Microbiology Quiz 3 Exam Questions with 100% Correct Answers | Verified | Updated

Microbiology Quiz 3 Exam Questions with 100% Correct Answers | Verified | Updated Which of the following is not a difference between endospores and vegetative cells? A) Vegetative cells are metabolically active, whereas endospores are dormant. B) Vegetative cells are more resilient due to their metabolic activities, whereas endospores are more sensitive to change. C) Vegetative cells normally have enzyme activity, whereas endospores do not show enzymatic activity. D) Vegetative cells stain easily using normal staining protocols, whereas endospores are difficult to stain without special endospore stains. - answerB) Vegetative cells are more resilient due to their metabolic activities, whereas endospores are more sensitive to change. Which of the following gives the correct order of the stages of sporulation? A) Cortex formation, formation of a double layer of membrane, DNA replication, spore release B) DNA replication, formation of a double layer of membrane, cortex formation, spore release C) DNA replication, spore release, cortex formation, formation of a double layer of membrane D) Formation of a double layer of membrane, DNA replication, spore release, cortex formation - answerB) DNA replication, formation of a double layer of membrane, cortex formation, spore release Sporulation generally occurs under which of the following circumstances? A) when conditions are unfavorable or there are insufficient nutrients B) when microbes are exposed to a new, favorable environment C) when microbes are under little stress and can become dormant D) when resources become highly abundant - answerA) when conditions are unfavorable or there are insufficient nutrients Which of the following individuals did not contribute to the establishment of cell theory? A) Girolamo Fracastoro B) Matthias Schleiden C) Robert Remak D) Robert Hooke - answerA) Girolamo Fracastoro Which of the following are not types of inclusions in bacterial cells? A) carboxysomes B) magnetosomes C) thylakoids D) volutin granules - answerC) thylakoids Which scientist performed an elegant series of experiments that finally and definitively disproved the theory of spontaneous generation? A) John Needham B) Louis Pasteur C) Francesco Redi D) Jan Baptista van Helmont - answerB) Louis Past