2 years ago

What is the cell membrane?

2 answers:

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]2 years ago

6 0

I believe the answer is E.

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A fish tank holds 29 gal of water. Using the density of 1.00 g/mL for water, determine the number of pounds of water in the fish

vova2212 [387]

1. Convert gallons to mL. 1 gal = 3785.4117840007 mL, multiply that by 29 and get 109776.94173602 mL.

2. Since there is one gram per every mL, there are 109776.94173602 g of water in the fish tank.

3. Convert g to pounds. 1 g = 0.0022 pounds. Multiply 109776.94173602 by 0.0022 and end up with about 241.5 pounds of water.

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Which of these compounds has the correct chemical formula? 1. ba3po4 2. (nh4)2so4 3. mg2oh 4. lif2 5. caoh?

sergiy2304 [10]

Ba3PO4 is not neutral, it is positive. (NH4)2SO4 is neutral, the charges cancel.
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