- Study guides, Class notes & Summaries

Bio117 Nutrition Exam 1 - Old exam questions for practice from Spring 2022- with answer key.

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5 pages

Written in 2021/2022

Grade A+

Malahi

BIOL 3201 Midterm (Auburn) Exam With Complete Solutions...

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5 pages

Written in 2025/2026

Grade A+

Zayla

Bacteriophage - Answer Viruses that infect bacterial cells Bacteriophages are... - Answer Obligate intracellular parasites What do bacteriophages require? - Answer A host Why do bacteriophages require hosts? - Answer They lack specific requirements for replication and reproduction - use host cell machinery What phages infect E. coli B? - Answer T2 and T4 What phage infects E. coli K12? - Answer T4 Why is phage typing important? - Answer Can help determine i...

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5 pages

Written in 2026/2027

Grade A+

TestSolver9

where are gloves disposed? - Answer biohazard can where should slides/swabs be disposed? - Answer sharps container where are tubes disposed? - Answer discard cart where are plates disposed? - Answer biohazard can Biosafety Level 1 (BSL-1) - Answer microorganisms not known to cause disease in healthy adults PPE (personal protective equipment) is NOT required for this BSL - Answer BSL 1 Biosafety level 2 - Answer indigenous microorganisms that can lead to dis...

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13 pages

Written in 2026/2027

Grade A+

TestSolver9

standard plate count (SPC) - Answer one of the most common methods for determining the numbers of viable (live) bacteria in a sample. spread plate technique - Answer used with serial dilutions, is one of the common standard plate count methods. colony forming units (CFUs) - Answer Only numbers between 30 and 300 CFUs are considered statistically valid. Liquid sample counts - Answer based on a 1 mL (milliliter) volume dry sample counts - Answer based on 1 g (gram) mass ...

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2 pages

Written in 2026/2027

Grade A+

TestSolver9

selective medium - Answer a culture medium with an ingredient that inhibits the growth of microbes other than the one being sought NaCl and Mannitol salt agar selects for the genus - Answer Staphylococcus aureus differential medium - Answer a solid culture medium that makes it easier to distinguish colonies of the desired organism the presence of ________ is one way to differentiate aerotolerant bacteria from aerobes or facultative anaerobes - Answer catalase Bile Esculin...

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2 pages

Written in 2026/2027

Grade A+

TestSolver9

Methyl Red (MR) tests for what things? - Answer lactic, acetic, succinic, and formic acids produced by various G- genera Methyl Red lowers the pH to ____ or _____. - Answer 5.0 or less. Methyl Red Ph indicator turns what if acid is present? - Answer red If the Methyl Red indicator turns red it is positive for what ability? - Answer the ability to produce and maintain stable acid end products from glucose fermentation Voges-Proskaur (VP) tests for what? - Answer butandi...

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15 pages

Written in 2026/2027

Grade A+

TestSolver9

these 3 things are personal protection equipment (PPE) requirements - Answer wear closed toed shoes, gloves and lab coat while in the lab what disinfectant is used in the lab? - Answer lysol where are items disposed of that have been in contact with bacteria? (ex: petri plates, gloves etc.) - Answer biohazard can where are slides, swabs and pipettes disposed of? - Answer sharps container where does glassware (flasks, beakers, bottles and test tubes) go after use? - Answer...

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10 pages

Written in 2026/2027

Grade A+

TestSolver9

Selective medium - Answer media that will allow only certain microorganisms to grow and will inhibit the growth of other microorganisms what is mixed in to media to create selective conditions - Answer antibiotics, antifungals, inhibitory compounds the incorporation of _____ _____ into mannitol salt agar (MSA) selects for Staphylococcus but inhibits the growth of bacteria that cannot tolerate the salt concentration - Answer sodium chloride differential medium - Answer contai...

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5 pages

Written in 2026/2027

Grade A+

TestSolver9

Gloves to be disposed of where? - Answer biohazard can Slides/swabs to be disposed of where? - Answer sharps container Tubes to be disposed of where? - Answer discard cart Plates to be disposed of where? - Answer biohazard can BSL 1 - Answer microorganisms not known to cause disease in healthy adults BSL 2 - Answer indigenous microorganisms that can lead to diseases of varying severity in healthy adults BSL 3 - Answer indigenous or exotic microorganisms tha...

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6 pages

Written in 2026/2027

Grade A+

TestSolver9

false - Answer Microorganisms are normally found in a person's cerebrospinal fluid. (true or false) true - Answer Microbes are in the water we drink. aseptic technique - Answer Taking precautions to prevent the contamination of others, yourself, your surroundings, and your lab supplies is known as... flaming them - Answer Loops and needles are sterilized by... microorganisms are everywhere - Answer "Ubiquity of microorganisms" means... discard cart - Answer...

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5 pages

Written in 2026/2027

Grade A+

TestSolver9

What range of temperature can microorganisms grow in? - Answer 0-100°C What are the four categories that microorganisms are split into? - Answer Psychrophiles, mesophiles, thermophiles, and hyperthermophiles Psychrophile optimal temperature - Answer -5-20°C Where are psychrophiles found? - Answer In icy waters of the Arctic and Antarctic Mesophile optimal temperature - Answer 20-50°C What category do most microbes fall into? - Answer Mesophiles Thermophile ...

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9 pages

Written in 2026/2027

Grade A+

TestSolver9

Selective Media - Answer medium that allows only certain microorganisms to grow and inhibit the growth of other microorganisms Differential Media - Answer medium that contains substances that cause some bacteria to take on an appearance that distinguishes them from other bacteria EMB - Answer Eosin Methylene Blue selective and differential How is EMB selective? - Answer dyes eosin and methylene blue no not affect the growth of gram negative bacteria but inhibit the growth...

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2 pages

Written in 2026/2027

Grade A+

TestSolver9

BSL 1 - Answer microorganism not known to cause disease in healthy adults -standard microbiological practices followed -personal protective equipment not required -sink available for hand washing BSL 2 - Answer Indigenous microorganisms that can lead to diseases of varying severity in healthy adults. -contaminated waste is autoclaved -PPE must be worn BSL 3 - Answer Indigenous or exotic microorganisms that cause serious or potentially lethal disease through respiratory tran...

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11 pages

Written in 2026/2027

Grade A+

TestSolver9

gamma or non-hemolytic - Answer no hemolysis or discoloration of the media alpha - Answer incomplete hemolysis or greening of the media beta - Answer complete hemolysis or clearing of the media KOH test - Answer confirms Gram stain based on whether 3% KOH can lyse bacterial cell wall and release DNA positive - Answer KOH test: strings present, indicating a gram negative organism negative - Answer KOH test: strings absent, indicating a gram positive organism MS...

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11 pages

Written in 2026/2027

Grade A+

TestSolver9

brightfield microscope - Answer - simplest form of microscopy where light is either passed through, or reflected off, a specimen. Illumination is not altered by devices that change the properties of light (such as polarizers or filters). Requires the use of stains to visualize cells. phase contrast microscope - Answer - converts the differences in optical density (refractive index) of cells into different shades of brightness (contrast). Allows for the visualization of morphology, exter...

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11 pages

Written in 2026/2027

Grade A+

TestSolver9

You should wash your hands when.... - Answer entering and before leaving the lab What is disposed of in the biohazard can? - Answer petri plates what type of paper is used to clean your microscope? - Answer lens paper simplest form of microscopy where light is either passed through or reflected off of a specimen - Answer brightfield microscopy lab coats can be worn outside the lab - Answer false open toe shoes are acceptable lab footwear - Answer false loops a...

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14 pages

Written in 2026/2027

Grade A+

TestSolver9

algae - Answer photoautotrophs that produce biomass through photosynthesis mixotrophic - Answer what are protist algae? an example would be single-celled Euglena passive transport - Answer transport across a membrane that requires no energy; simple and facilitated diffusion active transport - Answer transport across a membrane that requires energy; coupled transport with ABC transporters facilitated diffusion - Answer helps solutes move across a membrane from a region ...

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17 pages

Written in 2026/2027

Grade A+

TestSolver9

Staphylococcus aureus test results - Answer MSA: growth+/acid+ coagulase: + (some) Streptococcus, Enterococcus test results - Answer SBA: beta bile esculin: + Enterobacter, Serratia, (some) Erwinia, Aeromonas test results - Answer butanediol fermentation (VP test +) Enterobacter aerogenes, Salmonella typhimuirium test results - Answer citrate utilization: + Pseudomonas test results - Answer oxidase: + Paracoccus, Pseudomonas, Bacillus, E. coli ...

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14 pages

Written in 2026/2027

Grade A+

TestSolver9

microbes are... - Answer life forms small diverse everywhere thiomargarita magnifica - Answer supersized microbial cell tooth plaque - Answer microbial community (biofilm) virus - Answer non-living act like microbes pathogen robert hooke - Answer coined the term "cell" built compound microscope published micrographia Anton van Leeuwenhoek - Answer coined the term "animalcules" single lens magnifier light microscope observed single micro...

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24 pages

Written in 2026/2027

Grade A+

TestSolver9

BIOL 3201 Final Exam Questions With Accurate Answers...

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10 pages

Written in 2025/2026

Grade A+

Zayla