Which of the following is an assumption that Koch made that is not true in all cases? * a. different test subjects will have different levels of susceptibility to a disease
b. the causative agent cannot always be separated from the diseased organism and grown in a culture
c. the causative agent can be isolated from an organism that developed the disease through innoculation
d. the suspected causative agent will be found in diseased organisms but not healthy organisms

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

answer; hypnagogic sensations)