Mcb 2010l Report 2

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1.What is the purpose of staining samples?A) To increase the contrast and visibility of the specimen B) To kill the specimen
C) To see the specimen without the aid of a microscope
D) To make the specimen appear larger in the microscope2.Which of the following are bacterial SHAPES? (Select all that are correct.  Be sure to select the appropriate scientific name. You lose points for choosing incorrectly or for not choosing a correct choice.)A) Vibrio B) Strepto

C) Spirillum
D) Staphylo
E) Cocci
F) Bacillus
G) Diplo3.A chromophore is the:A) transparent component of the dye B) the part of the dye that does not bind.
C) the colored portion to the dye.
D) part of the dye that is not seen.
E) the part of the dye that is not used up.4.Which type of staining method would you use to determine endospore-forming cells from non-endospore-forming cells?A) regular stain B) simple stain
C) differential stain
D) specialized stain5.An acidic dye is:A) a dye the carries no charge. B) a dye the carries a negative charged chromophore.
C) a dye that carries no chromophore.
D) a dye that carries a positive charged chromophore.
E) a dye the carries both positive and negative charged chromophores6.What are the common arrangements of bacteria? (Select all that are correct.  Be sure to select the appropriate scientific name. You lose points for choosing incorrectly or for not choosing a correct choice.)A) Strepto B) Cocci

C) Vibrios
D) Diplo
E) Staphylo
F) Bacillus
G) Spirillum7.Before cells are stained, the specimen must be fixed. Fixing a specimen accomplishes all of the following EXCEPT which one?A) Fixation attaches cells to the slide so they will not wash off during the staining process. B) Fixation differentiates the various cells being observed. C) Fixation kills the cells that are being stained for observation. D) Fixation preserves cellular structure in the natural state with minimum distortion.8.This is a multiple select question.  Choose all of the following...
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