AP BIOLOGY

LABORATORY REVIEW

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what is the lifespan of platelets
A
5-9 days
B
120 days
C
13-12 days
D
1 year
Explanation: 

Detailed explanation-1: -They have multiple functions and a life span of 7–10 days in human. They are produced by megakaryocytes (MKs), mostly in the bone marrow. Around 1011 platelets are produced every day.

Detailed explanation-2: -Life span of platelets is 8-9 days. Platelets, also called thrombocytes, are blood cells, whose function is to stop bleeding.

Detailed explanation-3: -Platelets, also called thrombocytes, are blood cells whose function is to stop bleeding. The average life span of circulating platelets is 7 to 10 days.

Detailed explanation-4: -The lifespan of platelets in circulation is brief, close to 10 days in humans and 5 days in mice. Bone marrow residing megakaryocytes produce around 100 billion platelets per day.

Detailed explanation-5: -A steady platelet supply is ensured by a continuous platelet clearance and production of 1011 platelets daily to maintain levels of 150 000 to 400 000 platelets per microliter of blood.

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