BIOS 255 Test Questions and Answers | 2026
Update | 100% Correct.
components of blood
plasma, red and white blood cells, platelets
functions of formed elements
Red cells carry oxygen from lungs to tissue
White cells defend against foreign materials
Platelets are found in bone marrow and play a role in blood clotting
plasma
Fluid portion of blood
formed elements
blood cells and platelets
Function of white blood cells
protect body from infection; regulates the function of other immune cells
function of red blood cells
Gain o2 lungs; delivers to tissues
Gain CO2 tissues; deliver to lungs
function of platelets
, blood clotting
Function of white blood cells
protect body from infection; regulates the function of other immune cells
Iron in your body is transported by
transferrin
hormone that increases red blood cells
erythropoietin
vitamin that plays a role in anemia
B6
A
B12
blood flow through the heart
1) Superior vena cava, Inferior vena cava, and Coronary sinus (No O2)
2) Blood enters right atrium
3)Right atrium contracts and sends blood through the Tricuspid valve
After passing through the Tricuspid valve the blood enters the Right ventricle
4) Right ventricle contracts and sends blood through the Pulmonary valve into the Pulmonary
Update | 100% Correct.
components of blood
plasma, red and white blood cells, platelets
functions of formed elements
Red cells carry oxygen from lungs to tissue
White cells defend against foreign materials
Platelets are found in bone marrow and play a role in blood clotting
plasma
Fluid portion of blood
formed elements
blood cells and platelets
Function of white blood cells
protect body from infection; regulates the function of other immune cells
function of red blood cells
Gain o2 lungs; delivers to tissues
Gain CO2 tissues; deliver to lungs
function of platelets
, blood clotting
Function of white blood cells
protect body from infection; regulates the function of other immune cells
Iron in your body is transported by
transferrin
hormone that increases red blood cells
erythropoietin
vitamin that plays a role in anemia
B6
A
B12
blood flow through the heart
1) Superior vena cava, Inferior vena cava, and Coronary sinus (No O2)
2) Blood enters right atrium
3)Right atrium contracts and sends blood through the Tricuspid valve
After passing through the Tricuspid valve the blood enters the Right ventricle
4) Right ventricle contracts and sends blood through the Pulmonary valve into the Pulmonary
