Tubers - they can act as both a source and sink for molecules such as glucose 
        
                    
             
        
        
        
the loss of electrons is known as oxidation!
 
        
                    
             
        
        
        
The correct answer would be C. vacuole. The organelle that helps transport fertilizer from the soil to the leaf would be the vacuole because it can store bubbles, food, or waste.
        
             
        
        
        
Answer:
A protist
Explanation:
In the given question, the characteristic of an unidentified organism are given which are:
1. The organism is unicellular and autotrophic which means that it is a producer and belongs to a plant like organism.
2. The membrane bound nucleus means that the organism is an eukaryote.
The organism is thus an unicellular, autotrophic and an eukaryote could be a species of algae which is considered a protist. The protists are the organisms which shows characteristic of the ukaryotes but are not considered true plants and animals.
Thus, a protist is correct answer.