Centrifugation Study guides, Class notes & Summaries

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...

Disposal of infectious materials: Off-site activation correct answer: Packaging and shipping of untreated wastes to an offsite facility for inactivation and disposal Stericycle Spectrophotometry correct answer: Automation Analyzers correct answer: Continuous Flow Liquids are pumped through system of continuous tubing. Centrifugal Analysis Force of centrifugation transfers & contains liquids. Discrete Analysis (Most popular) Separation of each sample & reagent in a separate con...

Hershey and Chase performed an experiment in order to determine how bacteriophages infect bacteria. What did they find? The bacteriophage injects DNA into the host cell. This was found because, after centrifugation, the pellet was radioactive The largest difference between a Gram + and Gram - bacterial cell is: The gram + cell has a much thicker peptidoglycan layer Why does a Gram + cell stain blue/purple in a gram stain? The Gram + cell stains blue/purple because crystal violet rem...

NCA Laboratory Practice Exam Questions & Answers 2023/2024 How should HCl burns of the skin be treated? A. flush with copious amount of water B. flush with 10% sodium hydroxide and copious amount of water C. flush with 5% ammonium hydroxide and copious amounts of water D. rush the victim to the nearest emergency facility - ANSWER-A. flush with copious amount of water Which of the following procedures is most basic and effective in preventing the spread of infectious diseases in the h...

ASCP MLS Hematology EXAM PREP QUESTIONS AND ANSWERS nsufficient centrifugation will result in: A. A false increase in hematocrit (Hct) value B. A false decrease in Hct value C. No effect on Hct value D. All of these options, depending on the patient - ANS A. Insufficient centrifugation does not pack down the red blood cells; therefore, the Hct, which is the volume of packed cells, will increase. Variation in red cell size observed on the peripheral smear is described as: A. Anisocytosis B. Hypo...

who provides the lipids in a viral envelope - correct answer the cell all viruses have a protein coat - correct answer true a virulent phage can inadvertently package host cell chromosome into phage particles - correct answer true you have a bacterium that picks up a new gene by Hfr conjugation. what is an explanation of why progeny of this bacterium express this trait? - correct answer the gene is integrated into the genome after successful transformation of a fragment of chromosoma...

1. A patient with multiple myeloma has the following reactions in the ABO typing: Anti-A= w+ Anti-B = w+ Anti-A,B = w+ Auto control = w+ A1 Cells = 4+ B cells = 4+ What is probably causing these results? A. Rouleaux B. Subgroup of A C. Patient has hypogammaglobulinemia D. Patient has selective IgA deficiency - ANSWER-A 2. An antibody screen utilizing polyethylene glycol (PEG) was performed. Reaction readings of this antibody screen are analyzed after immediate spin and again at 3...

The most commonly performed test for anticoagulation therapy is: - the prothrombin time If a urine specimen cannot be tested within ________ it should be refrigerated. - 1 hour Insufficient centrifugation while performing a microhematocrit will result in: - a false increase in hematocrit value A decrease in the number of white blood cells is known as: - leukopenia Which urine parameter would be abnormal when a patient has been fasting? - ketones Patients with uncontrolled diabetes will hav...

2024 VTNE Laboratory Test 2 (ACTUAL TEST ) Questions and Answers (Solved) 1. What is the maximum time a fecal can be used for fecal flotation with zinc centrifugation to look for ova and parasites if kept in the refrigerator? Answer: 3 days Ideally, a fecal should be collected and performed within 24 hours. However, the maximum time that the feces can still be used if refrigerated is 3 days. Fresher is always better! 2. A hematocrit tube provides the means for evaluating a patients pac...

ABO phenotype is determined by - ANSWER-both forward & reverse grouping Forward grouping is - ANSWER-using known sources of reagent antisera (antibodies) to detect antigens on the RBC Reverse grouping is - ANSWER-using reagent cells with known antigens & testing the plasma/serum for ABO antibodies The only Rh system antigen routinely tested for is - ANSWER-the D antigen, this is the 'pos' or 'neg' portion of typing The Rh control test is performed only on - ANSWER-AB pos blood, T...