Deck 7: Blood and Bone Marrow

Question 1

A red blood cell,visualized in a blood smear,appears to stain less intensely in the center of the cell than at the periphery.This light staining central region results from:

A) A centrally located Golgi apparatus
B) A greater accumulation of hemoglobin within the center of the cell
C) A pale-staining nucleus
D) An attenuation of the cytoplasm caused by the biconcave disk shape of the cell
E) Lipid droplets

Answer 1

D

Question 2

The brick red-staining secretory granules of an eosinophil contain:

A) Histamine and heparin
B) Immunoglobulin
C) Major basic protein
D) Serotonin
E) Tumor necrosis factor

Answer 2

C

Question 3

Blood-borne platelets are derived from which type of bone marrow cell?

A) Eosinophilic myelocytes
B) Macrophages
C) Megakaryocytes
D) Normoblasts
E) Polychromatophilic erythroblasts

Answer 3

C

Question 4

Which cell has a very small,darkly staining nucleus?

A) Erythrocyte
B) Normoblast
C) Polychromatophilic erythroblast
D) Proerythroblast
E) Reticulocyte

Question 5

A monocyte circulating in the blood:

A) Exits the blood to differentiate into a macrophage in connective tissue
B) Is approximately 10 micrometers in diameter
C) Is specialized for attacking and destroying parasitic larvae
D) Possesses a small,round,dark-staining nucleus
E) Possesses numerous,intensely stained secretion granules in the cytoplasm

Question 6

A component of blood cells called a Barr body represents a(n):

A) Aggregation of ribosomes in reticulocytes
B) Clump of polymerized hemoglobin
C) Cytoplasmic inclusion found in eosinophils
D) Enlarged phagocytic vesicle found in neutrophils
E) Inactivated X chromosome extending from the nucleus in neutrophils

Question 7

Which blood cell typically possesses a nucleus with two to three lobes and a pale-staining cytoplasm?

A) Basophil
B) Eosinophil
C) Lymphocyte
D) Monocyte
E) Neutrophil

Question 8

Which blood cell possesses numerous receptors for immunoglobulin E in its plasma membrane?

A) Basophil
B) Eosinophil
C) Lymphocyte
D) Monocyte
E) Neutrophil