Q: Which of the following is true about biofilms? Most bacteria naturally live in biofilms Bacteria in…
A: According to our guidelines we are allowed to answer a single question at a time. So, if you want…
Q: ons are affected by certain factors. Which of the following is/are not affect to fixation. pH and…
A: Fixation is the preservative mechanism in which tissue is fixed to prevent protein degradation. It…
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A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…
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A: The pellicle refers to a membrane that is formed due to the floating of the nonmotile bacteria. The…
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A: Filamentous bulking refers to the uncontrolled growth of filamentous bacteria. Primary treatment…
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A: Introduction: An environment is considered as anaerobic when no free oxygen is available but present…
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A: The outer loose layer surrounding Earth is known as soil. Soil is a mixture of different compounds.…
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A: The gram-positive bacteria retain the crystal violet colour and stains purple whereas the…
Q: What instrument is used to check the turbidity for a test tube? O Scale Desiccator Photospectrometer…
A: Question- What instrument is used to check the turbidity for a test tube? Scale Desiccator…
Q: Porins allow for the transport of material (e.g. nutrients) through the of Gram cell wall
A: Porins are present on the bacterial cell wall.
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A: Bacteria, archaea species, fungi, and certain protists are among the aerobic and anaerobic microbial…
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A: Fibres are the dead , robust , rigid elongated strand and is a kind of sclerenchymatous tissue . It…
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A: There are many kinds of microbes that live in a variety of environment like salt, under high…
Q: What role do biofilms play in trickling filters?
A: Wastewater treatment is an interaction used to eliminate impurities from wastewater or sewage and…
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A: A slide with a coverslip. -It is known as dry mounting. In this method a specimen is kept on the…
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A: Bacteria are a type of biological cell which belongs to the prokaryotic domain. Bacteria are the…
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A: Tonicity ability of a solution to change the volume of a cell by moving water molecules through a…
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A: Ans: The bacterial communication via chemical signalling is referred to as quorum sensing.
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A: Since you have posted a question with multiple sub=parts, we will solve first three sub-parts for…
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A: A culture medium or growth medium is may be liquid, solid, or semi-solid designed to promote growth…
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A: Bacteria are microscopic, unicellular, prokaryotic organisms found in diverse environments. They can…
Q: Agar is superior to gelatin as a solidifying agent because agar a. does not melt at room temperature…
A: Agar is used as a medium for culturing in laboratories.
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A: Membrane filter are made up of cellulose.
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A: Tonicity is the concentration of a solution as compared to another solution .Concentration describes…
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A: Slightly acidic to neutral
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A: Recrystallization: It is a technique performed in the laboratory to purify solids based on their…
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A: Bacteria can be defined as microscopic, single-celled organisms that live in diverse environments.…
Q: Which of the following occurs when a biofilm (or a part of it) begins to starve or experiences…
A: Biofilms These are defined as the collection of one or more types of microorganisms which can grow…
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A: Ans- agricultural runoff
Q: microbial motility.
A: Motility test is used to determine if organisms are motile or not. It is the ability of an organism…
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A: Dicot and monocot are major classifications of flowering plants. Dicot or dicotyledon are those…
Q: An animal cell placed in a hypertonic solution would: lyse/burst become turgid become flaccid…
A: A hypertonic solution is that solution which has a higher concentration of solutes.A process called…
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A: Organic Solvents like acetone, ethanol are used to rinse the glassware. Curved glassware's…
Q: Hand washing experiment using nutrient agar.
A: Nutrient agar is a special food used to grow bacteria in the laboratory. It contains everything…
Q: Need help Which of these could be used to measure the number of live bacterial cells in a liquid…
A: Bacterial cultures are used to grow the bacteria in a specific environment. A bacterial culture…
Q: Bacteria can grow in thelaboratory as a suspension in liquid _________
A: It is an environment which supplies necessary nutrients for the growth of microorganisms. Nutrient…
Q: Which of the following equipments is used for plant cell or tissue culture? Lütfen birini seçin: O…
A: Tissue culture is the technique of growing a cell Or tissue outside , in an artificial medium.
Q: Explain how microbial agents A through D in the following diagram compare in effectiveness against…
A: It is used to determine the susceptibility of a given test organism (clinical) against a range of…
Q: Derailed description of the following test / media SIM medium
A: SIM stands for Sulfide, Iodide, Motility medium. It is a semi-solid medium that is used to check the…
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A: INTRODUCTION The scientific method have six steps very briefly explained below.
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A: Laboratory tests to detect antibodies and antigens outside of the body (e.g., in a test tube) are…
Q: How to make a bacterial cell competent
A: Bacterial cells can be made competent either naturally or artificially. Competent cells are cells…
Q: Scientists have discovered a new strain of bacteria but do not know its morphology. They have also…
A: Bacteria, grouped under prokaryotes are single celled microorganism which contains DNA and lacks…
Q: What is the word used to describe microbes which have simple enzyme systems and which require growth…
A: fastidious
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A: Plant tissue culture is very helpful technique in which plants are grown in in vitro condition and…
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- Peripheral membrane proteins A. can be extracted by chelating agents. B. completely span the membrane. C. are firmly associated with the membrane. D. can be removed only with detergents.scenario: After preparing Vitamin E gel-cream, observed that the finished product texture is gritty and less viscous similar to the picture given below. question: 1.Briefly explain the possible causes and remedies to solve the encountered formulation problems.Interpret the ff orders: Myllanta 10 ml p.o. p.c. at bedtime___________________________________ Attropine sulphate ophthalmic 1% 2 gtt o.d. q.15 min x 4 ____________________
- Time point (min) Absorbance of culture at 660nm Approximate cell concentration Approximate # cells in 1mL extract 0 0.298 1.49 x 108 cells/mL 1.49 x 108 cells 10 0.316 1.58 x 108 cells/mL 1.58 x 108 cells 20 0.374 1.87 x 108 cells/mL 1.87 x 108 cells 30 0.429 2.145 x 108 cells/mL 2.145 x 108 cells 40 0.512 2.56 x 108 cells/mL 2.56 x 108 cells 50 0.544 2.72 x 108 cells/mL 2.72 x 108 cells 60 0.607 3.035 x 108 cells/mL 3.035 x 108 cells a. Using these data, prepare a growth curve of this strain ofEscherichia coli (E. coli).b. Estimate the doubling time for this strain of E. Coli. Clearly showhow you estimated this value from the empirical data presented.(2) how are aseptic technique similar and different in the lab and Healthcare field?Be specific and explain at least 2 differences and two similarities. (3) You are asked to develop a method of transfer an unknown organism from a liquid broth to a solid petri dish.list each step that you would have to take .be specificPLEASE ANS ASAP 1. When placed into a hypertonic solution, a bacterial cell will: a:die as a result of dessication. b: lyse c: swell d. take in more water than it releases . 2. Which one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? a. Gradient diffusion method b. Agar macrodilution method c. Broth microdilution method d. Disk diffusion method 3. Blood for culture is usually obtained from a vein located in which area? a. Brachial b. Femoral c. Axillary d. Antecubital 4. All clinical specimens submitted to the clinical microbiology laboratory must be: a. all of these b. property and carefully collected. c. properly labeled. d. properly transported to the laboratory 5. Contact precautions are required for patients with a. all of these b. respiratory syncytial virus c. Clostridium difficile c. associated diseases. d. infections caused by multidrug-resistant…
- PLEASE ANS ASAP 1. When placed into a hypertonic solution, a bacterial cell will: a:die as a result of dessication. b: lyse c: swell d. take in more water than it releases . 2. Which one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? a. Gradient diffusion method b. Agar macrodilution method c. Broth microdilution method d. Disk diffusion method 3. Blood for culture is usually obtained from a vein located in which area? a. Brachial b. Femoral c. Axillary d. Antecubital 4. All clinical specimens submitted to the clinical microbiology laboratory must be: a. all of these b. property and carefully collected. c. properly labeled. d. properly transported to the laboratory 5. Contact precautions are required for patients with a. all of these b. respiratory syncytial virus c. Clostridium difficile c. associated diseases. d. infections caused by multidrug-resistant…EGG OSMOSIS (LABORATORY EXPERIMENTATION) MATERIALS: 3 glasses 3 small eggs (Quail eggs, if available) vinegar Sugar solution (1 teaspoon of sugar in 100mL of water) Salt solution (1 teaspoon of salt in 100mL of water) Distilled water (Wilkins or H2Zero) PROCEDURES: Removing of Egg Shell Carefully pour vinegar in a glass Submerge the eggs in the vinegar, make sure the eggs are cover to the surface. Soak the eggs for 24 hours. The vinegar will remove the eggs’ shells. The acetic acid in the vinegar reacts with the calcium carbonate in the shell. 2. After 24 hrs Slowly pour out the vinegar leaving a revealed membrane of the eggs. Wash the egg slowly. Measure the egg, using a tape measure. Find the circumference of the egg 3. Soaking in 3 different medium Soak the 3 eggs to different medium. 1 glass contains salt solution (label A) 1 glass contains sugar solution (label B) 1 Glass contains distilled water (label C) Leave it for 24 hours 4. After Soaking…EGG OSMOSIS (LABORATORY EXPERIMENTATION) MATERIALS: 3 glasses 3 small eggs (Quail eggs, if available) vinegar Sugar solution (1 teaspoon of sugar in 100mL of water) Salt solution (1 teaspoon of salt in 100mL of water) Distilled water (Wilkins or H2Zero) PROCEDURES: Removing of Egg Shell Carefully pour vinegar in a glass Submerge the eggs in the vinegar, make sure the eggs are cover to the surface. Soak the eggs for 24 hours. The vinegar will remove the eggs’ shells. The acetic acid in the vinegar reacts with the calcium carbonate in the shell. 2. After 24 hrs Slowly pour out the vinegar leaving a revealed membrane of the eggs. Wash the egg slowly. Measure the egg, using a tape measure. Find the circumference of the egg 3. Soaking in 3 different medium Soak the 3 eggs to different medium. 1 glass contains salt solution (label A) 1 glass contains sugar solution (label B) 1 Glass contains distilled water (label C) Leave it for 24 hours 4. After Soaking…
- 5. Give two reasons for why heat fixing is used? Adherence of bacterial cells to the slide Denaturing of bacterial enzymes to preserve cellular integritysalt and sugar are used as preservatives for meat, fruits (as in preserve mango and strawberry jam) and vegetables (as in preserve radish). Explain the practice based on osmosis. plssss help me answer this, thank you.Explain this approach: matrix-assisted laser desorption ionization (MALDI) ?