4 р
1) What is Blood? State the
components of blood and
write the function of each of
*
them.
Your answer
Answers
Answer:
Blood is a red colour connective tissue that circulates in our body. Blood has an extra-cellular matrix called plasma, where red blood cells, white blood cells and platelets float. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues.
It has four main components: plasma, red blood cells, white blood cells, and platelets.
Plasma
The liquid state of blood can be contributed to plasma as it makes up ~55% of blood. It is pale yellow in colour and when separated, it consists of salts, nutrients, water and enzymes. Blood plasma also contains important proteins and other components necessary for overall health. Hence, blood plasma transfusions are given to patients with liver failure and life-threatening injuries.
Red Blood Cells (RBC)
Red blood cells consist of Haemoglobin, a protein. They are produced by the bone marrow to primarily carry oxygen to the body and carbon dioxide away from it.
White Blood Cells (WBC)
White blood cells are responsible for fighting foreign pathogens (such as bacteria, viruses, fungi) that enter our body. They circulate throughout our body and originate from the bone marrow.
Platelets
Tiny disc-shaped cells that help regulate blood flow when any part of the body is damaged, thereby aiding in fast recovery through clotting of blood.
Explanation:
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