You are doing research on a bacterial species, trying to determine the shape, distribution, and arrangement of a number of filamentous structures that protrude from the cell surface. Which type of microscopy would best enable you to do this?
A. bright-field microscopy
B. scanning electron microscopy
C. dark-field microscopy
D. transmission electron microscopy
Answer: B
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When muscle cells are stimulated at such rapid rates that there is no relaxation between contractions, a greater force is produced. This property of muscle contraction is called:
A. hyperpolarization. B. summation C. tetanus D. agonist
Microbial ________ are scientists who investigate the synthesis of antibiotics and toxins, the production of energy with microorganisms, and the ways in which microorganisms survive harsh environmental conditions.
Fill in the blank(s) with the appropriate word(s).
Which of the following bacterial cell structures plays an important role in the creation of biofilms?
A) glycocalyces B) flagella C) fimbriae D) pili E) both fimbriae and glycocalyces
At the end of the cell cycle there are
two identical daughter cells one cell four identical daughter cells two daughter cells, but they are not identical one half of a cell