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Question 295
Physiology → Haematology
Classification
Question
SSBAOptions
Explanation
Mature erythrocytes lack mitochondria as well as a nucleus, DNA and Golgi apparatus. Their energy requirements are met through glycolysis; therefore inhibition of mitochondrial ATP production would not directly remove their stated mechanism of energy production.
Option Validity
B) Neutrophils are nucleated white blood cells rather than mature anucleate erythrocytes. assigns glycolytic energy production in the absence of mitochondria to red blood cells.
C) Eosinophils are granulocytic white blood cells with a bilobed nucleus and characteristic cytoplasmic granules. They are not identified as cells lacking mitochondria.
D) Monocytes are large nucleated leucocytes with abundant cytoplasm and later become tissue macrophages. They do not have the organelle-deficient structure described for mature erythrocytes.
E) Lymphocytes are nucleated leucocytes responsible for cellular or humoral immunity. does not describe them as lacking mitochondria.
Further Reading
Saxena. Textbook for MRCOG-1. Physiology - Haematology - Red Blood Cells, p.67.