Spectrophotometer - Study guides, Class notes & Summaries

Chapter 1: Clinical Chemistry Questions with Verified Solutions Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR, and near UV regions of the spectrum? A. Tungsten-filament B. Hydrogen C. Deuterium D. Mercury Vapor A. Tungsten-filament Which of the following isolates light within a narrow region of the spectrum? A. Photomultiplier tube B. Monochromator C. Photovoltaic cell D. Detector B. Monochromator Which of the following is not desc...

KSU Biology 198 Exam 1 Latest Version Graded A+ Microscope A device used to see tiny organisms, used for research and counting. Spectrophotometer A device that passes light through a substance in order to assess the absorption and transmittance. Absorbance Measurement of the amount of light captured by the dissolved or suspended material. Transmittance The fraction of incident light at a specified wavelength that passes through a sample. investigated The questions that are a...

MCB*2050 Molecular Biology of the Cell W21 Midterm Examination, SAMPLE EXAM with Prof. K. Yankulov University of Guelph PART A (Choose only one and the best answer among the choices given.) 1. What happens when you use a mixture of four fluorescent 2′,3′-dideoxyribonucleoside triphosphates in DNA sequencing protocols? a. Multiple DNA chains that terminate at the 3’ ends at all possible nucleotide positions are produced b. When a 2′,3′-dideoxyribonucleoside triphosphate is added t...

1. A patient has undergone overnight oximetry. Data shows several episodes of O2 desaturation throughout the night. The RTT would expect orders for which of the following kinds of testing: a. V/Q scan b. pulmonary function testing c. polysomnography d. 24-hour Holter monitoring - Answer- Your answer: C Correct answer: C The use of overnight oximetery is often used to detect O2 desaturation during the night that may be associated with central or obstructive sleep apnea. Because data...

MLS Exam 4 Questions & Answers 2024/2025 absorbance spectrophotometry - ANSWERSthe concentration of an unknown sample is determined by measuring its absorption of light at a particular wavelength and comparing it with the absorption of light by known standard solutions measured at the same time and with the same wavelength. absorbed - ANSWERSall other wavelengths that are not seen by the eye Beer's Law - ANSWERSthe amount of light absorbed by a solution is directly proportional to th...

4 Basic Steps of binary fission : 1. Growth of cell size 2. Replication of DNA 3. Division of cytoplasm 4. Septum formation & cell division Z Ring Assembly : FtsZ assembles Z ring to form divisome Generation Time : time it takes to double the population Lag Phase : Cells adjust to culture medium; no change in population What factors determine the duration of the lag phase? : Genetic makeup, media composition, initial inoculum size During which phase of the growth curve is it most ap...

4 Basic Steps of binary fission - Answer-1. Growth of cell size 2. Replication of DNA 3. Division of cytoplasm 4. Septum formation & cell division Z Ring Assembly - Answer-FtsZ assembles Z ring to form divisome Generation Time - Answer-time it takes to double the population Lag Phase - Answer-Cells adjust to culture medium; no change in population What factors determine the duration of the lag phase? - Answer-Genetic makeup, media composition, initial inoculum size During which phase of...

Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR, and near UV regions of the spectrum? A. Tungsten-filament B. Hydrogen C. Deuterium D. Mercury vapor - A most common light source for photometry in the visible region. continuous spectrum (360-800 nm). near IR and UV. Hydrogen and Deuterium (200-375 nm) Mercury vapor- not a continuous spectrum, emitting radiation at specific wavelengths Which of the following isolates light within a narr...

in size exclusion chromatography, you would Expect a. colored mol to elute off column prior to clear b. sm mol to elute off column faster than lg c. sm mol to bind to the column when the buffer pH is low d. sm mol to elute off column slower than lg mol - D. sm mol to elute off column slower than lg mol elevated serum pro and decreased albumin are associated with: a, glomerulonephritis b. cirrhosis. c. starvation/anorexia d. monoclonal gammopathy - d. monoclonal gammopathy beers law sta...

MMSC407 Final Exam Questions with Correct Answers Describe the characteristics of light as an energy source. - Answer-1. Wavelength - the distance between the crests of two successive waves 2. Amplitude - the height of each wave 3. Frequency - the number of waves which pass an observation point in one second In terms of energy: -High energy = high frequency, short wavelength -Low energy = low frequency, long wavelength Describe the relationship between percent transmittance and abso...