Blood: 12.2 Questions - Group 1

Question 1

Where would one normally find erythrocytes?

Answer 1

In the bloodstream.

Question 2

The blood is important in picking up oxygen from the lungs in ____________ circulation.

Answer 2

Pulmonary

Question 3

Oxygen is transported to the tissue cells via the ___________________ circulation.

Answer 3

Systemic

Question 4

What formed element of the blood is responsible for “picking up” oxygen from the lungs?

Answer 4

Erythrocytes

Question 5

What formed element of the blood is responsible for transporting oxygen?

Answer 5

Erythrocytes transport oxygen to the systemic tissues.

Question 6

Red blood cells lack a nucleus.
True or False.

Answer 6

True

Question 7

The term “anucleated” means without a __________.

Answer 7

Nucleus

Question 8

The term “biconcave” shape is used with which formed element?

Answer 8

RBCs

Question 9

The biconcave shape due to a lack of nucleus allows the red blood cells to ___________ and travel through the tiny capillaries.

Answer 9

Bend (fold over)

Question 10

What mineral is found in hemoglobin?

Answer 10

iron

Question 11

How many molecules of oxygen can one hemoglobin molecule hold?

Answer 11

Up to four (4)

Question 12

Where would one normally find immature red blood cells?

Answer 12

In the red bone marrow

Question 13

Where are red blood cells made?

Answer 13

In the red bone marrow

Question 14

Where is hemoglobin normally located?

Answer 14

Inside the erythrocytes

Question 15

What is the most abundant formed element?

Answer 15

Erythrocytes

Question 16

What are the three reasons that adult men have higher rbc count than adult females?

Answer 16

• Testosterone increases rbc’s; estrogen
does not.
• Females lose rbcs monthly in
menstruation.
• Fetal demands for iron during
pregnancy.

Question 17

Can erythrocytes undergo mitosis or repair themselves?

Answer 17

No, they lack a nucleus so no DNA (genetic plans to make a new rbc or repair it).

Question 18

What binds to the iron atom in hemoglobin?

Answer 18

Oxygen

Question 19

Fully saturated hemoglobin would hold _______ molecules of oxygen.

Answer 19

Four (4)

Question 20

Can low levels of iron cause a type of anemia?

Answer 20

Yes. The condition is called iron deficiency anemia

Question 21

What is released when red blood cells are hemolyzed?

Answer 21

Hemoglobin molecules

Question 22

What gives arterial blood the red color?

Answer 22

Hemoglobin molecules when they are loaded with oxygen. This oxidizes the iron atoms. (NOTE: rust is oxidized iron.)

Question 23

What gives venous blood the bluish-purple color?

Answer 23

Hemoglobin molecules that have unloaded some of their oxygen.

Question 24

The color of blood is due to what molecule?

Answer 24

Hemoglobin