Microbiology

Microbiology Study Guide

6. Which microorganism is added to bread dough so that it rises and creates the soft texture of bread? a. Protozoa b. Fungus c. Yeast d. Parasite 7. The sour taste is due to the presence of which of the following acids? a. 8. Which is not a method used for preservation of food? a. Air pressure b. Heat c. Low temperatures d. Drying 9. Which microorganism is responsible for acid spoilage, in which the carbohydrates are broken to produce detectable amounts of acid? a. Lactobacilli b. Saccharomyces cerevisiae c. Propionibacterium d. Penicillium roqueforti 10. Which microorganism helps produce vitamin B12? a. Yeast b. Protozoa c. Fungus Bacteria Answer Keys found on page 131 Lactic acid b. Acetic acid c. Butyric acid d. All of the above

©2018

Achieve

Page 104

of 132