exam1 Flashcards
(29 cards)
After bleeding, which of the following disruptions of homeostasis would most directly stimulate production of red blood cells?
Group of answer choices
Decreased blood pH
Decreased blood plasma volume
Decreased blood plasma proteins
Decreased blood oxygen content
Decreased blood pressure
Decreased blood oxygen content
An individual with type B+ blood can receive which of the following blood types?
Group of answer choices
A+
A-
B+
B-
O+
B+
B-
O+
Sickle-cell anemia is caused by
Group of answer choices
Mutations in hemoglobin that cause a change in shape and therefore function.
Autoimmune destruction of red blood cells
Increased destruction of red blood cells due to faulty liver function
Insufficient iron in the blood
Insufficient vitamin K
Mutations in hemoglobin that cause a change in shape and therefore function.
The blood of an anemic person would carry
Group of answer choices
More oxygen than normal
Less oxygen than normal
There would be no change in the oxygen carried in the blood
Less oxygen than normal
An individual with type A+ blood has which of the following antigens on their red blood cells?
Group of answer choices
A
B
Rh
A
Rh
Most iron in the blood is located
Group of answer choices
In erythrocytes
In white blood cells
In platelets
Dissolved in the plasma
In erythrocytes
In the feedback loop that maintains appropriate red blood cell production, the sensor responds most directly to
Group of answer choices
Changes in red blood cell number
Changes in hematocrit
Changes in oxygen concentration
Changes in plasma volume
Changes in blood osmolarity
Changes in oxygen concentration
How many molecules of oxygen are carried in a functional hemoglobin molecule?
Group of answer choices
1
2
3
4
5
4
An individual adapted to high altitude would have a
Group of answer choices
Higher than normal hematocrit
Lower than normal hematocrit
Normal hematocrit
Higher than normal hematocrit
An individual with type A+ blood can receive which of the following blood types?
Group of answer choices
A+
A-
B+
B-
O+
A+
A-
O+
Bilirubin is formed as a breakdown product of
Group of answer choices
Hemoglobin
White blood cells
Plasma
Oxygen
Carbon dioxide
Hemoglobin
Hematocrit is defined as
Group of answer choices
The percentage of whole blood composed of red blood cells.
The percentage of whole blood composed of buffy coat.
The percentage of blood composed of plasma.
The percentage of whole blood composed of formed elements.
The percentage of whole blood composed of electrolytes.
The percentage of whole blood composed of red blood cells.
An individual with type B+ blood has which of the following antigens on their red blood cells?
Group of answer choices
A
B
Rh
B
Rh
An individual with type B+ blood has which of the following antibodies in their blood?
Group of answer choices
Anti-A
Anti-B
Anti-Rh
Anti-A
Blood question: In an unfortunate chainsaw accident, pretend I barely nicked a blood vessel. Despite losing blood, a checkup in the hospital proved I did not need surgery and would heal on my own. Which of the following was the fastest of my body’s responses?
Group of answer choices
Stimulation of the blood clotting cascade
Replacement of plasma volume
Replacement of lost red blood cells
Replacement of white blood cells
Stimulation of the blood clotting cascade
An individual with type A+ blood has which of the following antibodies in their blood?
Group of answer choices
Anti-A
Anti-B
Anti-Rh
Anti-B
Why is blood clotting considered a positive feedback loop?
Group of answer choices
Enzymes involved in the clotting process produce products that turn on those same enzymes.
There are anticoagulants in our blood.
Calcium is involved.
The process requires platelets.
The formation of a fibrin mesh requires conversion of a soluble protein to insoluble.
Enzymes involved in the clotting process produce products that turn on those same enzymes.
What stops the clotting process?
Group of answer choices
Enzymes that produce products that turn on clotting enzymes.
Anticoagulants in our blood.
Calcium.
Platelets.
The formation of soluble proteins from insoluble proteins.
Anticoagulants in our blood.
An individual adapted to high altitude would have a
Group of answer choices
Higher than normal hematocrit
Lower than normal hematocrit
Normal hematocrit
Higher than normal hematocrit
The blood of a person with a high hematocrit would carry
Group of answer choices
More oxygen than normal
Less oxygen than normal
There would be no change in the oxygen carried in the blood
More oxygen than normal
Many choice: In what part of blood do you find cell fragments or molecules involved in blood clotting (choose every correct answer)?
A
B
C
A
B
in the feedback loop that maintains appropriate red blood cell production, the effector is located in the
Group of answer choices
Kidney
Brain
Bone marrow
Thymus
Spleen
Bone marrow
The major function of iron in blood is to
Group of answer choices
Bind to oxygen as a component of hemoglobin
Maintain electrical neutrality in the blood
Carry oxygen dissolved in plasma
Bind CO2 dissolved in plasma
Bind CO2 as part of hemoglobin
Bind to oxygen as a component of hemoglobin
In the feedback loop that maintains appropriate red blood cell production, the effector is located in the
Group of answer choices
Kidney
Brain
Bone marrow
Thymus
Spleen
Bone marrow
