Q: Which of the following equations best represents the conversion of glucose to ethanol and carbon dioxide during fermentation by yeast?

$$\text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 2\text{CO}_2 + 2\text{C}_2\text{H}_5\text{OH}$$

Question 1

Which scientist is credited with making careful observations of microscopic organisms and is considered the 'father of microbiology' due to his use of simple microscopes?

Accepted Answer

Antoni van Leeuwenhoek

Question 2

Which of the following is a distinguishing feature of fungi compared to bacteria?

Accepted Answer

Fungi are eukaryotic and obtain food from other organisms

Question 3

In the scientific method, what is the correct sequence of steps?

Accepted Answer

Observation → Question → Hypothesis → Experiment → Results

Question 4

Pasteur’s 'swan-necked flask' experiment disproved which theory?

Accepted Answer

Spontaneous generation

Question 5

Which structure is used by protozoa for locomotion and is described as numerous, short protrusions?

Accepted Answer

Cilia

Question 6

Which scientist developed the taxonomic system for naming and grouping organisms?

Accepted Answer

Carolus Linnaeus

Question 7

What is the main difference between bacteria and archaea?

Accepted Answer

Bacteria have cell walls made of peptidoglycan, while archaea have cell walls made of other polymers

Question 8

Which of the following is NOT a step in Koch’s postulates?

Accepted Answer

Agent must be destroyed in the host to cure the disease

Question 9

Which process is used by bacteria, fungi, and algae to detoxify polluted environments?

Accepted Answer

Bioremediation

Question 10

Which of the following equations best represents the conversion of glucose to ethanol and carbon dioxide during fermentation by yeast?

Accepted Answer

$$	ext{C}_6	ext{H}_{12}	ext{O}_6 ightarrow 2	ext{CO}_2 + 2	ext{C}_2	ext{H}_5	ext{OH}$$

Question 11

Which scientist’s work led to the discovery of enzymes and the beginning of biochemistry?

Accepted Answer

Eduard Buchner

Question 12

Which of the following is a real-world application of microbial genetics?

Accepted Answer

Production of human blood-clotting factor by E. coli

Question 13

Which scientist is associated with the development of antiseptic techniques using phenol?

Accepted Answer

Joseph Lister

Question 14

Which of the following statements about viruses is correct?

Accepted Answer

Viruses are acellular and require a host cell to reproduce

Question 15

Which of the following is a correct example of bioremediation?

Accepted Answer

Using bacteria to clean up oil spills

Question 16

Which scientist is credited with the discovery of penicillin, the first antibiotic?

Accepted Answer

Alexander Fleming

Question 17

Which of the following best describes the role of microorganisms in the nitrogen cycle?

Accepted Answer

Microorganisms convert nitrogen gas into usable forms for plants

Question 18

Which of the following is NOT a characteristic of molds?

Accepted Answer

Molds reproduce by budding

Question 19

Which of the following is a plausible reason Needham’s experiments failed to disprove spontaneous generation?

Accepted Answer

He failed to heat vials sufficiently to kill all microbes or did not seal vials tightly enough

Question 20

Which of the following is a correct application of Koch’s postulates in a modern medical scenario?

Accepted Answer

Isolating a suspected pathogen from a patient, growing it in pure culture, and introducing it into a healthy animal to observe disease symptoms

Introduction to Medical Microbiology: History, Classification, and Key Discoveries

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