Answer:
Oxygen
Explanation:
In a molecule of water ie H20, Oxygen is more electronegative and hence attracts more electrons to itself making Hydrogen partially positive ♂️
there aren't many enzymes in food, mainly in fruits, the enzymes in friuts are very similar to ptylin found in the mouth that help break down sugar, they do not need to be ingested before they activate, a proof of this is the apple test, buy an apple, take a bite and leave it without covering it for a few minutes, you'll notice that the bitten part starts turning yellowish brown because the enzymes in the apple are already breaking it down.
In summary, they do not need to be ingested before activation, and the major characteristic of an enzyme is that they do not change after they react with (breakdown) food, so they are in the same form before and after they finish breaking down the food.
<span>Before answering the question, some explanation about the purpose of flow cytometry.
The cytometry analysis provides us with the presence and the abundance of </span><span>clusters of differentiation (CD), for example, the research of CD2, CD3 and CD4 in lymphocytes.
</span>These CDs will be marked (if they are present) with specific antibodies linked with different fluorochromes, and when the <span>cells exit the flow cell intersect, a laser detects these fluorochromes (representing CDs) and count them.
</span><span>The result will be displayed in a graph showing the frequency of the CDs with spots of different colours.
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