Towards the End of Erythropoiesis in the Bone Marrow,a Red

question 81

Multiple Choice

Towards the end of erythropoiesis in the bone marrow,a red blood cell loses its nucleus and becomes a

• A)proerythroblast.
• B)megakaryocyte.
• C)progenitor cell.
• D)mature erythrocyte.
• E)reticulocyte.

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Definitions:

Lubricity

The property of a substance that reduces friction between surfaces in motion.

Boil Temperatures

The temperatures at which liquids change to gases, varying with the atmospheric pressure and the chemical composition of the liquid.

Ring Gear Tooth

A tooth on the outer edge of a ring gear, engaged by the pinion gear to transmit torque in a differential.

Top Land

The uppermost portion of a piston in an internal combustion engine, situated above the top piston ring and playing a key role in sealing combustion gases.