Which of the following is NOT a common basic stain? Select one: a. Crystal viole

Question

Which of the following is NOT a common basic stain?

Select one:

a. Crystal violet

b. Safranin

c. Methylene blue

d. Eosin

Which of the following interpretations/conclusions would NOT be from the result/observation of red cells after a Gram-stain?

Select one:

a. Loss of Gram stain reaction

b. Over decolorization

c. Absence of decolorization step

d. Gram negative cells

e. Absence of cystal violet stain step

i

n brightfield microscopy, light ____________ a specimen to make the specimen visible to someone looking through the ocular lens.

Select one:

a. Passes through

b. Changes wavelength in

c. Passes around

d. Intensifies in

These cells have a higher lipid content because of their outer membrane and thinner peptidoglycan:

Select one:

a. Merozites

b. Gram positive

c. Green algae

d. Gram negative

e. Endospores

What allows Gram-positive cells to retain the crystal violet stain through the decolorization step compared to Gram-negative cells?

Select one:

a. High lipid content

b. Presence of an outer membrane

c. LPS

d. Porins

e. Teichoic acid cross-linking and thick peptidoglyca

Explanation / Answer

1.d)Eosin

2.c)Absense of decolorisation step.

3.a)passes through

4.d)Gram negative

5.e)Teichoic acid cross-linking and thick peptidoglycan

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.