QUIESTIONS AND VERIFIED
COREECT ANSWERS
GRADED A+
What are the differences between Primary, Secondary, Tertiary, & Quaternary levels of protein
structure? - CORRECT ANSWER-Primary- series of amino acid bound in a chain
Secondary- structure develops when the chain forms hydrogen bonds
Tertiary- more folding into a 3D mass stabilized by hydrogen, ionic, and disulfide bonds
Quaternary- proteins with more than one polypeptide chain. Each chain has a different color
What is the central dogma? - CORRECT ANSWER-DNA -> RNA -> Protein
The two step process in which information in genes flows into proteins (transcription and
translation)
What are the 4 main families of macromolecules? What are they each important for? -
CORRECT ANSWER-carbohydrates, lipids, protein, and nucleic acid
carbohydrates- glucose, fructose, maltose, lactose, sucrose, starch, and cellulose
lipids- fats, oils, cholesterol, waxes, steroids
protein- chain of amino acid, part of cell wall & membrane, ribosomes, and antibodies
nucleic acids- DNA and RNA
, How to write and identifying the scientific name of an organism - CORRECT ANSWER-First
name is capital (genus), Second is lowercase (species), whole thing is italicized
order of taxonomic categories - CORRECT ANSWER-Domain, Kingdom, Phylum, Class,
Order, Family, Genus, Species
What are the 5 I's and what is involved in each step? - CORRECT ANSWER-inoculation-
removing and placing sample on medium
incubation- storing in area to provide proper growth
isolation- separate an Individual bacteria from others (streak plate, loop dilution, spread plate)
inspection- observing appearance
identification- biochemical tests
selective media - CORRECT ANSWER-allows growth of one species but inhibits growth of
another
differential media - CORRECT ANSWER-inhibits growth of both but causes them to grow
differently
what are three elements of good microscopy? - CORRECT ANSWER-1. magnification
2. resolution
3. contrast
What are the differences in simple, differential, and special stains and when would we use
each? - CORRECT ANSWER-simple- one dye, use: shape, size, and arrangement
differential- primary dye & counterstain, ex: gram and acid; use: distinguishes cell types and
their parts