Biology 215 (Dr. Howell) - Exams 1-3 Missed Questions
Terms in this set (78)
Most of the carbon dioxide produced in the body is transported in the blood
as carbonic acid
Which of the following muscles are used during forced (i.e., heavy) inhalation?
intercostal muscles, pectoralis minor, sternocleidomastoid
The pleural fluid keeps the lungs attached to the body wall because of
Normal blood and tissue pH is 7.4. When the pH within a tissue falls, hemoglobin
releases oxygen more easily
For all practical purposes, hemoglobin irreversibly binds
Fetal hemoglobin binds oxygen
with higher affinity than adult hemoglobin
If air is introduced into the pleural cavity
the lung will collapse
Each Hb molecule binds________________ oxygen molecule(s).
Normal tidal volume for the average 70 kg male is
_________________ are lymphatic nodules found in the pharynx.
Lung compliance can be affected by
pulmonary adema, rheumatoid arthritis, emphysema
If a student inhales as deeply as possible and then blows the air out of his lungs until he cannot exhale any more, the amount of air expelled would be his
A container contains 75% nitrogen and 25% oxygen gas under 20 psi of pressure. What is the partial pressure of oxygen?
-controlled by skeletal muscle
- completed using smooth muscle
Which of the following digestive system structures is retroperitoneal?
The ______________ are sharp, serrated teeth at the front of the mouth.
One role of the uvula is to
guard the entrance to the nasal cavity
All of the following are functions of saliva, except
The plicae serve to
increase the surface area of small intestine and help mix food
GIP is a hormone produced by the duodenum that
inhibits stomach activity
A target of VIP is (are)
the blood vessels of the small intestine
All of the following require oxygen, except
The final electron acceptor of the ETS is
What is the most acidic compartment of the mirochondrion?
the intermembrane space
How many carbon atoms are found in alphaketogluterate?
Which lipoprotein is often called "the bad cholesterol"?
The intermediates of glycolysis in order.
- Glucose 6 phosphate
- Fructose 6 phosphate
- Fructose- 1-6-biphosphate
The two-way exchange of substances between blood and body cells occurs only through
Thin-walled vessels with valves that appear collapsed in most prepared sections are
Generally, the most important factor in vascular resistance is
diameter of the vessel
Blood transport through the venous system is assisted by means of
- skeletal muscle contractions
- the respiratory pump
The force called "BCOP" is generated by
proteins in the blood
Increased CO2 levels in a tissue promotes
the dilation of precapillary sphincters
The blood vessels that play the most important role in regulating blood pressure are the
As blood travels from the aorta to the capillaries, the
Blood pressure is measured in arteries by
In response to mild bleeding, there is
mobilization of venous reserve
capillary hydrostatic pressure may be
- higher than BCOP
- lower than BCOP
- equal to BCOP
Which of the following contains the largest volume of blood?
-tend to be deep in the body
Which has the largest total cross-sectional area?
Blood velocity is fastest in the
Which is the normal hematocrit value?
The function of a red blood cell is to
carry oxygen from the lungs to all body cells
The disease sickle cell anemia is a good example of what can happen when
the amino acid sequence of a protein is altered
The total volume of blood in the body of a 70 kg man is approximately ________ litres.
Erythrocytes are formed in the
attack multicellular parasites
recruit WBCs to an infection and destroy bacteria
During blood clotting, the extrinsic pathway is initiated by
hemolytic disease of the newborn (HDN) is only a problem (or potential problem) if
- the father is Rh+
-the baby is Rh+
All are functions of the blood, except
generate body heat
At rest, cardiac output (CO) is about
For most people, the resting heart rate is __________ beats per minute.
The heart is located in the
- fibrous pericardium'
The two hormones released by the posterior lobe of the pituitary are
The endocrine tissue of the pancreas is the
when a hormone binds to a receptor on the cell surface
the second messenger appears in the cytoplasm
When steroid hormones bind to their receptors
gene transcription usually occurs
When blood glucose levels rise
insulin is released from the pancreas
Which hormone helps to regulate blood calcium levels
Increased aggressive behavior is associated with
ACTH is produced by the
water retention by the kidneys
How many ways can the nervous system control the endocrine system?
The condition known as Seasonal Affective Disorder (SAD) may be caused by
Which of the following is a mixed gland?
The body's largest lymphatic organ is the
Antibodies are also known as
Antigen-presenting cells (APCs) display antigens on
class II MHC proteins
Antibodies that cause RBC agglutination and are the first antibodies produced following an infection are
Which is an example of an autoimmune disease?
Which antibody is found in tears and saliva?
Body defenses present at birth are called
A small molecule that inhibits an enzyme in a crucial bacterial biochemical pathway is called ___________.
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