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LenaWriter [7]
3 years ago
8

The ___ ___ is responsible for maintaining homeostasis within any cell.

Biology
2 answers:
dmitriy555 [2]3 years ago
8 0
Cell membrane is responsible 
Brilliant_brown [7]3 years ago
7 0
The cell membrane is the on basicly in charge
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B. The water is likely contaminated with high levels of pollution or waste
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How do we classify rocks
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Which statement about neural reflex arcs is incorrect? Which statement about neural reflex arcs is incorrect? Their function is
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The incorrect statement is that the neural reflex arc becomes slow by the hormones involved.

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8 0
3 years ago
Assume that you have 1 mL of a solution of amylase (an enzyme) at a concentration of 15 mg protein/mL. Calculate the volume of d
lidiya [134]

Answer:

42,5 mL

Explanation:

We need to use the serial dilution formula beacuse we start with a stock concentrate solution and we need to prepare a new less concentrated one.

DF=\frac{Vi}{Vf}

<u>DF in the dilution factor, Vi is the initial volume and Vf is the final volume.</u>

The first step is to have the same measurment unit so we need to convert 345 µg to mg.

we know that 1 µg equals 0,001 g, hence:

345 µg = 0,345 mg

now the final volume is 0,345 mg  protein/ mL and the inital volume is 15mg protein/mL, both of them are in the same unit so we can use the formula

DF= \frac{15mg protein/mL}{0.345mg protein/mL}

DF= 43,5 mg protein/ mL

Now since the question said that we already have 1.0mL of the amylase stock solution we need to subtract that 1.0mL to the 43,5 mg protein/mL

43,5mL-1,0mL = 42,5 mL

So, we need 42,5 mL of diluting buffer if we want a final concentration of 345 µg protein/mL (0.345 mg protein/mL)

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3 years ago
Which of the following was an effect of World War II on the agriculture industry?
vladimir1956 [14]
I would guess C, hope that helps!
6 0
3 years ago
Read 2 more answers
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