Atlas of plant and animal histology

Choose true or false. Each right answer scores 1, and each wrong answer scores -1. Not answered questions score 0.

1) Erythrocytes are white cells.

2) Platelets are nucleated cells.

3) Erythrocytes are the most abundant cell type in the blood.

4) Blood cells are derived from cells found in the bone marrow.

5) After blood centrifugation, erythrocytes form a layer above the layer of leukocytes.

6) The hematocrit is the volume of erythrocytes in the total blood volume.

7) The red color of blood is provided by the iron present in the erythrocytes.

8) In mammals, erythrocytes are nucleated cells.

9) Megakaryocytes are the cells that produce platelets.

10) Granular leukocytes are neutrophils, basophils, and eosinophils.

11) The most abundant granular leukocytes are basophils.

12) The nuclei of neutrophils are bi-lobed.

13) Lymphocytes are agranular leukocytes.

14) Monocytes release antibodies.

15) Blood cells are in a permanent renewing process.

16) Macrophages found in tissues derive from blood monocytes.

17) Hematopoiesis is initiated at the beginning of the postnatal period.

18) Eosinophils contain bluish granules in the cytoplasm.

19) Plasma is the liquid component of blood.

20) Fibrinogen is the most abundant protein in the plasma.