In order to be carried in the chylomicron, retinol (once in the enterocyte) is esterified by lecithin retinol acyl transferase.
All-trans-retinol is referred to as vitamin A, when a fatty acyl group is esterified to the hydroxyl terminus of retinol, a storage form of retinol, the retinyl ester, is formed. In tissues, retinal serves as an intermediate in the synthesis of retinoic acid from retinol.
Cellular respiration is a chemical oxidation-reduction reaction that provides the energy needed for a cell to function.C6H12O6 + O2 == CO2 + H2O (+ ATP)
The molecules involved in cellular respiration are:Oxygen O2: from the air we breatheCarbohydrate (glucose): represents a source of energyCarbon dioxide CO2: from glucose degradationATP: the energetic molecules used by the cell
And finally H2O.
Answer:
I would say the second one.
Explanation:
I'm sorry if it's wrong
l think it is commensalism-lt is the relationship in which one organism benefits by the other is neither helped nor harmed
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