BIOL 2051
Louisiana State University
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LSU BIOL 2051 Lab midterm Questions and Answers.
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---11april 20262025/2026A+
- Culture medium - Answer microorganisms can be grown in them; composed of digests of chemically undefined substances such as yeast and meat extracts 
 
Defined medium - Answer precise chemical composition is known 
 
Broth - Answer liquid culture medium 
 
Solid medium - Answer culture medium containing a solidifying agent, usually agar 
 
Plates - Answer solid media in Petri dishes 
 
Deeps - Answer test tubes containing solid medium, usually used for anaerobi...
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Brininstool Exam 4 BIOL 2051 Test Questions And 100% Correct Answers 2025-2026 Updated.
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---11april 20262025/2026A+
- Growth - Answer Increase in the number of cells 
 
Binary Fission - Answer Example of Intercalary Growth in prokaryotes 
 
Examples of Polar Growth in Prokaryotes - Answer Simple Budding 
Budding by hyphae 
Cell division in stalked bacteria 
Polar growth without differentiation of cell size 
 
DNA replication 
Formation of DIvisome 
Cell elongation - Answer Steps for cell division 
 
1 - Answer How many origins of replication for bacteria 
 
1,2,or3 - Answer ...
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Biology 2051 Brininstool Fall 2022 Lab Final Exam and All Correct Answers.
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---17april 20262025/2026A+
- 1) Lactobacillus and Streptococcus 
2) Sacchromyces - Answer 1) two genus that produce lactic acid 
2) genus that produces CO2 and alcohol 
 
False. GROWTH DOES NOT MEAN SURVIVAL - Answer Growth means survival (T/F) 
 
Growth - Answer The organism remains under subjected treatment conditions long enough to grow and divide. 
 
Survival - Answer The organism is exposed to the treatment for a limited time but not enough for division to occur, then removed to be assayed for s...
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BIOL 2051 Lab Quizzes and All Complete Answers 2025-2026 Updated.
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---8april 20262025/2026A+
- Lauryl sulfate lactose broth, Brilliant green lactose bile broth - Answer Which of the following media is/are used in the series of tests for the most probable number (MPN) technique? 
a. Lauryl sulfate lactose broth 
b. Brilliant green lactose bile broth 
c. phenyl ethyl alcohol agar 
d. trypticase soy agar 
 
100x - Answer What is the highest magnification of the objective you will use to view your smear? 
Select one: 
a. 2x 
b. 5x 
c. 10x 
d. 40x 
e. 100x 
 
0.2 microns - Answer...
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BIOL 2051 Lab Final Questions and All Actual Answers 2025-2026 Updated.
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---12april 20262025/2026A+
- What is the reagent that serves as the substrate in the catalase test? - Answer hydrogen peroxide 
 
what type of metabolism is associated with catalase production? - Answer aerobic respiration 
 
for what product is one testing when using the catalase test? - Answer cytochrome c oxidase 
 
would you expect aerobes to produce catalase? - Answer No, catalase enzymes are made by organisms that produce energy using aerobic respiration 
 
describe the appearance of a positive...
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BIOL 2051 EXAM 3 (Brininstool) Final Test Questions And 100% Correct Answers.
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---11april 20262025/2026A+
- Distinguish between macronutrients and micronutrients. - Answer macro-elements needed in large amounts 
micro-elements needed in small amounts 
 
List all 10 macronutrients - Answer carbon 
hydrogen 
oxygen 
nitrogen 
potassium 
calcium 
magnesium 
phosphorous 
sulfur 
sodium 
 
Give some examples of micronutrients - Answer boron, iron, and cobalt 
 
How do growth factors differ from macronutrients and micronutrients? - Answer growth factors are organic micronutrients tha...
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BIOL 2051 Exam 3 Final Test Questions and Already Passed Solutions.
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---21april 20262025/2026A+
- Rabies disease is a ____ (pick only one answer) 
 
A. Slowly progressing zoonotic viral disease, with main reservoir being wild animals, such as skunks, raccoons 
B. No treatment for rabies is currently available 
C. Caused by an anaerobic endospore forming rod shaped bacterium, and a fecal oral transmission route 
D. Fast-progressing, first symptoms in 1 hr after exposure, death within 3 days 
E. Airborne transmission (via inhalation of spores) - Answer A 
 
What is NOT a diseased caused ...
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BIOL 2051 Brininstool Exam 1 And 2 Study Guide Questions with Actual Detailed Answers.
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---19april 20262025/2026A+
- Define microbiology - Answer The study of cellular and noncellular organisms too small to be seen with the naked eye 
 
What are microorganisms? - Answer a microscopic organism consisting of a single cell or cell cluster or a virus 
 
Where do you find microorganisms? - Answer everywhere lol 
 
How many microorganisms are estimated to be on Earth? - Answer 25X10^29 
 
How long have microorganisms been on Earth? - Answer 4 billion years 
 
How do microorganisms impac...
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LSU BIOL 2051 FINAL EXAM 1 QUESTIONS AND ALL CORRECT ANSWERS.
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---29april 20262025/2026A+
- B - Answer Microbiology is the study of ________. 
A) small organic molecules 
B) all cellular and noncellular organisms too small to be seen with the naked eye 
C) small eukaryotic cells and the evolution of eukaryotic cells 
D) only A and B are correct 
E) all three are correct 
 
D - Answer Which of the following is not a characteristic of cells? 
A) they interact with the environment 
B) they communicate with each other 
C) they can move 
D) can function independently of one anot...
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LSU BIOL 2051 Exam #1 – Bhattacharyya Final Test Questions with Guaranteed Pass Solutions 2026.
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---32april 20262025/2026A+
- what are Koch's Postulates? - Answer 1. the microorganisms must be present in every case of the disease but absent from healthy individuals 
2. the suspected microorganisms must be isolated and grown in pure culture 
3. the same disease must result when the isolated microorganism is inoculated in a healthy host 
4. the same microorganism must be isolated again from the diseased host 
 
why was the discovery of phagocytic cells in the blood important? - Answer foundational discover...
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