The Roles of Blood

Blood brings ... and ... to all parts of the body so they can keep working.

• oxygen; carbon dioxide

• oxygen; nutrients

• carbon dioxide; waste

• carbon dioxide; nutrients

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Blood carries ... and ... to the lungs, kidneys, and digestive system to be removed from the body.

• oxygen; carbon dioxide

• oxygen; nutrients

• carbon dioxide; waste materials

• carbon dioxide; nutrients

Blood serves to prevent diseases caused by microorganisms by fighting them. This states blood plays a role as ....

• lymph system

• respiratory system

• digestive system

• immune system

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Blood is made up of ....

• blood cells and plasma

• blood cells and blood vessels

• plasma and heart

• plasma and blood vessels

Plasma is ...

• a yellowish solid that has nutrients, proteins, hormones, and waste products.

• a yellowish fluid that has nutrients, proteins, hormones, and waste products.

• a clear liquid that makes up most of the blood.

• a clear solid that makes up most of the blood.

The right characteristics of Red Blood Cells are ....

• contains of hemoglobin, the lifetime up to 4 months, have nucleus

• biconcave shape, not elastic, have large surface are

• have no nucleus, contains of hemoglobin, biconcave shape

• elastic, concave shape, the lifetime up to 3 months

Red Blood Cells contain hemoglobin. What's hemoglobin?

• a red pigment that makes red color in the cells and have function to carry nutrients from the lungs.

• a red pigment that makes red color in the cells and have function to carry the other waste materials to the lungs.

• a red pigment that makes red color in the cells and have function to carry carbon dioxide to the lungs.

• a red pigment that makes red color in the cells and have function to carry oxygen from the lungs.

Each day, the body makes new Red Blood Cells to replace those that die or are lost from the body. Red Blood Cells are made in the bone marrow.

• True

• False

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... are a key part of the immune system.

• Plasma

• Platelets

• Red Blood Cells

• White Blood Cells

Blood contains far fewer White Blood Cells than Red Blood Cells.

• True

• False