Question 3Describe the production of X-rays by a rotating anode tube. Explain the advantages of using arotating anode compared to a fixed anode.[1.3]

Rotating Tube Anode: A vacuum tube known as an X-ray tube produces X-rays from electrical input…

Answered: Question 3 Describe the production of…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Question 6 Below is a BSA standard curve and the duplicate values of absorbance for 3 samples. Calculate the concentration of BSA in each sample and say if the standard curve is adequate for each of these samples? Why or why not? If not, what would you do to fix this? Show your calculations.
Question 34 Which of the following is NOT an example of innate antimicrobial drug resistance? slow growth (high doubling time) O having a tough, impermeable cell wall composition O having an outer membrane O recieving a gene for B-lactamase Question 35 Which of the folowing is a rationale behind semisynthetic antimicrobials? O Overcome bacterial resistance mechanisms O Increase dysbiosis O Decrease a drug's therapeutic index O Prevent uptake by bacterlal cells
Question 10: What does the presence of the prototrophic strain "control" for? In other words, what was its purpose in the experiment? O To ensure that the UMM basic medium can support growth and to give an indication of what growth on such a medium should look like. O To ensure that the control strain will grow in a rich environment which will give an idea of what mutant strains will look like on an UMM basic environment. O To see if all other strains will grow in a rich environment. There is no reason other than curiosity. O To see if the control strain is prototrophic.
QUESTION 9 Explain why an Ether (as shown below) has a low boiling but a ketone (propanone) as shown below) has a high boiling point. H;C CH3 H;C CH3 O A. Ether forms weak dispersion forces with itself while Ketone forms strong hydrogen bonds with itself O B. Ether forms weak dispersion forces with itself while Ketone forms strong dipole-dipole interaction with itself OC Ether forms weak dipole-dipole interaction with itself while Ketone forms strong hydrogen bonds with itself O D. Ether forms weak hydrogen bonds with itself while Ketone forms strong dispersion forces with itself. O E. Ether does not form any bonds with itself since there are no H atoms while ketone forms strong hydrogen bonds with itself.
Question 4 All of the following are true about eyes EXCEPT Each cone cell attaches to one connecting neuron, thus giving the brain fine detail O Cones allow us to see color O light hits cones directly without other cells in the way but rods are blocked by other cells we have the most cones at the very back of the eye in the fovea region Question 5 1 The rods and cones in our eyes have special proteins embedded in their membranes which hold light- reacting molecular units. In rods the unit is called which is a modified form of Vitamin A. O carotene O codeine O carnassial O retinal
Light emitting diodes work by creating an electrical circuit where electrons fall across a “band gap" (i.e. they go from a high energy state to a low energy state). The larger the gap, the more energy they emit when they fall. This energy is emitted as a photon (i.e. a particle of light). The color of light generated by the LED is directly related to the size of the band gap. A large energy change results in blue light and small energy changes results in red light. Because LEDS made of pure elements can only emit light that is too high or too low in energy for us to see, mixtures of elements must be used to create a band gap that results in visible light. The table below summarizes the composition and properties of three different elemental combinations used in LEDS. Table 1: Composition and Properties of LEDS Element 1 Element 2 Size of Band Gap LED Color Gallium Nitrogen Large Blue Gallium Phosphorous Medium Green Gallium Arsenic Small Red
QUESTION 5You are asked to recommend an antibiotic to treat potential pathogenicityt in an animal. Describe a method which will allow you to make this recommendation.
QUESTION 9 For microprojectile bombardment, the particles used are typically? a. Nickel O b. Tungsten c. Magnesium d. Copper
Question 5. What is typically the purpose of using a transmission electron microscope to image a sample? A. To obtain greater magnification. B. To obtain greater resolution. C. To obtain greater resolution and magnification. D. To observe organelles. E. None of these answers is correct.
3
In a reverse phase chromatography set up, the component that yields the lowest Rf value is likely to be O Both polarity O Polar O Non-polar O Cannot be determined
Question 23 Which of the following is a nucleoside A. D. HO OH "NH но ÓH ÓH В. E. NH 2 `NH он HO-P=0 `NH2 HO-P-OH он ОН NH2 C. NH A B B D D) A E

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Question 3 Describe the production of X-rays by a rotating anode tube. Explain the advantages of using a rotating anode compared to a fixed anode.