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Question
Which one of the following is not a true cell?
Which one of the following is not a true cell?
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Solution
The correct option is D Platelets
Monocytes are the largest of all leukocytes and form a part of the innate immune system. They have bean-shaped nuclei.
Red blood corpuscles or erythrocytes, rich in haemoglobin carry oxygen to different tissues. They lack nucleus at maturity.
Neutrophils are phagocytic leukocytes contributing to innate immunity. They have a nucleus divided into 25 lobes.
Platelets are devoid of the nucleus. They are fragments of cytoplasm which are derived from the megakaryocyte of the bone marrow. Hence they are not considered as true cells.
Hence, the answer is (D) Platelets.
Monocytes are the largest of all leukocytes and form a part of the innate immune system. They have bean-shaped nuclei.
Red blood corpuscles or erythrocytes, rich in haemoglobin carry oxygen to different tissues. They lack nucleus at maturity.
Neutrophils are phagocytic leukocytes contributing to innate immunity. They have a nucleus divided into 25 lobes.
Platelets are devoid of the nucleus. They are fragments of cytoplasm which are derived from the megakaryocyte of the bone marrow. Hence they are not considered as true cells.
Hence, the answer is (D) Platelets.
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