Exam (elaborations)
RBC test Exam 1 QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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RBC test Exam 1 QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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RBC test Exam #11. What is an erythrocyte?: A red blood cell
2. What is erythropiesis?: Making of RBC
3. Where does erythrosiesis take place?: Bone marrow
4. Order of precursor cells: MPSC, Rubriblast, prorubricyte, rubricyte,
metarubri- cyte, reticulocyte, erythrocyte
5. Why does a RBC have a limited life span?: No nucleus which means no
cell functions. (Membranes become less flexible and become
destroyed by spleen)
6. Erythropoietic process: 1. Gradual Decrease in size
2. Decrease in basophillic cytoplasm (Gets lighter as it gets older)
3. Increase in density of the chromatin (nucleus gets darker)
4. Loss of nucleus
7. Write what you know about Diapedisis: Proestrogen bleeding occurs
1/4
, in re- sponse to estrogen levels. First, high estrogen levels makes the
dog go into proestrus, then the RBC squeeze thru the pores of the
capillary walls.
8. What does an erythrocyte do?: Carrier of O2 and CO2
9. Where is RBCs removed?: By the RES (reticulo-endothelial system)
10.What is the composition of hemoglobin: 4 heme molecules contain 1
iron atom each
Globin - two pairs of polypeptide
chains Porphyrin Ring
11.What are polypeptide chains made of?: Amino Acids
12.Compare a PCV to Machinery: PCV - Cheap, fast, pretty accurate, for
small amount of blood
Machinery - More accurate, reproducible, fast
13.What is plasma trapping?: When the centrifuge is spinning too slowly
and traps the plasma and other cells and falsely elevates the PCV
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