Blood Basics

Which of these makes up the greatest portion of whole blood by volume?

• erythrocytes

• leukocytes

• plasma

• platelets

What is a hematocrit?

• A hematocrit is the percentage of leukocytes and platelets in a whole blood sample

• A hematocrit is the percentage of erythrocytes in a whole blood sample.  

• A hematocrit is the percentage of all formed elements in a whole blood sample

• A hematocrit is the percentage of plasma in a whole blood sample.        

Which of the following is true of the structure of an erythrocyte?

• Erythrocytes can bend and twist to fit through vessels

• Erythrocytes are larger than other cells in the blood.

• Erythrocytes are cell fragments

• Erythrocytes are nucleated cells.

What is the name of the protein found in erythrocytes that transports respiratory gases and provides the red color?

• hemoglobin

• antibody

• fibrinogen

• albumin

Tags

NGSS.HS-LS2-5

What triggers erythropoietin (EPO) release that leads to the production of new red blood cells?

• excess oxygen in the bloodstream  

• reduced availability of oxygen

• too many platelets  

• a high hematocrit    

Tags

NGSS.HS-LS1-3

How many oxygen molecules can be transported by one hemoglobin molecule?

• two

• four

• eight

Erythropoietin (EPO) stimulates the developmental process shown here. What part of the body does erythropoietin (EPO) target to increase erythropoiesis?

• bone marrow

• lungs

• liver

• kidneys

Tags

NGSS.HS-LS1-3

NGSS.HS-LS1-4

Which image shows the type of leukocyte responsible for antibody production?

• D

• B

• E

• C

Identify the leukocytes in the figure in order.

• eosinophil, neutrophil, monocyte, basophil, lymphocyte

• neutrophil, basophil, eosinophil, monocyte, lymphocyte

• monocyte, eosinophil, lymphocyte, lymphocyte, neutrophil  

• neutrophil, eosinophil, basophil, lymphocyte, monocyte

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Which formed element can be described as cytoplasmic fragments?

• platelets

• monocytes

• erythrocytes

• megakaryocytes