Exam 3 Questions (Blood)

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Human red blood cells survive in circulation for about _____ days.

120

Cellular elements (formed elements) make up about _____ percent of total blood.

45

Blood plasma makes up about _____ percent of total blood.

55%

A person with A-positive blood produces which antibodies?

B antibodies only

A person with B-negative blood could donate blood to a person with:

B-positive AB-negative AB-positive

Which statement correctly describes carbon monoxide (CO) poisoning?

CO is colorless and odorless and toxic at low doses.

Which of the following plasma proteins is important in blood clotting?

Fibrins

What is the approximate life span of a red blood cell?

Four Months

Which statement(s) describe(s) hemoglobin?

It is made up of four protein subunits. It contains heme and iron which help it to bind oxygen. Each red blood cell has hundreds of millions of hemoglobin molecules within it. Without sufficient hemoglobin, anemia will develop.

A person with O-negative blood could receive blood from a person with:

O-negative only

When you spin blood in a centrifuge, what do you call the clear yellow fluid at the top of the centrifuge tube?

Plasma

Which of the following cell types does not have a nucleus?

Red blood cell

Hemolytic disease in the newborn can result when a mother's blood is _______ and the baby's blood is _______.

Rh-negative; Rh-positive

If you could make yourself really tiny so that you could swim around someone's blood stream, and you encountered a macrophage, what do you think you would do?

Turn and run - it might "eat" me.

Anemia is a range of conditions that are caused by not enough oxygen in the blood.

a. Blood loss d. Insufficient red blood cell synthesis e. Not enough iron in the diet

Blood plasma is made up of:

a. proteins b. salts c. waste products of metabolism d. gases like carbon dioxide, nutrients like glucose, and hormones

Hematopoietic stem cells can differentiate into:

all blood cell types

Platelets

assist in blood clotting

eosinophils

attack multicellular parasites

What chemical stimulates the production of new RBCs?

erythropoietin

Which of the following hormones stimulate the production of red blood cells?

erythropoietin

monocytes

form macrophages which engulf and digest (destroy) foreign substances

The ability of the blood to clot is called:

hemostasis

Hematopoiesis: Select the correct order of events.

hypoxia detected by kidneys; kidneys secrete EPO; EPO stimulates RBC synthesis in the red bone marrow

B lymphocytes

make antibodies

Which of the following comprises 70% of all leukocytes?

neutrophils

thrombocytes

platelets

White Blood Cells

provide immune defense

erythrocytes

red blood cells

Hematopoietic stem cells are found in:

red bone marrow

basophils

secrete heparin and histamine during a specific allergic response

neutrophils

the "immediate response" cell

Which of the following statements is/are true of red blood cells?

they are full of hemoglobin they do not have a nucleus or DNA they are among our smallest cells

Plasma proteins are important because:

they help maintain osmotic balance and pH they assist in blood clotting

red blood cells

transport oxygen throughout the body

leukocytes

white blood cells


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