The absorbance of light is measured with a spectrophotometer and the result can be used to estimate the number of cells in a broth culture.

Q: While measuring the turbidity of a bacterial culture in class, Kevin recorded both the absorbance…

A: Turbidity is the measurement of the suspended particles in a fluid that makes it opaque. Quality…

Q: Define agar.

A: A dried jelly-like substance called agar, commonly referred to as agar-agar, is made from the red…

Q: Sanger spectrophotometer Coulter counter plate counts centrifugation direct Petroff-Hauser turbidity…

A: Microbiology is the study of the biology of microscopic organisms - viruses, bacteria, algae, fungi,…

Q: You make a 1:100 dilution of your culture and plated 0.1 ml of this sample on a Nutrient agar plate.…

A: The amount of organisms present in the original culture is called as colony forming unit per…

Q: Draw and label detailed apparatus of the steam distillation apparatus used for the Isolation of…

A: Eugenol is the oil found in cloves. It's boiling point is 248 degree Celsius. It can be isolated at…

Q: As part of an experiment where absorbance values are measured using a spectrophotometer, you are…

A: The bacteria growth uses mitotic cell divisions. The bacterial population grows until the nutrients…

Q: Create a schematic diagram of the experimental procedure down below

A: Chlorophyll is the pigment contained in special membrane-enclosed organelles called "chloroplasts"…

Q: If lysozyme is added to a microbial culture. Predict what will be observed if the culture is…

A: Microorganisms are small organism that cannot be seen by naked eyes. They include bacteria, fungi,…

Q: he image below is the results of the Nutrient agar plate inoculated with the kitchen ounter sample…

A: Colony morphology is used by microbiologists to identify and characterized the different bacterial…

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: Explain why litmus milk is considered a good differential medium.

A: Differential media are the growth medium that helps in differentiating bacterial samples on the…

Q: As shown in this diagram, you perform a ten-fold serial dilution of a culture to determine the…

A: The number of microorganisms that are able to divide and form new colonies is called a…

Q: Use the counting method to estimate the length of an elodea cell. You will need to use your…

A: If the magnification is 400x then the diameter of one single cell would be .04mm  To find the length…

Q: Which specific example of a functional medium would you use to grow microbes from the following…

A: A functional medium refers to a cultured medium that is specifically designed to support the growth,…

Q: You have 0.05 ml of kombucha that contains microbes at a concentration of 8.2 x 10^6 CFU/ml. You…

A: Creating proper dilutions and working out the colony-forming units or CFU/ ml is one integral part…

Q: Would heating the culture in a sealed, small-diameter tube that is totally immersed in a water bath…

A: Microbial culture is a process of multiplication of microbial organisms by allowing them to…

Q: What is differential medium and differential media? Explain the difference ?

A: Difference between differential medumium -   .- A differential medium support the expansion of any…

Q: Three-dimensional images of specimens can be produced using z stacks obtained from confocal…

A: Microscopy is a technique that is used to visualize small-sized objects that are not used to the…

Q: A microbiologist has isolated a new strain of bacteria, and is trying to characterize aspects of its…

A: Psychrophilic bacteria are cold loving bacteria that grows and reproduce at lower temperatures…

Q: Compare and contrast use dilution and disk diffusion methods of evaluating disinfectants. Please…

A: Chemical disinfectants are gathered by the sorts of organisms and infectious agents they are…

Q: You perform a serial dilution of a water sample and the 10-7 tube when 0.1 ml was plated onto the…

A: Estimation of the number of viable cells is important in microbiology protocols. It is estimated…

Q: Discuss the advantages of the gram stain procedure in microbiology

A: Gram staining is a technique used in microbiology which involves the use of dye that differentiate…

Q: Compare and contrast liquid, solid, and semisolid media, givingexamples.

A: liquid media happens to contain all the growth requirements and ingredients suspend in water without…

Q: Your lab partner is observing a Gram-stained slide of their unknown organism with 1000X total…

A: In high magnification (1000X) the oil emulsion is used. It is used when we use 100X objective lens…

Q: The acid fast technique is also known as:  A. Ziehl-Neelsen stain B. Auramine-rhodamine stain C.…

A: Acid fast bacteria are gram positive bacteria . They are unique among prokaryotes and normal gram…

Q: what effect would failing to drain the smear in-between staining have on your judgment of the gram…

A: Gram staining is a technique used to differentiate between two groups of bacteria namely…

Q: Explain why dichloromethane is a good solvent to remove the fat from the milk? Can you use organic…

A: Dichloromethane is a good option for milk fat removal. The reason is: Dichloromethane is a polar and…