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3 years ago

Anyone know why its important for membranes to be selectivity permeable?

Chemistry

1 answer:

lorasvet [3.4K]3 years ago

4 0

The term, selectively permeable, refers to the fact that the membrane allows some substances or molecules to enter the cells, and others to be prevented from entering. It also allows substances to leave the cell. All of this is dependent on the size of the molecule and the concentrations on either side of the membrane.

Selectively permeable membranes are important in maintaining homeostasis, fluid and electrolyte balance, and cellular health. Cells need to receive glucose and other nutrients in order to carry on normal cellular processes, and eliminate waste products of metabolism to avoid the accumulation of cellular toxins which can disrupt cellular processes and lead to cellular death.

P.s this is not my answer

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Adam's dad takes the parkway to work. It takes him 45 minutes to travel from mile marker 145 where he enters the parkway to his

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This would be C, 1.044 mi/min

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3 years ago

An atomic caution with the charge of +1 has the following electron configuration:1s22s22p63s23p6What is the chemical symbol for

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1s22s22p63s23p6

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1 year ago

The accepted density of copper is 8.96 g/mL. Calculate the percent error of a student’s measurement which resulted in a density

uranmaximum [27]

Answer:

<h3>The answer is 1.12 %</h3>

Explanation:

The percentage error of a certain measurement can be found by using the formula

$P(\%) = \frac{error}{actual \: \: number} \times 100\% \\$

From the question

actual density = 8.96 g/mL

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We have

$p(\%) = \frac{0.1}{8.96} \times 100 \\ = 1.1160714...$

We have the final answer as

Hope this helps you

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3 years ago

1) The equilibrium constant Kc of the reaction

vfiekz [6]

Answer:

a) 0.30

Explanation:

Kc = [C] [D] / ([A] [B])

Set up an ICE table:

$\left[\begin{array}{cccc}&Initial&Change&Equilibrium\\A&0.4&-x&0.4-x\\B&0.4&-x&0.4-x\\C&0&+x&x\\D&0&+x&x\end{array}\right]$

Plug in values and solve:

9 = x² / (0.4 − x)²

3 = x / (0.4 − x)

1.2 − 3x = x

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4 years ago

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3 years ago

Read 2 more answers