Type of spectrophotometer - Study guides, Class notes & Summaries
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Clinical Chemistry I ASCP Review | 467 Questions and Answers
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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...
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Biol 240 - UW - Final Exam Questions And Answers With Verified Solutions Graded A+
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· Turbidity Measurements - Spectrophotometer sends light through a culture. Light absorbance 
can give a rough measure of cell density in the tube 
·Agrobacterium - Crown-Gall Disease - The crown gall is where the stem of the plant connects 
with the roots of the plant. Causes tumours, parasitism. THIS IS BAD, we don't want this one. 
Agrobacterium is the only one that can use opine as a carbon and nitrogen source. It robs the plant of 
organic carbon. We can use agrobacterium to introduce ne...
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QBM All of the Practice Exams Questions And Answers With Complete Solutions 2024
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QBM All of the Practice Exams Questions 
And Answers With Complete Solutions 2024 
d. protein as a cartoon model, DNA as a ball-and stick model. 
The image below shows 
a. protein as a ball-and-stick model, DNA as a molecular surface representation. 
b. DNA as a ball-and-stick model, protein as a molecular surface representation. 
c. both as ball-and-stick models. 
d. protein as a cartoon model, DNA as a ball-and stick model. 
e. both as cartoon models. 
b. DNA is responsible for bacterial trans...
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QBM Final Exam Questions And Answers With Complete Solutions 2024
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QBM Final Exam Questions And 
Answers With Complete Solutions 2024 
Define recombinant DNA technology 
Using molecular biology technique such as cloning, PCR, restriction enzymes digestion, 
and gel electrophoresis to take a gene from one source and joint it with another piece of 
DNA, creating a new recombinant DNA molecule that can be inserted in bacteria and 
further studied. 
What are 3 characteristics of DNA ? 
- Double strand 
- 5' to 3' directionality 
- antiparallel 
- base pairing [ad...
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MMSC 407 Exam 1 (A+ Guaranteed)
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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...
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MLS Chemistry Exam questions with correct answers
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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 ...
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Clinical Chemistry I ASCP Review - 467 / Clinical Chemistry I ASCP review (youlazy)
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Clinical Chemistry I ASCP Review - 
467 / Clinical Chemistry I ASCP 
review (youlazy) 
Questions & Answers 
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 - CORRECT ANSWER-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 vap...
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Chemistry MT AAB board exam review #1 Questions With Complete Solutions
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Specimens that can be analyzed for carbon dioxide - Answer-1. Serum 
2. Plasma 
3. Whole blood 
What will happen if blood is exposed to air during specimen collection for pH and blood gases? - Answerp C O 2 decreases 
Henderson-Hasselbalch equation - Answer-p H = p k a + log salt / acid 
What is the ratio of bicarbonate:carbonic acid in normal plasma - Answer-20:1 
Lab results on a known diabetic patient revealed a decreased bicarbonate and decreased ph. Which acid 
base disorder would most like...
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MTTC integrated science 094 Life Sciences and General Knowledge Correct 100%
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volumetric flask - ANSWER used to accurately prepare solutions of various concentrations 
 
often used in titrations 
 
erlenmeyer flask - ANSWER can be used for mixing, transporting, and reacting, but are not appropriate for accurate measurements 
 
repippette - ANSWER hand operated pump that dispenses solutions 
 
beakers - ANSWER can be used to measure mass or dissolve a solvent into a soulte 
 
graduated cylinder - ANSWER used for precise measurements and are more accurate than erlenmeyer fl...
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FIS 201 WVU Final (Mohr) Questions With 100% Correct
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Marquis Reagent - Turns purple with Heroin and Morphine, orange/brown with amphetamines 
Dillie-Koppanyi - Violet blue with Barbiturates 
Duquenosis-Levine - Purple with marijuana when chloroform is added 
Van Urk - Blue/purple with LSD (not appropriate for field tests) 
Scott Test - Color test for Cocaine. Adding cobalt thiocyanate turns solution blue, add hydrochloric 
acid and blue turns to pink, then add chloroform and it turns back to blue for positive result. 
Chromatography - Any of sever...
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