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【简答题】
中国传统美学有两个追求:错彩镂金和芙蓉在“传统中式风格”中可以表现为()()
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举一反三
【单选题】The order of stains in Gram-staining procedure is
A.
Crystal violet, Iodine solution, Alcohol, Saffranine
B.
Iodine solution, Crystal Violet, Saffranine, Alcohol
C.
Alcohol, Crystal Violet, Iodine solution, Saffranine
D.
None of these
【单选题】Assume that you are viewing a Gram-stained field of red cocci and blue bacilli through the microscope. You can safely conclude that you have
A.
made a mistake in staining
B.
two different species
C.
old bacterial cells
D.
young bacterial cells
【简答题】After Gram staining, the Gram-negative bacteria are in ( ) .
【单选题】Which of the following about Gram staining is most correct:
A.
Heating is done to promote entry of stain into cell wall of both Gram +ve and –ve bacteria
B.
If observed staining technique and microscopy before decolorization, both Gram +ve and –ve bacteria appear same
C.
Teichoic acid is present in the cell wall of Gram–ve bacteria
D.
Results must be observed under electron microscope
【简答题】Pair the steps and solutions used in Gram staining.
【简答题】Complete the following sentences according to the text. Most organisms are classified by their reaction to ( ). An organism that is ( ) must have an intact cell wall. The basic dye diffuses ...
【单选题】What is the reason for decolourisation in gramnegative bacilli in Gram staining?
A.
Due to the two dyes used in staining
B.
Thin peptidoglycan layer
C.
Cell membrane integrity
D.
Teichoic acid
【单选题】In the Gram staining, after decolorizing with alcohol the Gram (-) cells stain _________, while Gram (+)cells stain ___________.
A.
blue:red
B.
red:blue
C.
colorless:blue
D.
blue:colorles
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