BIOL 2313 – Exam 1 | A+ Graded Questions with
Correct Answers
The immediate response to blood vessel damage is a ___ - ✔✔Vascular spasm
Which enzyme converts fibrinogen into fibrin - ✔✔Thrombin
The most common blood tyoe in the United States is ___ - ✔✔O
The universal recipient is ___ - ✔✔AB positive
If John has O positive blood, he will have which of the following antibodies in his blood -
✔✔Both Anti-A and Anti-B
This condition is caused by abnormal hemoglobin - ✔✔Thalassemia
Which of the following structures is an exception to the general principle surrounding blood
vessel oxygenation levels - ✔✔Pulmonary artery and pulmonary veins
What purpose does the coronary circuit serve - ✔✔It delivers blood to the heart
The plateau portion of the action potential in contractile cardiac muscle cells is due to - ✔✔An
influx of calcium ions
In a normal heart, which of the following structures is responsible for setting the heart's pace
- ✔✔Sinoatrial (SA) node
A hematopoietic stem cell will give rise to - ✔✔Erythrocytes, leukocytes, platelets (all of the
above)
These cells can enter the tissues as macrophages and are important to chronic infections -
✔✔Monocytes
, Oxygen binds to the ___ portion of hemoglobin - ✔✔Iron atom
A patient with low iron levels would experience which of the following symptoms - ✔✔An
increase in fatigue
Red blood cells are efficient oxygen transport cells. Of the following characteristics, which is
the major contributor to the significant oxygen-carrying capacity of a red blood cells - ✔✔Red
blood cells are biconcave discs
If a patient has pernicious anemia, the inability of the body to absorb vitamin B12, the patient
___ - ✔✔Would have a decreased number of red blood cells
An elevated neutrophil count would be indicative of ___ - ✔✔An actue bacterial infection
A ___ is the progenitor of platelets - ✔✔Megakaryocyte
Why don't platelets form plugs in undamaged vessels - ✔✔Only contact of platelets with
exposed collagen fibers an von Willebrand factor causes them to be sticky and form plugs
Which of the following cells fight virus-infected cells - ✔✔Lymphocytes
Predict the nature of an ECG recording when the atrioventricular node becomes the
pacemaker - ✔✔The rhythm would be slower
Which heart abnormality has no P waves on an otherwise ECG - ✔✔Junctional rhythm
The "lub-dup" heart sounds are produced by - ✔✔The closing of the atrioventricular valves
("lub") and the closing of the semilunar valves ("dup")
In terms of blood flow, why is it important that atrial diastole occurs just as ventricular systole
begins - ✔✔The atria needs that time to fill with blood in preparation for ventricular filling
Correct Answers
The immediate response to blood vessel damage is a ___ - ✔✔Vascular spasm
Which enzyme converts fibrinogen into fibrin - ✔✔Thrombin
The most common blood tyoe in the United States is ___ - ✔✔O
The universal recipient is ___ - ✔✔AB positive
If John has O positive blood, he will have which of the following antibodies in his blood -
✔✔Both Anti-A and Anti-B
This condition is caused by abnormal hemoglobin - ✔✔Thalassemia
Which of the following structures is an exception to the general principle surrounding blood
vessel oxygenation levels - ✔✔Pulmonary artery and pulmonary veins
What purpose does the coronary circuit serve - ✔✔It delivers blood to the heart
The plateau portion of the action potential in contractile cardiac muscle cells is due to - ✔✔An
influx of calcium ions
In a normal heart, which of the following structures is responsible for setting the heart's pace
- ✔✔Sinoatrial (SA) node
A hematopoietic stem cell will give rise to - ✔✔Erythrocytes, leukocytes, platelets (all of the
above)
These cells can enter the tissues as macrophages and are important to chronic infections -
✔✔Monocytes
, Oxygen binds to the ___ portion of hemoglobin - ✔✔Iron atom
A patient with low iron levels would experience which of the following symptoms - ✔✔An
increase in fatigue
Red blood cells are efficient oxygen transport cells. Of the following characteristics, which is
the major contributor to the significant oxygen-carrying capacity of a red blood cells - ✔✔Red
blood cells are biconcave discs
If a patient has pernicious anemia, the inability of the body to absorb vitamin B12, the patient
___ - ✔✔Would have a decreased number of red blood cells
An elevated neutrophil count would be indicative of ___ - ✔✔An actue bacterial infection
A ___ is the progenitor of platelets - ✔✔Megakaryocyte
Why don't platelets form plugs in undamaged vessels - ✔✔Only contact of platelets with
exposed collagen fibers an von Willebrand factor causes them to be sticky and form plugs
Which of the following cells fight virus-infected cells - ✔✔Lymphocytes
Predict the nature of an ECG recording when the atrioventricular node becomes the
pacemaker - ✔✔The rhythm would be slower
Which heart abnormality has no P waves on an otherwise ECG - ✔✔Junctional rhythm
The "lub-dup" heart sounds are produced by - ✔✔The closing of the atrioventricular valves
("lub") and the closing of the semilunar valves ("dup")
In terms of blood flow, why is it important that atrial diastole occurs just as ventricular systole
begins - ✔✔The atria needs that time to fill with blood in preparation for ventricular filling
