The table shows the tolerance range of some common freshwater organisms to different ph ranges in water. suppose a coal-burning power plant in cowtown begins to produce acid rain that falls on lake bully. which ecological impact is least likely if the water of lake bully falls from a ph of 7.0 to a ph of 5.0.

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure