Bio 139 KCTCS- Exam 1 |133 Questions with Solutions
What are the three functions of RBC? - -Transportation, Regulation, and Protection
-What do RBCs Transport? - -Gases (Oxygen and Carbon Dioxide)
Nutrients/Waste
Hormone
-What do RBCs Regulate? - -Body Temp
Body pH
Fluid Balance
-What do RBCs Protect against? - -Bleeding/Trauma
Infection/Invasion
-Describe separated blood - -
-Hematocrit - -the ratio of the volume of red blood cells to the total volume of blood
-Normal hematocrit value - -42% - 47%
-Normal pH of Blood - -7.35-7.45
-Adult blood volume - -5 liters
-Why does the color of blood vary - -Oxygen Saturation
-What component of blood contributes the most to blood viscosity - -Erythrocytes (RBC)
-The diffusion of water across a selectively permeable membrane is called - -Osmosis
-Plasma - -55% of blood
-What % of plasma is water? - -92%
-What % of plasma is protein? - -7%
-What % of plasma is other solutes? - -1%
-proteins in plasma - -albumins 58%
globulins 37%
fibrinogen 4%
regulatory proteins <1%
-solutes in blood plasma - --waste (urea & ammonia)
, -electrolytes (salts dissolved in solution)
-organic nutrients (lipids, glucose, amino acids)
-respiratory gases
-Erythrocytes - -RBC
NO Nucleus
NO mitochondria or organelles
-Structure of RBC - -Small and highly specialized discs
Thin in middle and thicker at edge
-RBCs in whole blood - -
-Main function of RBCs - -Carry Oxygen
-Hemoglobin - -An iron-containing protein in red blood cells that reversibly binds oxygen.
-How much iron is in a single heme group? - -
-Each RBC contains how many hemoglobin molecules? - -280 million
-Each RBC can carry ___ O2 molecules. - -
-Hemoglobin and carbon dioxide complex - -
-What part of Hb does carbon dioxide bind to? - -Globulin Molecule
-Hematopoiesis - -blood cell formation
-Erythropoiesis - -production of red blood cells
-Erythropoiesis steps - -Hemocytoblast (stem cell) -> *erythropoietin acts on stem cells*
and makes -> proerythroblast (committed cell) -> basophilic erythroblast -> polychromatic
erythroblast -> orthochromatic erythroblast (aka a *normoblast*)(*nucleus leaves here*) -
> reticulocyte -> erythrocyte
-Organ responsible for stimulating RBC production - -Kidney
-Erythropoietin (EPO) - -hormone secreted by the kidney to stimulate the production of
red blood cells by bone marrow
-What causes EPO to be released? - -Decrease in oxygen in blood
-Reticulocyte count - -measurement of the number of circulating reticulocytes, immature
erythrocytes in a blood specimen
What are the three functions of RBC? - -Transportation, Regulation, and Protection
-What do RBCs Transport? - -Gases (Oxygen and Carbon Dioxide)
Nutrients/Waste
Hormone
-What do RBCs Regulate? - -Body Temp
Body pH
Fluid Balance
-What do RBCs Protect against? - -Bleeding/Trauma
Infection/Invasion
-Describe separated blood - -
-Hematocrit - -the ratio of the volume of red blood cells to the total volume of blood
-Normal hematocrit value - -42% - 47%
-Normal pH of Blood - -7.35-7.45
-Adult blood volume - -5 liters
-Why does the color of blood vary - -Oxygen Saturation
-What component of blood contributes the most to blood viscosity - -Erythrocytes (RBC)
-The diffusion of water across a selectively permeable membrane is called - -Osmosis
-Plasma - -55% of blood
-What % of plasma is water? - -92%
-What % of plasma is protein? - -7%
-What % of plasma is other solutes? - -1%
-proteins in plasma - -albumins 58%
globulins 37%
fibrinogen 4%
regulatory proteins <1%
-solutes in blood plasma - --waste (urea & ammonia)
, -electrolytes (salts dissolved in solution)
-organic nutrients (lipids, glucose, amino acids)
-respiratory gases
-Erythrocytes - -RBC
NO Nucleus
NO mitochondria or organelles
-Structure of RBC - -Small and highly specialized discs
Thin in middle and thicker at edge
-RBCs in whole blood - -
-Main function of RBCs - -Carry Oxygen
-Hemoglobin - -An iron-containing protein in red blood cells that reversibly binds oxygen.
-How much iron is in a single heme group? - -
-Each RBC contains how many hemoglobin molecules? - -280 million
-Each RBC can carry ___ O2 molecules. - -
-Hemoglobin and carbon dioxide complex - -
-What part of Hb does carbon dioxide bind to? - -Globulin Molecule
-Hematopoiesis - -blood cell formation
-Erythropoiesis - -production of red blood cells
-Erythropoiesis steps - -Hemocytoblast (stem cell) -> *erythropoietin acts on stem cells*
and makes -> proerythroblast (committed cell) -> basophilic erythroblast -> polychromatic
erythroblast -> orthochromatic erythroblast (aka a *normoblast*)(*nucleus leaves here*) -
> reticulocyte -> erythrocyte
-Organ responsible for stimulating RBC production - -Kidney
-Erythropoietin (EPO) - -hormone secreted by the kidney to stimulate the production of
red blood cells by bone marrow
-What causes EPO to be released? - -Decrease in oxygen in blood
-Reticulocyte count - -measurement of the number of circulating reticulocytes, immature
erythrocytes in a blood specimen
