Power Point Clicker Questions prepared by Bradley W
Power. Point® Clicker Questions prepared by Bradley W. Christian, Mc. Lennan Community College CHAPTER 3 Observing Microorganisms Through a Microscope © 2016 Pearson Education, Inc.
What is the function of the diaphragm on a compound microscope? a) b) c) d) magnifies the specimen focuses light through the specimen holds the microscope slide in position controls the amount of light entering the condenser © 2016 Pearson Education, Inc.
What is the function of the diaphragm on a compound microscope? a) b) c) d) magnifies the specimen focuses light through the specimen holds the microscope slide in position controls the amount of light entering the condenser © 2016 Pearson Education, Inc.
The ocular lens is used a) to remagnify the image formed by the objective lens. b) as the primary lens to magnify the specimen. c) to increase the light. d) to decrease the refractive index. © 2016 Pearson Education, Inc.
The ocular lens is used a) to remagnify the image formed by the objective lens. b) as the primary lens to magnify the specimen. c) to increase the light. d) to decrease the refractive index. © 2016 Pearson Education, Inc.
The measure of the light-bending ability of a medium is the a) b) c) d) illumination. magnification. refractive index. resolution. © 2016 Pearson Education, Inc.
The measure of the light-bending ability of a medium is the a) b) c) d) illumination. magnification. refractive index. resolution. © 2016 Pearson Education, Inc.
MOST ocular lenses magnify specimens by a factor of a) b) c) d) 10. 1000. 2000. © 2016 Pearson Education, Inc.
MOST ocular lenses magnify specimens by a factor of a) b) c) d) 10. 1000. 2000. © 2016 Pearson Education, Inc.
The ability of the lenses to distinguish fine detail and structure is called a) b) c) d) illumination. magnification. refractive index. resolution. © 2016 Pearson Education, Inc.
The ability of the lenses to distinguish fine detail and structure is called a) b) c) d) illumination. magnification. refractive index. resolution. © 2016 Pearson Education, Inc.
Which microscope uses an opaque disk to block light that would enter the objective lens directly? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
Which microscope uses an opaque disk to block light that would enter the objective lens directly? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
Which microscope uses an ultraviolet light source? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
Which microscope uses an ultraviolet light source? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
Which microscope illuminates specimens with blue light and produces three-dimensional images? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
Which microscope illuminates specimens with blue light and produces three-dimensional images? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
Which microscope forms an image from two sets of light rays, one from the light source and the other diffracted from a structure in the specimen? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
Which microscope forms an image from two sets of light rays, one from the light source and the other diffracted from a structure in the specimen? a) b) c) d) fluorescence microscope phase-contrast microscope darkfield microscope confocal microscope © 2016 Pearson Education, Inc.
What microscope uses a metal and diamond probe to produce a three-dimensional image? a) b) c) d) atomic force microscope darkfield microscope phase-contrast microscope transmission electron microscope © 2016 Pearson Education, Inc.
What microscope uses a metal and diamond probe to produce a three-dimensional image? a) b) c) d) atomic force microscope darkfield microscope phase-contrast microscope transmission electron microscope © 2016 Pearson Education, Inc.
Which microscope is especially useful in studying the surface structures of intact cells and viruses? a) b) c) d) transmission electron microscope scanning electron microscope phase-contrast microscope darkfield microscope © 2016 Pearson Education, Inc.
Which microscope is especially useful in studying the surface structures of intact cells and viruses? a) b) c) d) transmission electron microscope scanning electron microscope phase-contrast microscope darkfield microscope © 2016 Pearson Education, Inc.
In transmission electron microscopy, the specimen is placed on a a) b) c) d) copper mesh grid. glass slide. plastic slide. magnesium mesh grid. © 2016 Pearson Education, Inc.
In transmission electron microscopy, the specimen is placed on a a) b) c) d) copper mesh grid. glass slide. plastic slide. magnesium mesh grid. © 2016 Pearson Education, Inc.
Which microscope is extremely valuable for examining different layers of specimens and often involves the use of shadow casting? a) b) c) d) transmission electron microscope scanning electron microscope phase-contrast microscope darkfield microscope © 2016 Pearson Education, Inc.
Which microscope is extremely valuable for examining different layers of specimens and often involves the use of shadow casting? a) b) c) d) transmission electron microscope scanning electron microscope phase-contrast microscope darkfield microscope © 2016 Pearson Education, Inc.
With a scanning electron microscope, objects are generally magnified a) b) c) d) 100 to 100, 000 x. 100 to 10, 000 x. 1000 to 10, 000 x. © 2016 Pearson Education, Inc.
With a scanning electron microscope, objects are generally magnified a) b) c) d) 100 to 100, 000 x. 100 to 10, 000 x. 1000 to 10, 000 x. © 2016 Pearson Education, Inc.
With a transmission electron microscope, objects are generally magnified a) b) c) d) 1000 to 100, 000 x. 1000 to 10, 000 x. 10, 000 to 1, 000 x. 10, 000 to 100, 000 x. © 2016 Pearson Education, Inc.
With a transmission electron microscope, objects are generally magnified a) b) c) d) 1000 to 100, 000 x. 1000 to 10, 000 x. 10, 000 to 1, 000 x. 10, 000 to 100, 000 x. © 2016 Pearson Education, Inc.
Before microorganisms are stained, MOST appear ____ when viewed with brightfield microscopy. a) b) c) d) golden green colorless hollow © 2016 Pearson Education, Inc.
Before microorganisms are stained, MOST appear ____ when viewed with brightfield microscopy. a) b) c) d) golden green colorless hollow © 2016 Pearson Education, Inc.
The chromophore of basic dyes is a ____ and is ____ to MOST types of bacteria. a) b) c) d) cation; attracted anion; attracted cation; not attracted anion; not attracted © 2016 Pearson Education, Inc.
The chromophore of basic dyes is a ____ and is ____ to MOST types of bacteria. a) b) c) d) cation; attracted anion; attracted cation; not attracted anion; not attracted © 2016 Pearson Education, Inc.
Which one of the following is NOT a kind of staining technique? a) b) c) d) simple differential special selective © 2016 Pearson Education, Inc.
Which one of the following is NOT a kind of staining technique? a) b) c) d) simple differential special selective © 2016 Pearson Education, Inc.
The process of fixing a slide attaches the microorganisms while simultaneously a) b) c) d) illuminating the organisms. staining the organisms. killing the organisms. magnifying the organisms. © 2016 Pearson Education, Inc.
The process of fixing a slide attaches the microorganisms while simultaneously a) b) c) d) illuminating the organisms. staining the organisms. killing the organisms. magnifying the organisms. © 2016 Pearson Education, Inc.
Preparing colorless bacteria against a colored background is called a) b) c) d) negative staining. Gram staining. acid-fast staining. endospore staining. © 2016 Pearson Education, Inc.
Preparing colorless bacteria against a colored background is called a) b) c) d) negative staining. Gram staining. acid-fast staining. endospore staining. © 2016 Pearson Education, Inc.
What is the mordant in the Gram stain? a) b) c) d) iodine safranin alcohol-acetone crystal violet © 2016 Pearson Education, Inc.
What is the mordant in the Gram stain? a) b) c) d) iodine safranin alcohol-acetone crystal violet © 2016 Pearson Education, Inc.
Flagella are stained with a) b) c) d) carbolfuchsin. malachite green. methylene blue. crystal violet. © 2016 Pearson Education, Inc.
Flagella are stained with a) b) c) d) carbolfuchsin. malachite green. methylene blue. crystal violet. © 2016 Pearson Education, Inc.
Capsules are stained using a(n) a) b) c) d) negative stain. Gram stain. Schaeffer-Fulton stain. acid-fast stain. © 2016 Pearson Education, Inc.
Capsules are stained using a(n) a) b) c) d) negative stain. Gram stain. Schaeffer-Fulton stain. acid-fast stain. © 2016 Pearson Education, Inc.
Endospores are stained using a(n) a) b) c) d) negative stain. Gram stain. Schaeffer-Fulton stain. acid-fast stain. © 2016 Pearson Education, Inc.
Endospores are stained using a(n) a) b) c) d) negative stain. Gram stain. Schaeffer-Fulton stain. acid-fast stain. © 2016 Pearson Education, Inc.
What color are gram-negative bacteria at the completion of the Gram staining process? a) b) c) d) pink purple colorless brown © 2016 Pearson Education, Inc.
What color are gram-negative bacteria at the completion of the Gram staining process? a) b) c) d) pink purple colorless brown © 2016 Pearson Education, Inc.
The appearance of Mycobacterium leprae after they are stained with an acid-fast stain is a) b) c) d) purple. red. colorless. brown. © 2016 Pearson Education, Inc.
The appearance of Mycobacterium leprae after they are stained with an acid-fast stain is a) b) c) d) purple. red. colorless. brown. © 2016 Pearson Education, Inc.
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