Question

what is blood ? what is the function of blood platelets

Answer 1

$\huge\purple{As-Salamu-Alykum}$

________

$\huge\orange{Blood :}$

Blood is a fluid that carries substances (Oxygen , nutrients ) to all parts of body

$\huge\pink{Types\;of\; blood : }$

● Red blood cells

● White blood cells

● Plateletes

$\huge\blue{Red \;blood \;cells : }$

》Mature RBC doesn't have nucleus

》It contains haemoglobin

》Carries blood to every cell of body

》Have 574 Amino acids

》Contain 4 chains

▪2 Alpha (each of 141 Amino acid)

▪2 beta (each of 146 amino acids )

》Contain Fe at center .

》Life span is about 120 days

$\huge\green{White\; blood \;cells }$

》It contains a nucleus

》It cause immunity.

》Largest white blood cell is Macrophage

》WBC are produced by bone marrow

》Trillions of White Blood cells are produced everyday

》Life span of WBC is about a day .

$\huge\red{Plateletes : }$

》Type of blood cells

》Helps in blood cloting

__________

$\huge\pink{INSHALLAH\;it\;will\;help\;U}$

Answer 2

Blood -

➡️Blood is a connective tissue .

➡️It is a fluid tissue

➡️It consists of a liquid part called plasma.

Plasma

➡️It is non living and is composed of proteins.

➡️Three kinds of blood cells are suspended in the blood plasma.

a. Red Blood Cells

b White Blood cells

c. Platelets

Platelets

➡️Also called thrombocytes.

➡️Helps in blood clotting (function)