, which involves the use of energy. The diagram (see image) shows the hydrogen (H⁺) output from the cytoplasm to the extracellular space, through an H⁺ pump —consuming ATP— which represents an active transport process.

The hydrophobic nature of the cell membrane prevents the free passage of hydrosoluble elements or ions, as H⁺, so they require the use of active transport to pass through it.

The other options presented are not correct, because

Respiration is a process that occurs in the mitochondria.

Diffusion is a passive transport process that does not require energy.

Cellular recognition depends on membrane proteins that act as specific receptors.

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Fill in the blanks with the correct word.
Vitek1552 [10]

Answer:

1. During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will continue to move across the membrane in both directions.

Hopes it Helps!

6 0
2 years ago
Read 3 more answers
A mixture of KCl and KNO3
Tems11 [23]
Answer is: <span>The percent of KCl in the mixture is closest to </span><span>a) 40%.
</span>
If we use 100 grams of mixture:
ω(K) = 44.20% ÷ 100% = 0.442.
m(K) = 0.442 · 100 g = 44.2 g.
n(K) = 44.2 g ÷ 39.1 g/mol.
n(K) = 1.13 mol.
n(KCl) + n(KNO₃) = n(K)
m(KCl) = x.
m(KNO₃) = y.
Two equtions:
1) x + y = 100 g.
2) m(KCl)/M(KCl) + m(KNO₃)/M(KNO₃) = 1.13 mol.
x/74.55 g/mol + y/101.1 g/mol = 1.13 mol.
From first equation find x = 100 - y and put in second equation:
(100 - y)/74.55 + y/101.1 = 1.13 /×101.1.
135.61 - 1.356y + y = 114.24.
0.356y = 22.37 g.
y = 62.83 g.
x = m(KCl) = 100 g - 62.83 g = 37.17 g.
8 0
2 years ago
Read 2 more answers
Draw the product that is expected when hexanoyl chloride is treated with Et2CuLi
PolarNik [594]

Answer:

Product formed is octan-3-one.

Explanation:

Et_2CuLi is a Gilman reagent. General formula of Gilman reagent is R_2CuLi.

Where R is alkyl group or aryl group.

Gilman reagents react with the organo halides to replace halides with alkyl group or aryl group and this reaction is known as Corey–House synthesis.

When hexanoyl chloride is treated with Et_2CuLi, the chloride group of the hexanoyl chloride is substituted with the ethyl group of the Et_2CuLi to form octan-3-one with the removal of EtCu and LiCl.

4 0
2 years ago
Which equations shows the complete dissociation of a strong base?
galben [10]
The correct answer is the fourth option. The complete dissociation of a strong base is BOH + h20 -> B+ + OH- + H20 since this is the only base from the choices given. A base is a substance that accepts hydrogen ions. 
3 0
2 years ago
Read 2 more answers
For the reaction 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g), what volume of a 0.945 M solution of FeCl2 is required to react comp
Mnenie [13.5K]

Answer:

0.01M

Explanation:

Given paramters:

Volume of FeCl₂ = ?

Concentration = 0.945M

Number of molecules of O₂ = 4.32 x 10²¹molecules

Solution:

The balanced reaction equation is given below:

           4FeCl₂ + 3O₂ → 2Fe₂O₃ + 4Cl₂

Now, to solve the problem we use mole relationship between the compounds.

We work from the known to the unknown compounds. Here, the known is the oxygen gas because from the given parameters we can estimate the number of moles of the reacting gas.

  number of moles of O₂ = \frac{number of elementary of particles}{6.02 x 10^{23}}

number of moles of O₂ =  \frac{4.32 x 10^{21}}{6.02 x 10^{23}}

number of moles of O₂ = 0.007mole

now, from the reaction equation we find the number of moles of the FeCl₂:

   3 mole of O₂ reacted with 4 moles of FeCl₂

0.007mole of O₂ reacted with \frac{4 x 0.007}{3} = 0.0096mole O₂

Now to find the volume of FeCl₂ we use the expression below;

       volume of FeCl₂ = \frac{number of moles}{concentration}

                                   =  \frac{0.0096}{0.945}

                                    = 0.01L

7 0
2 years ago
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