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3 years ago

The diagram is a model of one way that materials move into a cell.

Chemistry

2 answers:

Vlad [161]3 years ago

8 0

Answer:

B. The cell membrane surrounds particles outside the cell.

Explanation:

The last step is when the cell membrane completely surrounds particles outside the cell.

This process is often known as endocytosis.

endocytosis is the process whereby a cell ingests materials by engulfing them using the cell membrane.
In this process, the cell membrane completely covers the food.

alex41 [277]3 years ago

7 0

Answer:

The answer above is incorrect. The correct answer is A:

A vacuole carries particles into the cell

Explanation:

Ape-x

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Is always

Studentka2010 [4]

Answer:

o atom, smaller, anion is the right answer of the following

7 0

3 years ago

For an alloy that consists of 91.0 g copper, 111 g zinc, and 7.51 g lead, what are the concentrations (a) of Cu (in at%), (b) of

viktelen [127]

Answer:

$\% Cu=45.2\%\\\\\% Zn=53.6\%\\\\\% Pb=1.2\%$

Explanation:

Hello!

In this case, given the masses of copper, zinc and lead, it is possible to compute the moles via their atomic masses first:

$n_{Cu}=\frac{91.0gCu}{63.55g/mol}=1.432mol\\\\ n_{Zn}=\frac{111gZn}{65.41g/mol}=1.697mol\\\\n_{Pb}=\frac{7.51gPb}{207.2g/mol}=0.0362mol\\$

Now, we compute the atomic percentages as shown below:

$\% Cu=\frac{1.432}{1.432+1.697+0.0362}*100\% =45.2\%\\\\\% Zn=\frac{1.697}{1.432+1.697+0.0362}*100\%=53.6\%\\\\\% Pb=\frac{0.0362}{1.432+1.697+0.0362}*100\%=1.2\%$

Best regards!

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3 years ago

If you change the state of something, say, liquid to solid, is it a physical or chemical change?

Georgia [21]

I believe that it is a chemical change.

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3 years ago

Read 2 more answers

What were the main causes of conflict between the nawab of bengal and the east india company

stich3 [128]

1 The British opposed the succession of Sirajuddaulah

2 The British misued the trade concessions

3 The British attacaked the French settlement of
Chandranagar in Bengal

<span>4 The Incident of Black hole had occured</span>

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4 years ago

What would a cheap fiance buy his bride to be? Can I have an answer for this using one of the elements on the periodic table?

s2008m [1.1K]

Sure thing! Zirconium.

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4 years ago