1. If the objective lenses of a microscope can specimen, the lenses are said to

Question

1. If the objective lenses of a microscope can specimen, the lenses are said to be A. equifocal. B. totifocal. from one to another without losing focus on the witched parfocal. D. optifocal. 2. A microscope that magnifies slight microscope retces in the refactive index of cell structures is called a e. B. electror the D. densitometric . 3. The that produces a bright image of the spesimen against a microscope A. phase-contrast B. electron C. bright-field dark background is called a (n) 4. Prior to staining, smears of microorganisms are heat-fixed in A. allow eventual visualization of intermal structures B. ensure removal of dust particles from the slide surface O attach it firmly to the slide. D, create small pores in cells that facilitates binding of stain to cell structures. organisms will be 5. If the decolorizer is left on too long in the Gram-staining procedure, gram-positive stained, A. purpie; blue B. purple; colorless C. purple; pink @ pink; pink and gram-negative organisms will be stained 6. If the decolorizer is not left on long enough in the Gram-staining procedure, gram-positive or be stained g purple; purple B. purple; colorless C. purple; pink D. pink; pink organisms will and gram-negative organisms will be stained

Explanation / Answer

All options marked are in the sheet are correct.

1. c

2. a

3. d

4. c

5. d

6. a

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