PNB 2265 Exam 1 questions 2026
Exam Questions and verified Answers
What kind of tissue is blood? - CORRECT ANSWERS Fluid connective tissue
What is hemostasis? - CORRECT ANSWERS Blood clotting
What is plasma made up of? - CORRECT ANSWERS Primarily water
What is the supernatent of blood? - CORRECT ANSWERS Plasma
What is the pellet in blood? - CORRECT ANSWERS Red blood cells
Thrombocytes - CORRECT ANSWERS Platelets
Leukocytes - CORRECT ANSWERS White blood cells
Erythrocytes - CORRECT ANSWERS Red blood cells
Hematocrit - CORRECT ANSWERS Measurement of the percentage of red blood cells in blood
composition
Where are the white blood cells and platelets found in a hematocrit? - CORRECT ANSWERS
Buffy coat
What does HBG stand for in CBC? - CORRECT ANSWERS Hemoglobin
,What does MCV measure? - CORRECT ANSWERS Mean corpuscular volume of red blood
cells
What are the subtypes of WBC? - CORRECT ANSWERS neutrophils
lymphocytes
monocytes
eosinophils
basophils
What type of WBC do you look for to be abnormal for HIV? - CORRECT ANSWERS
Lymphocytes
What is a mnemonic to remember WBC in descending proportion? - CORRECT ANSWERS
Never let monkeys eat bananas
What is the most abundant formed element in blood? - CORRECT ANSWERS Red blood cells
Describe the structure/function relationship in red blood cells - CORRECT ANSWERS Red
blood cells are biconcave because they lack a nucleus and organelles. This shape maximizes the space
for CO2 and O2 to diffuse. This shape also allows for efficient movement through blood vessels.
What unit is hemoglobin measured in? - CORRECT ANSWERS grams/deciliter
How many protein subunits make up hemoglobin? - CORRECT ANSWERS 4
What chains are in adult hemoglobin? - CORRECT ANSWERS 2 beta chains and 2 alpha chains
, What chains are in fetal hemoglobin? - CORRECT ANSWERS 2 alpha chains and 2 gamma
chains `
How many heme groups on in hemoglobin? - CORRECT ANSWERS 4, one on each chain
Where does oxygen bind to? - CORRECT ANSWERS The iron in the heme group on
hemoglobin
What is the hemoglobin chain called when nothing is bound to it? - CORRECT ANSWERS
Deoxyhemoglobin
What is the hemoglobin chain called when oxygen is bound to it? - CORRECT ANSWERS
Oxyhemoglobin
What is the hemoglobin chain called when carbon dioxide is bound to it? - CORRECT ANSWERS
Carabino-hemoglobin
Is the binding of gas to each hemoglobin chain independent? - CORRECT ANSWERS No,
there is cooperative binding that occurs because when a gas binds to the chain, it changes shape
What are two examples of cooperative binding? - CORRECT ANSWERS Bohr and Haldan
effect
Haldan Effect - CORRECT ANSWERS It is easier for CO2 to bind to hemoglobin if it does not
have oxygen bound to it. This ensures that RBC can remove CO2 from tissues after it delivers oxygen.
Bohr Effect - CORRECT ANSWERS CO2 binding facilitates the release of oxygen. This makes it
easier to release oxygen to tissue when the hemoglobin gets CO2. This is useful for offloading oxygen
Exam Questions and verified Answers
What kind of tissue is blood? - CORRECT ANSWERS Fluid connective tissue
What is hemostasis? - CORRECT ANSWERS Blood clotting
What is plasma made up of? - CORRECT ANSWERS Primarily water
What is the supernatent of blood? - CORRECT ANSWERS Plasma
What is the pellet in blood? - CORRECT ANSWERS Red blood cells
Thrombocytes - CORRECT ANSWERS Platelets
Leukocytes - CORRECT ANSWERS White blood cells
Erythrocytes - CORRECT ANSWERS Red blood cells
Hematocrit - CORRECT ANSWERS Measurement of the percentage of red blood cells in blood
composition
Where are the white blood cells and platelets found in a hematocrit? - CORRECT ANSWERS
Buffy coat
What does HBG stand for in CBC? - CORRECT ANSWERS Hemoglobin
,What does MCV measure? - CORRECT ANSWERS Mean corpuscular volume of red blood
cells
What are the subtypes of WBC? - CORRECT ANSWERS neutrophils
lymphocytes
monocytes
eosinophils
basophils
What type of WBC do you look for to be abnormal for HIV? - CORRECT ANSWERS
Lymphocytes
What is a mnemonic to remember WBC in descending proportion? - CORRECT ANSWERS
Never let monkeys eat bananas
What is the most abundant formed element in blood? - CORRECT ANSWERS Red blood cells
Describe the structure/function relationship in red blood cells - CORRECT ANSWERS Red
blood cells are biconcave because they lack a nucleus and organelles. This shape maximizes the space
for CO2 and O2 to diffuse. This shape also allows for efficient movement through blood vessels.
What unit is hemoglobin measured in? - CORRECT ANSWERS grams/deciliter
How many protein subunits make up hemoglobin? - CORRECT ANSWERS 4
What chains are in adult hemoglobin? - CORRECT ANSWERS 2 beta chains and 2 alpha chains
, What chains are in fetal hemoglobin? - CORRECT ANSWERS 2 alpha chains and 2 gamma
chains `
How many heme groups on in hemoglobin? - CORRECT ANSWERS 4, one on each chain
Where does oxygen bind to? - CORRECT ANSWERS The iron in the heme group on
hemoglobin
What is the hemoglobin chain called when nothing is bound to it? - CORRECT ANSWERS
Deoxyhemoglobin
What is the hemoglobin chain called when oxygen is bound to it? - CORRECT ANSWERS
Oxyhemoglobin
What is the hemoglobin chain called when carbon dioxide is bound to it? - CORRECT ANSWERS
Carabino-hemoglobin
Is the binding of gas to each hemoglobin chain independent? - CORRECT ANSWERS No,
there is cooperative binding that occurs because when a gas binds to the chain, it changes shape
What are two examples of cooperative binding? - CORRECT ANSWERS Bohr and Haldan
effect
Haldan Effect - CORRECT ANSWERS It is easier for CO2 to bind to hemoglobin if it does not
have oxygen bound to it. This ensures that RBC can remove CO2 from tissues after it delivers oxygen.
Bohr Effect - CORRECT ANSWERS CO2 binding facilitates the release of oxygen. This makes it
easier to release oxygen to tissue when the hemoglobin gets CO2. This is useful for offloading oxygen
