Q: 273 (SSC/NA)
question_subject:
Science
question_exam:
SSC
stats:
0,5,6,2,1,3,5
keywords:
{'blood platelets': [2, 0, 0, 0], 'thrombocytes': [2, 0, 0, 1], 'prominent nuclei': [1, 0, 0, 0], 'phagocytosis': [1, 0, 1, 2], 'haemoglobin': [10, 1, 0, 2], 'pigment': [4, 0, 3, 1]}
Option 1 is incorrect as blood platelets do not have prominent nuclei. They are actually small cell fragments that are formed from megakaryocytes in the bone marrow.
Option 2 is incorrect as blood platelets are not involved in phagocytosis. Their main function is in blood clotting to prevent excessive bleeding.
Option 3 is incorrect as blood platelets do not contain haemoglobin. Haemoglobin is found in red blood cells and is responsible for carrying oxygen.
Option 4 is correct. Blood platelets are also known as thrombocytes. They play a crucial role in blood clotting by forming a plug at the site of injury and releasing chemical signals to help promote clotting.