Spectrophotometer Study guides, Class notes & Summaries

Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR and near UV regions of the spectrum? - Answer Tungsten filament Which of the following isolates light within a narrow region of the spectrum? - Answer Monochromator Which of the following is not descriptive of a photomultiplier tube? - Answer Cannot be used with a chopper Which of the following is false about a photomultiplier tube? - Answer Is composed of an iron plate and ...

Technologist in Molecular Biology, MB(ASCP) board exam prep 2024 with 100% Correct Answers Pyrimidine - Answer ️️ -One carbon ring Cytosine, Thymine, Uracil What is the function of mRNA? - Answer ️️ -Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? - Answer ️️ -Carries aa to ribosome Anticodon pairs with codon on mRNA strand What is the function of rRNA? - Answer ️️ -part of ribosome structure most abundant RNA coordina...

what is spectrophotometry? correct answers Measures the amount of specific colored light being absorbed by or transmitted through a colored solution measure light intensity as a function of wavelength what is the order of the basic components of a spectrophotometer correct answers 1. light source 2. collimating lens 3. entrance slit 4. monochromator 5. exit slit 6. sample cuvette 7. PM tube 8. photodetector ay Types of light sources correct answers Tungsten (quartz vapor...

A; Animals serve as a reservoir of infection" is the correct answer because Shigella only infects humans while Salmonella is found in many animals. Both have diarrhea as the major symptom. Endotoxin is produced by all gram negative bacteria and exotoxin is only produced by Shigella. A major difference between Salmonella enterica and Shigella infections is that only in salmonellosis can: A. animals serve as a reservoir of infection B. diarrhea become the major symptom C. endotoxin play a ...

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...

Mttc Integrated Science Life Sciences And General Knowledge Exam Test With 100% Correct Answers volumetric flask - CORRECT ANSWER-used to accurately prepare solutions of various concentrations often used in titrations erlenmeyer flask - CORRECT ANSWER-can be used for mixing, transporting, and reacting, but are not appropriate for accurate measurements repippette - CORRECT ANSWER-hand operated pump that dispenses solutions beakers - CORRECT ANSWER-can be used to measure mass or disso...

PAX Science NLN Exam A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains A.) carbon dioxide. B.) hydrogen. C.) oxygen. D.) nitrogen. answer: carbon dioxide. A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient? A.) 125/95 mm Hg B.) 120/80 mm Hg C.) 100/80 mm Hg D.) 72/120 mm Hg an...

arm - use to safely carry the microscope coarse adjustment knob - use to focus at low power ONLY condenser - concentrates the light on the specimen controlled variable - the variable that could impact the outcome of the experiment by does not because it is held constant and not varied; ex) light, temperature, etc dependent variable - what is measured, observed or counts; must be specific and quantitative; ex) heart rate diffusion - movement of particles from an area of high concentration ...

NLN PAX PREP Science Real Exam Questions and Answers | Already Passed Rated A+ | Verified A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains A.) carbon dioxide. B.) hydrogen. C.) oxygen. D.) nitrogen. answer: carbon dioxide. A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient? ...

Measurement of alkaline phosphate in plasma (blood) can be used for diagnosis of bone and liver diseases. True or False correct answers True Which pipette is most appropriate for measuring 0.1mL? a) P20 b) P200 c) P1000 d) P5000 correct answers b) P200 Which pipette is most appropriate for measuring 0.1mL? a) P20 b) P200 c) P1000 d) P5000 correct answers b) P200 Why is a buffer used in the assays? a) The buffer provides substrate from the reaction. b) The buffer cause...