Why can even a small injury become serious when platelet count is very low?
Answer and explanation
Correct answer: Blood clotting will be difficult
The governing concept is clot formation during blood clotting. When a blood vessel is damaged, platelets collect at the wound and help form a temporary plug; clotting proteins then strengthen it, limiting blood loss. If platelet numbers are very low, this initial plug forms poorly or slowly, so bleeding may continue even after a small injury. Therefore option A is correct. The remaining options do not describe platelet function or consequences of low platelet count.
Frequently asked questions
What is the correct answer to this question?
Blood clotting will be difficult
Why is this the correct answer?
The governing concept is clot formation during blood clotting. When a blood vessel is damaged, platelets collect at the wound and help form a temporary plug; clotting proteins then strengthen it, limiting blood loss. If platelet numbers are very low, this initial plug forms poorly or slowly, so bleeding may continue even after a small injury. Therefore option A is correct. The remaining options do not describe platelet function or consequences of low platelet count.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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