Exam 3 Questions (Blood)
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
