Specifically explain how UV light kills bacteria.

Q: Is it possible to perform double or triple staining using fluorescent dyes? Explain

A: For both membrane and soluble proteins, fluorescent dyes are increasingly being utilized to monitor…

Q: What is the most damaging wavelength of this light? What type of damage does it cause cells? How…

A: Sterilization is a technique of complete eradication and killing  of microbes like bacteria ,…

Q: Explain this statement as completely as possible (in detail): Bacteria grow.

A: microorganisms that can only be seen with specialised equipment (a microscope). Bacteria can be…

Q: 1)You can see something at 10x but not at 40x or 100x, what do you do? 2)Your microscope has light,…

A: Using a microscope, a scientist can examine specimens or things that are too small to be seen by the…

Q: The benefits of the negative stain include:  Mark all that apply:   1. No shrinkage or distortion…

A: The negative stain is a process that uses an acidic stain to identify cells from a medium. In…

Q: List other fluorescent stains. What is the usefulness of each?

A: Fluorescent stains/dyes are non-protein molecules that are employed in visualizing samples under a…

Q: What is the best wavelength to study light scattering with bacteria?     260 nm     260-280 nm…

A: 260-280 nm The best wavelength to study light scattering with bacteria depends on the specific…

Q: of.

A: All the above pictures are for the isolation of coliforms and intestinal bacteria. MacConkey agar…

Q: What is the biological benefit(s) to the organism to have detachment induced cell death?

A: Anoikis is the programmed cell death that occurs in cells that detach from the surrounding…

Q: Examples of ionizing radiation that are able to damage DNA and kill bacteria are Microwaves and…

A: Bacteria Or microbial pathogens can be killed by gamma ray, Ultraviolet rays, Radiowaves of…

Q: Explain the usage of photoactivated localization microscopy technique.

A: Photoactivated localization microscopy abbreviated as PALM is a microscopy technique that was…

Q: Describe why Gram negative bacteria stain pink.

A: Gram staining is the differential staining technique performed to differentiate the bacterial…

Q: Describe the shape and color of the following species of bacteria after Acid-Fast staining: E. coli…

A: Acid fast staining is a type of laboratory test that is used to determine if a sample of blood or…

Q: Define the term pure pigment.

A: A material that changes the color of transmitted light due to absorption of selective wavelength is…

Q: The bacterial cells in the image below were stained with a high concentration of carbolfuschin for…

A: Carbol fuchsin, carbolfuchsin, or carbol fuchsin is basically a mixture of "phenol" and basic…

Q: They are not a by-product of any part of human metabolism. Why doesn’t the human body use PCBs as…

A: PCB of polychlorinated biphenyl is a manmade organic chlorine compound. It is mainly used as a…

Q: What stains best enhance the visibility of cellular structures?

A: Microorganisms are minute organisms with colorless cellular structures. They are visualized under…

Q: When viewed under a microscope, bacteria appear as red rods after they have been stained. Explain a…

A: Introduction Bacteria Are Minute, Single-celled Organisms That Can Be Found In Large Numbers In All…

Q: Attached below is the study about the effects of handwashing and the effectiveness of soap against…

A: From the figure 8 , Agar plate with bacteria; (A) depicts the results before washing hands . There…

Q: explain light reaction steps?

A: Photosynthesis is the method by which autotrophic plants make their possess nourishment. Co2, water,…

Q: plain Why do acidic dyes not stain bacterial cells?

A: Staining is the process of changing the colour of a substance to make it easier to examine tissues,…

Q: 7) One of the following antibiotics doesn’t work through the same class of molecules as the rest: a)…

A: Daptomycin works through a different class of molecules known as lipopeptides, whereas the rest of…

Q: For what purposes is alcohol a useful antiseptic?

A: A microorganism is a microscopic organism which may exist in its single-celled form or in a colony…

Q: List the Comparison of Positive and Negative Stains.

A: A light microscope is the most commonly used microscope for viewing specimens. The specimens that…

Q: make a comparison viewing a microscope slide under low magnification and high magnification by…

A: Viewing a microscope slide under different magnifications provides distinct advantages and…

Q: Explain the difference between resolution and magnification.

A: Introduction: The ability of optical devices used to acquire and generate images is determined by…

Q: If you travel north from the equator, what generally happens to the intensity of ultraviolet light?

A: The intensity of UV ray coming from sun depends on the angle of elevation. The angle of elevation of…

Q: 1 division: = cell = cell = μm divisions μm

A: 40divisions =44 μm 1 division= 44/40 μm = 1.1 μm

Q: Ultraviolet Radiation Index across the World.  The colors on this map of the world represent…

A: Sun emits solar radiations called electromagnetic radiations. It includes visible light , Ultra…

Q: Contrast how the views differ under high power (40x) and oil immerson (100x) objective lenses in…

A: Compound microscopes provide more clear and better microscopic view of the entities observed than…

Q: This part of the staining process helps the primary stain to remain in the cell during…

A: Staining of biological samples is a very useful process for detailed observation and measurement of…

Q: Provide an illustration and brief description of the pathway of light in relation to magnification…

A: Introduction :- A microscope is a device that magnifies images of small objects, allowing the…

Q: Briefly explain the difference between Wright Staining and H&E Staining (why use one over the other)

A: Staining is defined as a technique ,which is utilized for increasing the contrast in biological…

Q: Illustrated Diagram: Make an illustrated diagram of a stepwise procedure for the performance of…

A: The staining is done to enhance the visualization of cell and certain cellular component under a…

Q: At which wavelength is UV radiation most germicidal? Explain.

A: Ultraviolet radiation is effective in germicidal techniques that leads to the inactivation of the…

Q: What color would the bacterial cells have when viewed theoretically under the microscope after the…

A: Gram staining is a age old method to classify bacteria according to the composition of their cell…

Q: elevated NaCl level. A yellow halo surrounds the growth, indicating the bacterium fermented sugar in…

A: Answer D. selective and differential medium

Q: It is expected that amoxicillin would be more effective against Gram-positive bacteria.  Explain…

A: Amoxicillin is a beta-lactam antibiotic that functions by attaching itself to the membrane proteins…

Q: Gram straining procedure. Indicate the following information A. Shape........ B. Stained color…

A: On the basis of gram staining, we can differentiate between two types of bacteria, one with thick…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.