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koban [17]
3 years ago
7

What is the cell membrane?

Chemistry
2 answers:
lora16 [44]3 years ago
7 0

A cell membrane is  very thin membrane, composed of lipids and protein, that surrounds the cytoplasm of a cell and controls the passage of substances into and out of the cell Also called: plasma lemma , plasma membrane.

And in the worksheet the answer should be I. Allows materials to pass in and out of the cell.

nadya68 [22]3 years ago
6 0

I believe the answer is E.

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Explanation:

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Which structural formula represents an unsaturated hydrocarbon?
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4

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your chosen answer is right as unsaturated mean contains double bond and 1st and 3rd is Wrong as Carbon only can have 4 bonds and 2nd is Wrong as it is saturated.

hope this helps :)

5 0
3 years ago
This is how fluorine appears in the periodic table.9 F Flourine 19.00 What information does “9” give about an atom of fluorine?
siniylev [52]
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8 0
3 years ago
Read 2 more answers
Jeffrey is on his skateboard and starts skating down a ramp. Ten seconds later he is travelling at
AfilCa [17]

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7 0
3 years ago
If 10.7 grams of NH4Cl is dissolved in enough water to make 800 mL of solution,what will be it's molarity
Ksju [112]
<h3><u>Answer;</u></h3>

Molarity = 0.25 M

<h3><u>Explanation;</u></h3>

Molarity is given by moles/Liter.

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= (10.7g NH4Cl)/(53.5g/mol NH4Cl)

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Then  we convert to liters:

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Therefore; molarity = 0.2moles/0.8L

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4 0
3 years ago
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