Q1. The bus was going to Nagpur in that the bus came and crash to another bus. In this accident 15 people were injured. Many persons got fracture in their bones and few people had excessive bleeding, required blood transfusion. Now answers the questions (a) A person met with this accident in which two long bones of the hand were dislocated. What could be the reason? (b) Excessive bleeding required blood transfusion. Why? (c) Why blood is bright red?
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(a) The person must had his hand at the front holding something. The excessive pressure by the opposite force affected the bone in the hand causing it to crack and change it's position.
(b) Due to loss of excessive blood the body will lose RBC, WBC, platelets and haemoglobin too. These are much needed substances for our body.
That's why blood transfusion is required to regain the lost plasma.
(c) Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream.
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