structure of blood

The main purpose of Red Blood Cells is to 

• carry gases, wastes, and nutrients
• attack and destroy pathogens
• clot the blood
• digest food

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The lack of sufficient red blood cells in the blood system is called

• cyanosis
• anemia
• hemochromatosis
• hypoxia

What is the function of hemoglobin?

• to carry iron
• to carry wastes
• to carry oxygen
• to produce oxygen

Another name for white blood cells is

• erythrocytes
• plasmocytes
• leukocytes
• thrombocytes

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Which of the following is not a primary function of blood?

• help fight disease
• transports nutrients, oxygen, wastes, and hormones
• to provide structure 
• distributes heat

Blood is classified as ___ tissue.

• connective
• circulatory
• epithelial
• muscular

Blood becomes bright red in color because of the

• amount of folic acid present
• amount of hemoglobin present
• amount of oxygen present
• amount of iron present

Sickle cell anemia is caused by 

• a lack of red blood cells
• a genetic abnormality in the amino acids
• lack of available oxygen
• too much iron in the circulatory system

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The shape of the RBC allows for a greater surface area so the cell can

• fit through capillaries easily
• exchange gasses more quickly
• hold additional hemoglobin
• reproduce quicker

Where does hematopoiesis take place, producing new RBCs?

• red bone marrow
• yellow bone marrow
• synovial membrane
• articular cartilage