SBB Exam Review COMPREHENSIVE QUESTIONS AND
VERIFIED ANSWERS (DETAILED & ELABORATED)
ACTUAL EXAM 2025 TEST 100% SOLVED 2025!!
Band 3 - (ANSWER)macrocomplex of proteins including:
-Rh
-RhAG
-LW (ICAM-4)
-GPA
-GPB
-CD47
ATP source for RBCs - (ANSWER)90% from Glycolysis (Embden-Meyerhoff
pathway)
10% from pentose phosphate pathway
Methemoglobin Reductase Pathway - (ANSWER)necessary to maintain heme iron
in ferrous (Fe2+) state
Deficiency causes accumulation of methemoglobin, nonfunctional from of Hgb
Leubering Rapaport Shunt - (ANSWER)permits accumulation of 2,3-DPG
"Tense form" of Hgb - (ANSWER)DEOXYGENATED
widening of beta-chain
,lower affinity for O2
expels 2,3-DPG
"Relaxed form" of Hgb - (ANSWER)OXYGENATED
beta-chain pulled together
higher affinity for O2
expels 2,3-DPG
"Shift Right" - (ANSWER)higher P50 value
decreased pH (increased H+ ion), acidosis
increased 2,3-DPG
higher temperature
high pCO2
Seen in compensated anemia
"Shift Left" - (ANSWER)lower P50 value
increased pH (decresed H+ ion), alkalosis
decreasede 2,3-DPG
lower temeratures
low pCO2
,Seen in storage of RBC
Type 2 precursor - (ANSWER)Gal-GlcNAc
B1-4
Type 1 precursor - (ANSWER)Gal-GlcNAc
B1-3
Secreted (Se, Le)
Type 2 H antigen transeferase & Sugar - (ANSWER)FUT-1
Alpha-2-L-fucosyltransferase
Fuctose alpha1-2
A antigen transferase & sugar - (ANSWER)D-galactosaminetrasferase
N-acetylgalactosamine alpha1-3
B antigen transferase & sugar - (ANSWER)D-galacotsyltransferase
, galactose alpha1-3
Ax subgroup - (ANSWER)weakly positive anti-A
weakly positive anti-A,B
Am subgroup - (ANSWER)Negative anti-A
Secretes A & H
Ael subgroup - (ANSWER)Negative anti-A
Secretes H only
Highest expression of H
Lowest expression of H - (ANSWER)O>A2>B>A2B>A1>A1B> H deficient
Lewis transferase & Sugar - (ANSWER)FUT-3
Fuctose alpha1-4
Type 1 H antigen transferase & sugar - (ANSWER)FUT-2
Fuctose alpha1-2
VERIFIED ANSWERS (DETAILED & ELABORATED)
ACTUAL EXAM 2025 TEST 100% SOLVED 2025!!
Band 3 - (ANSWER)macrocomplex of proteins including:
-Rh
-RhAG
-LW (ICAM-4)
-GPA
-GPB
-CD47
ATP source for RBCs - (ANSWER)90% from Glycolysis (Embden-Meyerhoff
pathway)
10% from pentose phosphate pathway
Methemoglobin Reductase Pathway - (ANSWER)necessary to maintain heme iron
in ferrous (Fe2+) state
Deficiency causes accumulation of methemoglobin, nonfunctional from of Hgb
Leubering Rapaport Shunt - (ANSWER)permits accumulation of 2,3-DPG
"Tense form" of Hgb - (ANSWER)DEOXYGENATED
widening of beta-chain
,lower affinity for O2
expels 2,3-DPG
"Relaxed form" of Hgb - (ANSWER)OXYGENATED
beta-chain pulled together
higher affinity for O2
expels 2,3-DPG
"Shift Right" - (ANSWER)higher P50 value
decreased pH (increased H+ ion), acidosis
increased 2,3-DPG
higher temperature
high pCO2
Seen in compensated anemia
"Shift Left" - (ANSWER)lower P50 value
increased pH (decresed H+ ion), alkalosis
decreasede 2,3-DPG
lower temeratures
low pCO2
,Seen in storage of RBC
Type 2 precursor - (ANSWER)Gal-GlcNAc
B1-4
Type 1 precursor - (ANSWER)Gal-GlcNAc
B1-3
Secreted (Se, Le)
Type 2 H antigen transeferase & Sugar - (ANSWER)FUT-1
Alpha-2-L-fucosyltransferase
Fuctose alpha1-2
A antigen transferase & sugar - (ANSWER)D-galactosaminetrasferase
N-acetylgalactosamine alpha1-3
B antigen transferase & sugar - (ANSWER)D-galacotsyltransferase
, galactose alpha1-3
Ax subgroup - (ANSWER)weakly positive anti-A
weakly positive anti-A,B
Am subgroup - (ANSWER)Negative anti-A
Secretes A & H
Ael subgroup - (ANSWER)Negative anti-A
Secretes H only
Highest expression of H
Lowest expression of H - (ANSWER)O>A2>B>A2B>A1>A1B> H deficient
Lewis transferase & Sugar - (ANSWER)FUT-3
Fuctose alpha1-4
Type 1 H antigen transferase & sugar - (ANSWER)FUT-2
Fuctose alpha1-2
