Answer:
c. provide the energy that establishes the proton gradient
Explanation:
They are made of monosaccharides or simple sugars (glucose, fructose, and galatose)
Plants get nitrogen from the soil but it has to be turned into nitrates (by lighting or nitrogen fixation); this because nitrogen in the air is very unreactive, Then the animal eats the plant.
Bacteria can get nitrogen simply from the air
Answer:
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Explanation:
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Answer:
Hydrogen
Explanation:
Because helium is a noble gas with a full valence shell, it does not bond with other atoms readily. This means that it cannot be a molecule. However, hydrogen can bond with a lot of things, because of its unique property of having just one electron, meaning that it can donate or accept one, making it able to easily become a molecule. Hope this helps!