Anatomy and Physiology Final Review

The main purpose of Red Blood Cells is to 

• carry gases, wastes, and nutrients

• attack and destroy pathogens

• clot the blood

• digest food

Answer explanation

The main purpose of Red Blood Cells is to carry gases, wastes, and nutrients, not to attack pathogens, clot blood, or digest food.

What part of blood carries hemoglobin?

• Red blood cells

• Plasma

• Platlets

• White blood cells

Answer explanation

Red blood cells carry hemoglobin, which is responsible for transporting oxygen in the blood.

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

• cyanosis

• anemia

• hemochromatosis

• hypoxia

Answer explanation

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

What is the function of hemoglobin?

• to carry iron

• to carry wastes

• to carry oxygen

• to produce oxygen

Answer explanation

The function of hemoglobin is to carry oxygen, not iron, wastes, or produce oxygen.

Another name for platelets is...?

• erythrocytes

• plasmocytes

• leukocytes

• thrombocytes

Answer explanation

Platelets are also known as thrombocytes, which are responsible for blood clotting. Erythrocytes are red blood cells, plasmocytes are a type of white blood cell, and leukocytes are white blood cells.

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

Answer explanation

The correct choice is 'to provide structure' because blood's primary functions do not include providing structural support.

Blood is classified as ___ tissue.

• connective

• circulatory

• epithelial

• muscular

Answer explanation

Blood is classified as connective tissue because it connects and supports other tissues in the body.

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

Answer explanation

Blood becomes bright red in color because of the amount of oxygen 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

Answer explanation

Sickle cell anemia is caused by a genetic abnormality in the amino acids.

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

Answer explanation

The shape of the RBC allows for a greater surface area, facilitating the exchange of gases more quickly due to increased contact with the surrounding environment.