Bio 250 Study guides, Class notes & Summaries

BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023) Straighterline. An irregular cluster of spherical cells would be called a/an a. Palisades b. Sarcina c. Staphylococcus d. Streptococcus e. Spirilla 2. The study of the immune response to infection caused by microorganisms is a. Hypersensitivity b. Epidemiology c. Immunology d. Morbidity e. Geomicrobiology 3. What is the maximum number of electrons in the first energy shell of an atom? a. 2 b. 4 c. 8 d. 18 e...

BIO 250 Final Exam (Microbiology) | 60 Questions With 100% Correct Answers | Latest Update | Graded A+. What microbial process was responsible for changing Earth’s atmosphere from one without oxygen to one with oxygen? Select one: a. anaerobic respiration b. decomposition c. oxygenic photosynthesis d. temperature regulation In the nitrogen cycle, which of the following phases involves the release of nitrogen as into the Earth’s atmosphere? Select one: a. ammonication b. denitrica...

1-What microbial process was responsible for changing Earth’s atmosphere from one without oxygen to one with oxygen? Select one: a. anaerobic respiration b. decomposition c. oxygenic photosynthesis d. temperature regulation 2-In the nitrogen cycle, which of the following phases involves the release of nitrogen as into the Earth’s atmosphere? Select one: a. ammonification b. denitrification c. nitrification d. nitrogen fixation 3-Farmers commonly inoculate legume crops with Rhi...

BIO 250 Final Exam (Microbiology) | Questions With 100% Correct Answers | Latest

Microbiology Midterm Exam This document is meant to be a pre-emptive study tool only. It is comprised of 5 past midterm exams. Questions on current exams are likely different. Use this BEFORE (of course not during!) the exam to study practice questions that may be similar or cover topics on the new exams, and to understand the depth of material covered so you can study better and be more prepared! 1. An irregular cluster of spherical cells would be called a/an a. Palisades b. Sarcina c....

1. Proper aseptic technique is crucial to ensuring growth of pure bacterial colonies. What is one experimental way you can test your practices to confirm that you are using proper aseptic technique?This could be done by having a control agar plate where sterile loop was used to streak the agar. If it grows bacterial colonies after some time, then aseptic technique was not successful. 2. In a laboratory setting, what are three ways you can properly sterilize culturing equipment? a. Dry hea...

“Pre-Lab Questions” 1. Escherichia coli is one of the most common causes of foodborne illness, yet it is also a common microorganism found within the human gut. What explains this disparity? This is due to the fact that some E Coli have components that are thought to have an alien structure. Infection is primarily brought on by this. 2. There are several foods and beverages listed in this lab that are created through the actions of microorganisms. Name five of the foods and the specifi...

BIO 250 Microbiology Quiz Assignments 1-4 Questions from Quiz Assignments 1-4 (3 of these sets are all quiz 1) Question 1 All of the following are reasons why some scientists believe that the term “prokaryote” is a somewhat artificial designation and should be discarded except Select one: a. Some bacteria have internal membranous structures. b. Some bacteria have their genetic material enclosed within a membrane.