Exam Questions and CORRECT Answers
Functions of Blood - CORRECT ANSWER - - Deliver nutrients from digestive tract to
body tissues
- Carries O2 from lungs to tissues
- Carries CO2 from tissues to lungs so it can be released from the body
- Carries waste products from tissues to kidneys to be excreted out in urine
- Temp. control - transports heat from deep tissues to surface
- Water balance - Conserves fluid and releases excess fluid
- pH regulation
- clotting factors
- defense from disease and ability
Components of whole blood - CORRECT ANSWER - Plasma
Erythrocytes
Leukocytes
Plasma - CORRECT ANSWER - Fluid portion of blood
What is plasma made up of? - CORRECT ANSWER - 90% water
10% dissolved solids
What are some dissolved solids that make up part of plasma? - CORRECT ANSWER -
electrolytes, hormones, proteins, etc.
Function of Plasma - CORRECT ANSWER - Bathe all cells in body and protect them
from external environment. Acts as a buffer to stabilize pH. They help cells stay moist and keep
them moving like a water slide.
,Plasma Proteins - CORRECT ANSWER - Albumin
Globulin
Function of Plasma Proteins - CORRECT ANSWER - Transportation, clotting, immune
response, and buffering (helps prevent changes in pH)
Albumin - CORRECT ANSWER - Most abundant and produced by the liver. This is a
large molecule that cannot pass through vessel walls which aids in keeping fluid inside vascular
system. Also important in helping to bind and transport "stuff". ex: UPS driver
Two types of Globulin - CORRECT ANSWER - Alpha/Beta
Gamma
Alpha/Beta Globulin - CORRECT ANSWER - Produced in liver. transporters.
Fibrinogen - CORRECT ANSWER - A beta globulin that is essential for blood clotting.
Gamma Globulin - CORRECT ANSWER - AKA: "imminuglobulins" Only glob NOT
produced in liver. Produced by plasma cells. Helps with immunity and resistance to disease. Also
provides immune response antibodies to react against antigens such as bacteria or foreign
material.
Antigens - CORRECT ANSWER - Protein identifier flag. "Self from non-self"
Antibodies - CORRECT ANSWER - Produced when introduced to foreign antigens.
Serum - CORRECT ANSWER - Plasma without a coagulant. No clotting factors.
, Erythrocytes - CORRECT ANSWER - red blood cells. Bi-concave disc. Looks circular
with a white dot in the center under microscope.
Central Pallor - CORRECT ANSWER - Where cell is thinnest. The white dot portion of
the RBC under the microscope.
Function of Erythrocytes - CORRECT ANSWER - Transport O2.
How do erythrocytes transport O2? - CORRECT ANSWER - Through Hemoglobin
Hemoglobin - CORRECT ANSWER - Essential to transport O2 and CO2.
A single RBC contains about __________ hemoglobins. - CORRECT ANSWER - 300
million
A single hemoglobin molecule is composed of - CORRECT ANSWER - 1 protein -
globulin
4 non-proteins - heme
Each heme has _ iron molecule/s. - CORRECT ANSWER -1
Each iron molecule can combine with _ __ ________. - CORRECT ANSWER - 1 O2
molecule
Each hemoglobin molecule can associate with _ __ _________. - CORRECT ANSWER -
4 O2 molecules
Oxyhemoglobin - CORRECT ANSWER - When hemoglobin is combined with O2.