Describe the effects of a lethal dose of ionizingradiation at the molecular level. What type of filterwould be used to filter sterilize a heat-sensitive liquid?

Q: Discuss the principle behind Salkowski test, reaction with ammonium ferrothiocyanate, and…

A: Introduction: Lipids are defined as esters of alcohol and fatty acids which are water-insoluble and…

Q: 18. (0.1) Is it possible to use UV-VIS spectroscopy to quantify a non- absorber species? Provide a…

A: The spectrometer measures wavelengths of electromagnetic radiation (light) that interacts with a…

Q: Define the term Tonicity of Solutions?

A: Any solution has 2 components – solute and solvent. Solute is substance which gets dissolved and…

Q: Explain electrostatic screening by a water molecule within a living cell.

A: To explain  The electrostatic screening by a water molecule within a living cell.

Q: What is the relationship of concentration and absorbance based on the table and what are the changes…

A: The concentration of a solute in a solution can be determined spectrophotometrically by passing a…

Q: When eluting your analyte of interest using HPLC, gradient elution can be used. How does Gradient…

A: HPLC is expanded as High Performance Liquid Chromatography. It helps in excluding out the analyte in…

Q: The Cavity Ring-Down Spectroscopy (CRDS) technique offers greater  sensitivity compared to other…

A:

Q: 14.22. Calculate the penetration depth of 100-MHz radiation in fat and in muscle.

A: Introduction: The tissue that stores fat in humans is called 'adipose tissue'. It is composed of…

Q: Below is a BSA standard curve and the duplicate values of absorbance for 3 samples. Calculate the…

A: Lambert Beer law states that Absorbance of a solution is directly proportional to its concentration…

Q: True or False. If drug A produces a larger zone of inhibition than drug B on the Kirby-Bauer disk…

A: Introduction If drug A does produce a larger zone of inhibition, that is one positive attribute of…

Q: phenazopyridine

A: Phenazopyridine could be a pain reliever that affects the lower a part of your tract (bladder and…

Q: Graph of Absorbance vs Time(mins) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 10 20 30 40 50 60 70 Time (mins) -…

A: Ampicillin is an antibiotic which inhibits the bacterial enzyme transpeptidase by binding to it…

Q: What is an hypotonic solution?

A: Tonicity is a proportion of the viable osmotic pressing factor inclination; the water capability of…

Q: eluent strength increase as solvent becomes less polar in reversed-phase chromatography, whereas…

A: Reversed- phase chromatography – uses a non - polar stationary phase. Eluent strength is increased…

Q: Define iodide pump.

A: Iodide pump : An integral membrane protein that co transports Na+ and I- into the thyroid follicles.…

Q: Briefly describe the difference between chromatography and ion exchange

A: Asked : Difference between chromatography and ion exchange

Q: ttheendoftheprocedureforthisexperiment,arecrystallizationisdoneina mixed solvent system. Which…

A: Recrystallization is generally happens using a mixture of the solvent of two solvents is polar…

Q: Why are quantitative absorbance measurements made at lambda max?

A: Introduction :- Using spectrum of wavelength , different levels of absorption can be calculated. It…

Q: Discuss the physical orig ins of the gross selection rules for infrared spectroscopy and vibrational…

A: The basic principle of all spectroscopic techniques is to focus a beam of electromagnetic EM…

Q: If we wanted to measure the BSA absorbance without the Biuret reagent, which wavelength would we use…

A: BSA stands for bovine serum albumin, which is a protein extracted from cows' serum albumin. In lab…

Q: what is the standard concentration for solutions in an electrochemical cell?

A: An electrochemical cell is a battery that can either produce electrical energy from chemical…

Q: For a TLC experiment, what is the purpose of the pentane extraction of spinach juice? Why wouldn’t…

A: Answer: Introduction:Thin layer chromatography, or TLC, is an analytical method to analyse mixtures…

Q: what is the property of the solution that makes log(concentration) Vs electrochemical potential…

A: Answer: In an electrochemical cell, increasing the concentration of reactants will increase the…

Q: Would a sample solution that has a high absorbance reading, have a low or a high concentration

A: Absorbance is a number that measures the diminishing of the transmitted radiant power in a solution.…

Q: Graph of Absorbance vs Time(mins) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 10 20 30 40 50 60 70 80 Time…

A: Ampicillin helps in retarding the growth of microorganisms by stopping their growth because it is an…

Q: What is radiation? Differentiate between ionizing and non-ionizing radiation in their mode of action

A: There are two types of radiation that are majorly used. They are known as ionizing radiation and…

Q: What is an absorption spectrum? The following graph is the visible absorbance spectrum of an…

A: There are different types of electromagnetic radiation. The different radiations have different…

Q: Using absorbance readings and a standard curve relating absorbance to cell number, you suspect that…

A: The countable range of colonies for an ideal plate count method is considered 30-300 colonies per…

Q: What is the function of the neutralization solution?

A: DNA Neutralizing Solution is utilized for the disengagement (isolation) of plasmid DNA by soluble…

Q: Differentiate between ionizing and nonionizing radiation in theirmodes of action.

A: Radiation is the transmission or emission of energy from a source in the form of particles or waves…

Q: A sample to be used for medical imaging is labeled with 18F,which has a half-life of 110 min. What…

A:

Q: Why do you think surfactants denature proteins? Select all that apply.

A: Introduction: Protein are the most bountiful natural element of the living framework. They found in…

Q: Define water activity and briefly describe how it can be determined. Why is it difficult for…

A: The tiny organisms that cannot be observed by unaided eyes are the microorganisms. The microbes…

Q: Give two advantages and two disadvantages to using the biuret reaction to measure protein…

A: Aromatic amino acids such as tyrosine, tryptophan and phenylalanine exhibit strong UV-light…

Q: Would you say that the GadC anti porter exhibits the same pH dependence as the AdiC anti porter? If…

A: Escherichia coli, rely on acid-resistance systems (ARs) to survive the acidic environment of the…

Q: Different light source requires for the molecular absorption spectrometer and for an atomic…

A: A spectrometer is any instrument used to measure change in spectrum. This could be a mass-to-charge…

Q: What is the relationship between biosurfactant concentration, surface tension and micelle formation?

A: The water molecules are in interaction with the adjacent water molecules through hydrogen bonds. The…

Q: You treat cells briefly with radioactively labeled cysteine and then transfer them to a medium with…

A: Cysteine is a nonessential amino acid. It is one of the amino acid that contains sulfur which allows…

Q: How can contaminants in DNA and RNA samples affect absorbance at 260 and concentration results?

A: Introduction: The rings of the bases in nucleic acids (A, T, G, C, and U) are made up of alternating…

Q: Atomic absorption spectroscopy (AAS) and UV-Vis spectroscopy is similar in principles”. Do you agree…

A: Quantitative determination of samples is performed with the help of biochemical techniques.…

Q: Discuss briefly Mössbauer spectroscopy. the principle of

A: Spectroscopy is the study concerned with the measurement of spectra produced when a substance…

Q: Sulfamethoxazole is a type of sulfonamide antibiotic. Its absorbance ranges from 250-300 nm in a UV…

A: Sulfamethoxazole Sulfamethoxazole is a sulfonamide based bacteriostatic antibiotic, widely used to…

Q: Why the physicochemical changes in liquid water caused by radiation is the key to understanding the…

A: The physical and chemical properties of any material are referred to as its physicochemical…

Q: Which molecules, or function groups, or complexes that may be responsible for the absorbance at 595…

A: Spectrophotometry applications are useful to measure the absorbance, reflectance, and transmission…

Q: Dilute silver nitrate is sometimes applied to the eyes of newborn infants. Explain why a dilute…

A: Eye is an organ which helps us to provide vision it has several photoreceptors which receives light…

Q: Calculate the Rf value if a solute travelled 5 cm from the base spot and the solvent front is 10 cm…

A: Chromatography was a separation technique used to separate mixtures of compounds based on…

Q: Explain the differences, if any, between adsorption and gas solid chromatography

A: Introduction- Chromatography is a technique that is used to separate the mixtures present in the…

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