The process that releases energy from food in the presence of oxygen is ?

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.

$DF=\frac{Vi}{Vf}$

DF in the dilution factor, Vi is the initial volume and Vf is the final volume.

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)

8 0

4 years ago

You would like to know whether the progeny of a pair of mated fruit flies are distributed among the resulting four phenotypic cl

Effectus [21]

Answer:

C. The differences between the observed and expected counts are too large to be attributed to chance.

Explanation:

The p-value of the statistic represents the chance that the observed count is based on luck or chance. When p value too high, the research can't be used since the chance that its not represent real condition are too high. Most researchers use 5% (0.05) as the cutoff of something called statistically significant. In this research, the p-value is 0.04 or 4%, so it is statistically significant.

3 0

3 years ago

The earth is surrounded by a _______________________ of gases called the ________________. The atmosphere is very ______________

deff fn [24]

The earth is surrounded by a layer of gases called the atmosphere. The atmosphere is very important to life on Earth and does many things to help protect life and help life to survive.

The atmosphere absorbs the heat from the Sun and keeps the heat inside the atmosphere helping the Earth to stay warm, called the Greenhouse Effect.

7 0

3 years ago

Which type of lipid is most important in biological membranes?

Andreas93 [3]

Phospholipids is the answer

3 0

3 years ago

Chemical and Waste Management:

butalik [34]

Answer:

los cupoo

Explanation:

kk

8 0

3 years ago