You devise a method to surgically re-route blood around partially occluded vessels. However, the new distance the blood must travel is 5 times longer than the old distance. Assuming the radius of the new vessel is the same as the unoccluded radius of the old vessel, how occluded should a blood vessel be before the resistance in the new route is less than the resistance in the occluded route

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

thinking it would be physical characteristics

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully