Q: Which of the ff. describes the components of a turbidimeter in the correct order? a.) light source…
A: Turbidimeter is the process of scattering or the absorption of light colliding with solid or…
Q: What kind of microscope was invented in 1932 that was able to record images of transparent…
A: A microscope is a laboratory instrument used to examine objects that are too small to be seen by the…
Q: What is a micrometer (μm )? Is it really possible to see microbes with this dimension using…
A: Microbes are often tiny, even when compared to minuscule mammal cells. To observe them, the…
Q: Fluorescence intensities depends on the molecular structure and its environment. Discuss the factors…
A: Fluorescence is the visible light or radiations emitted by certain substances when a beam of light…
Q: Why is ionizing radiation more effective than UV radiation forsterilization of food products?
A: Ionizing radiations are the radiations that are released by the atoms that travels in the form of…
Q: choose a product of nanotechnology and Discuss the purpose and how the technology is used. It is…
A: Introduction Nanotechnology or nanotech is a branch of science which deals with matters like…
Q: Part C Once a slide is prepared and placed onto the microscope, the magnification and focus need to…
A: A slide is prepared is placed onto the microscope, the slide is kept far from the objective lens so…
Q: cal value and medicinal value of Callystatin A (a polyketide marine sponge ). Reference the answers…
A: A polyketide natural product from the leptomycin family of secondary metabolites is known as the…
Q: Which of the ff. best describes the configuration of a traditional colorimeter? a.) light source…
A: Components of colorimeter are : Source , wavelength selector , sample holder or container , detector…
Q: How do nanopores work?
A: DNA sequencing is a method to determine the arrangement of nucleotide within DNA. It is used to…
Q: Differentiate spectroscopy, spectrometry, and spectrophotometry
A: The study of the interaction of matter with electromagnetic radiation as a function of the…
Q: FOV measured at 100x total magnification is 400 micrometers. What is the FOV at 40X total…
A: NOTE: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question…
Q: Pigment molecules absorb light energy of all wavelengths and reflect other wavelengths Select one:…
A: Photosynthetic organisms like plants (Producers) contain light-absorbing molecules called pigments…
Q: Design an experiment to isolate microorganisms able to degrade starch. Explain step wise
A: Starch is a polysaccharide present abundantly in plants and generally deposited in granule form in…
Q: Define the term pure pigment.
A: A material that changes the color of transmitted light due to absorption of selective wavelength is…
Q: Imagine you are using a microscope with 5x eye pieces (instead of 10x like ours). If you change from…
A: given that the initial two magnifications are 5x and 10x , and final magnification is 5x and 40x
Q: Both stained and live organisms are viewed using a microscope, but what is the purpose/benefit of…
A: Cell staining is a technique that is used in microscopy where certain chemicals can stick to…
Q: Bacteria tend to stain more readily with cationic (positively charged) dyes because bacteria a.…
A: Bacteria are stained by positive and negative dyes.
Q: Which statement(s) describe(s) a microplate reader? A. It is spectrophotometer B. It can read the…
A: Introduction : microplate reader is used to detect biological, chemical and physical events of…
Q: Which of the following is NOT an optical microscope? a. dark-field c. atomic force b. confocal d.…
A: Microscopes that use light are known as optical microscopes.
Q: What is the parts and its functions of fluorescence spectroscopy and uv vis instruments
A: Spectroscopy is the study of the absorption and emission of light and other radiation by matter.
Q: Which of the following is not a Magnoliid? www A. Gumamela B. Cinnamon C. Guyabano D. Atis
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
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: What is the difference between fluorescence and phosphorescence?
A: When an atom or a molecule returns to the ground state from an excited state it emits radiation…
Q: A person is trying to extract a pigment found in the thylakoid membrane of a plant cell. Which would…
A: The thylakoid membrane is the site of photochemical and electron transport reactions of oxygenic…
Q: What wil a slant look like if sterile? contaminated?
A: Microbes, which are tiny and nearly invisible, have had a huge influence on society since the…
Q: Define the following termonologies in brief 1.Cellular Permeability 2.Fluorescence in situ…
A: INTRODUCTION Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea,…
Q: a. Why must heat be used with the application of the primary stain during endospore staining?
A: Defination- An endospore is a non -reproductive structure which is dormant and tough produced by…
Q: Why is one pigment more soluble than another? Consider Figure 4.5.
A: Chlorophyll is a pigment present in the thylakoid membrane of chloroplast in a plant, very crucial…
Q: What main advantage do microbial plastics have over syntheticplastics?
A: Plastics are organic materials. It is derived from the Greek word “plastikos”.
Q: Why do electron microscopes have a better resolution versus light microscopes? OA. The additional…
A: Introduction: A method for getting high resolution photographs of both biological and non-biological…
Q: choose a product of nanotechnology found at home. Discuss the purpose and how the technology is…
A: Nanotechnology essentially means employing the matter at a tiny scale, at the atomic and molecular…
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: 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: Does it enhance the meaning of work using Titan 80-300 Cubed Microscope?
A: Titan 80-300 Cubed microscope is one of the most advanced and powerful electron microscopes. It has…
Q: Imagine that you are asked to design a surface (BUT ONLY SURFACE) pasteurization process of eggs.…
A: The process by which the pathogenic microorganisms are destroyed from certain food items is called…
Q: PH paper used to identify if a substance is acidic or basic was previously derived from organisms…
A: The substances that are found naturally and can be used to infer the chemical nature of a solution…
Q: You isolate a new natural product from a sponge. Because it is new and non-obvious, you suggest to…
A: You isolate a new natural product from a sponge. Because it is new and non-obvious, you suggest to…
Q: Find the connection among the words below and choose the letter of the word which is different. A.…
A: Gel electrophoresis Gel electrophoresis or agarose gel electrophoresis is a molecular technique…
Q: How does electrophoresis separate dye pigments? What charge is carried by the pigments in this…
A: Electrophoresis d the process of separation of DNA/ protein molecules on the basis of size. The DNA…
Q: Explain and give insight why the use of a face shield protect us against COVID 19, and now it is no…
A: The face shield is a transparent kind of plastic and can be remolded to produce transparent glass…
Q: Describe the term nanopores
A: Deoxyribonucleic acid (DNA) sequencing is the process of determining the nucleic acid sequence in…
Q: what effect would using an old Gram's crystal violet preparartion containing crystallized dye have…
A: A microbe is a living entity that is so tiny that it cannot be seen with the naked eye. Microbiology…
Q: Discuss the principles,uses, advantages and disadvantages of nanopore technology.
A: Nanopore technology begins with the semiconductor wafer with many nano pores. the wafer and…
Q: Imagine you are using a microscope with 5x eye pieces (instead of 10x like ours). If you change…
A: The overall magnification of a picture you're looking at through a microscope is actually very…
Q: Imagine you accidentally applied water during the decolorization step instead of ethyl alcohol.…
A: Gram positive bacteria has thick peptidoglycan layer and thin outer membrane. Gram negative bacteria…
Q: Why do we stain some organisms before viewing them under a microscope? (see top of p 14)
A: Microbiology is the study of microorganism. The organisms that cannot be seen through naked eyes are…
Q: What has been the limiting factor in engineering microalgae toproduce greater amounts of lipids?
A: Microalgae are phototrophic eukaryotic unicellular species and they are found in fresh or marine…
Q: Image A: Image B: 25 um O A. image A- scanning electron microscope, Image B- phase contrast…
A: Scanning electron microscope (SEM): It produce the image of the surface area by scanning with the…
Q: Which of the following has the shortest wavelenght? A. Radiowave B. infrared c. visible light d.…
A: The question asks about the correct option for having the shortest wavelength.A). Radio-waves B).…
Step by step
Solved in 4 steps
- What is the difference between total magnification and objective magnification? You are looking at an organism on the 20x objective What is the total magnification? If the organism takes up 62 units on the ocular micrometer, how big is the organism is micrometers? Show your work.What major advantage does phase-contrast microscopy haveover staining?What advantage do fluorescent dyes and fluorescence microscopy provide in comparison to the chemical dyes used to stain specimens for light microscopy?
- Please discuss why staining is important in visualizing microbes under the microscope. What different types of staining methods can be used?Suppose you were in a research lab in Romania and the lab is equipped with several spectrophotometers (UV and VIS). You need to determine the concentration of a protein solution and although you know several techniques you must decide which spectrophotometer to use. Which spectrophotometer are you choosing and which wavelength will you use?if 5X instead of 10X oculars were used with the same objectives now on your microscope, what magnifications would be achieved?
- Explain when to use bright-field, phase-contrast, dark-field, fluorescence, transmission electron, and scanning electron microscopy for a given situation. What is an example of this situation?In light microscopy, when magnification is increased, the lens focuses closer to the sample. This makes the user more likely to ram the sample into the lens. Why is it common for the lens to focus closer to the sample at higher magnifications? What can be done to mitigate this risk?Why are chemical stains required for visualizing cells and tissues with the basic light microscope?