Multiple Choice Questions on Blood. Human Anatomy : Blood - Cells, Plasma, Circulation. Biology gk Blood related Questions and Answer. Blood is basic to life. Blood courses through our body and conveys fundamental substances like oxygen and supplements to the body's cells. It additionally transports metabolic waste items from those equivalent cells. There is not a viable replacement for blood. It can't be made or fabricated. Liberal blood contributors are the main wellspring of blood for patients needing a blood transfusion. Blood Components - There are four basic components that comprise human blood: plasma, red blood cells, white blood cells and platelets. Red Blood Cells - Red platelets speak to 40%-45% of your blood volume. They are created from your bone marrow at a rate of four to five billion every hour. They have a lifecycle of around 120 days in the body. Platelets - Platelets are an astonishing piece of your blood. Platelets are the littlest of our platelets and actually look like little plates in their non-dynamic structure. Platelets control dying. Wherever an injury happens, the vein will convey a sign. Platelets get that sign and travel to the territory and change into their "dynamic" development, becoming long arms to reach the vessel and structure groups to plug the injury until it mends. Plasma - Plasma is the fluid part of your blood. Plasma is yellowish in shading and is made up for the most part of water, yet it likewise contains proteins, sugars, hormones and salts. It transports water and supplements to your body's tissues. White Blood Cells - Albeit white platelets (leukocytes) represent about 1% of your blood, they are significant. White platelets are basic for good wellbeing and security against sickness and malady. Like red platelets, they are always being produced from your bone marrow. They move through the circulatory system and assault remote bodies, as infections and microbes. They can even leave the circulation system to broaden the battle into tissue.