Centrifugation - Study guides, Class notes & Summaries

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...

MLS Exam Questions & Answers 2024/2025 Stress - ANSWERS↑ ACTH, cortisol, catecholamines IV fluid contamination - ANSWERS↑ glucose, K+, Na+, Cl- (depending on IV). Possible dilution of other analytes. Incorrect anticoagulant or contamination from incorrect order of draw - ANSWERSK2EDTA: ↓ Ca2+, Mg2+; ↑ K+ Sodium heparin: ↑ Na+ if tube not completely filled Lithium heparin: ↑ lithium Gels: Some interfere with trace metals & certain drugs Hemolysis - ANSWERS↑ K+, M...

MLS Review Harr: Hematology A. A false increase in hematocrit (Hct) value Insufficient centrifugation does not pack down the red blood cells; therefore, the Hct, which is the volume of packed cells, will increase. - ANSWER-Insufficient 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 A. Anisocytosis A A mature erythrocyte is approximately 7-8 μm in d...

Insufficient 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 - 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. Hypochromia C. Poikilocytosis D. Pleocytosis - A...

What are the two categories of manual nucleic acid extraction liquid phase extractions Solid-support extractions What chemicals are included in liquid phase manual nucleic acid extraction phenol/chloroform What are solid-support manual nucleic acid extractions based on reversible associations between nucleic acids and silica matrix column packing, or magnetic beads functionalized with surface chemistries specific for the nucleic acid species of interest What is an advantage of the magneti...

What's the reason for filtration in recrystalization - correct answers to remove insoluble impurities ortho and para are more stable why - correct answers because allow for tertiary carbocation when can you skip filtration during recryst. - correct answers if no insoluble impurities are present why warm filter tip pipets - correct answers to prevent premature crystalization why cant the solvent from a recrystallization be removed via evaporation instead of centrifugation? - correct ...

A. A false increase in hematocrit (Hct) value Insufficient centrifugation does not pack down the red blood cells; therefore, the Hct, which is the volume of packed cells, will increase. - ANSWER-Insufficient 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 A. Anisocytosis A A mature erythrocyte is approximately 7-8 μm in diameter. Variation in normal ...

Hematology Comp Exam Questions & Answers 2024/2025 Insufficient 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 - ANSWERSA. A false increase in Hematocrit (Hct) value Variation in red cell size observed on the peripheral smear is described as: A. Anisocytosis B. Hypochromia C. Poikilocytosis D. Pleocytosis - ANSWERSA. Anisocytosis Which of ...

What do the vast majority of proteins routed through the secretory pathway have in common? A. They will be secreted. B. The are post-translationally targeted to their final destination. C. They are initially post-translationally inserted into the endoplasmic reticulum (ER) lumen. D. They are co-translationally inserted into the ER lumen. - Answer D. They are co-translationally inserted into the ER lumen. Feedback: Fig. 13-1 Which of the following accurately describes targeting ...

What is hemoglobin composed of? 4 heme, 4 iron, 4 globins What disorder does a defect in heme synthesis lead to? Porphyria Porphyria Deficiency in the enzymes of the porphyrin pathway leads to insufficient production of heme. The principal problem in these deficiencies is the accumulation of porphyrins, the heme precursors, which are toxic to tissue in high concentrations. What is methemoglobin? Methemoglobin is a form of hemoglobin that contains ferric [Fe3+] iron and h...