The movement of Ions or molecules across a membrane from low concentration to high concentration. Which requires energy. 
        
                    
             
        
        
        
Answer:
add a water molecule to break bonds.
Explanation:
Fat digestion occurs in the small intestine where pH is alkaline. Protein digestion starts in the stomach at acidic pH but is completed in small intestine under the conditions of alkaline pH. Both processes use water molecules to break the covalent bonds of the nutrients. Peptidases present in small intestine add water molecules to the peptide bonds that join two amino acids together. This releases the individual amino acids from peptides. Similarly, the enzyme lipase adds water molecules to break the covalent bonds between fatty acids and glycerol of lipid droplets. 
 
        
             
        
        
        
Answer:
i also need the answer to this question please!
Explanation:
 
        
                    
             
        
        
        
Answer:
At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station.
 
        
             
        
        
        
I think the answer would be false. Not all organisms has the same biochemical molecules. Every organism has their own unique characteristic and are made up of different molecules. There may be some but they are only a small portion of the whole system.