BIO 116- Exam 2 Questions and
Answers
Four of the five answers listed below are barriers to pathogen invasion. Select the
exception.
-Mucous membrane
-Gastric juices
-Intact skin
-Blood plasma
-Lysozyme - ANSWER-Blood Plasma
Which event in inflammation aids in white blood cells migrating from the blood vessel
to the site? - ANSWER-Capillary permeability is increased.
Put the events of the internal immune response in the correct order. - ANSWER-1.
Detection and identification of foreign substances
2. Communication with other immune cells
3. Recruitment and coordination of response
4. Suppression of the foreign substance
How does inflammation begin? - ANSWER-A white blood cell (e.g., mast cell)
degranulates.
Which cells produce antibodies? - ANSWER-B cell
The purpose of a vaccine is: - ANSWER-to elicit an active immune response.
What cell type engulfs pathogens and foreign particles and signals to the immune
system to report the presence of a threat? - ANSWER-Phagocytes
Antigen binding sites on one antibody: - ANSWER-are unique and specific to one
antigen.
Which of the following structures separate the lung into lobes? - ANSWER-Fissure
The partial pressure of carbon dioxide is 45mmHg in the blood and 40mmHg in the
alveoli. What happens to the carbon dioxide? - ANSWER-It diffuses into the alveoli.
Four of the five answers are correct statements about breathing. Select the
EXCEPTION.
-Inhalation is powered in part by the diaphragm.
-During inhalation, the chest cavity expands.
-A respiratory cycle is one breath in (inhalation) and one breath out (exhalation).
-During exhalation, the diaphragm moves upward.
, -Muscles in the walls of the lungs aid in enlarging the lung volume - ANSWER-
Muscles in the walls of the lungs aid in enlarging the lung volume
When do fetal breathing movements begin? - ANSWER-around week 20
What is the role of alveolar macrophages? - ANSWER-to remove pathogens and
debris
Which of the following stimulates the production of erythrocytes? - ANSWER-
erythropoietin
Gas exchanges that occurs at the level of the tissues are called ____. - ANSWER-
internal respiration
Most of the carbon dioxide produced by the body is transported to the lungs as
_____. - ANSWER-Bicarbonate ions
The pacemaker for inhalation is located in the: - ANSWER-Medulla oblongata
A decrease in volume leads to a ___ pressure. - ANSWER-increase in
Which of the following anatomical structures is not part of the conducting zone? -
ANSWER-Alveoli
What is the proper sequence in the flow of air? - ANSWER-Nasal cavities, pharynx,
larynx, trachea, bronchi
The partial pressure of oxygen is higher in the capillary blood than the interstitial fluid
surrounding cells. Therefore oxygen moves from ___ to ___. - ANSWER-Blood; Air
The human vocal cords are located in the: - ANSWER-Larynx
The movement of both oxygen and carbon dioxide in the body is accomplished by: -
ANSWER-Diffusion
Proteins are digested into ___, which are then actively transported through brush
border cells into the interstitial fluid. - ANSWER-Amino Acids
What is the correct order for the layers of the GI tract wall, from innermost (next to
lumen) to outermost? - ANSWER-Mucosa- submucosa- muscle layer-
adventitia/serosa
The muscular tube between the throat and stomach is the: - ANSWER-Esophagus
What hormone, secreted by the stomach, increases the secretion of acids by cells of
the stomach lining? - ANSWER-Gastrin
The first part of the small intestine is the ___. - ANSWER-duodenum
Which of these organs is NOT considered an accessory digestive structure?
Answers
Four of the five answers listed below are barriers to pathogen invasion. Select the
exception.
-Mucous membrane
-Gastric juices
-Intact skin
-Blood plasma
-Lysozyme - ANSWER-Blood Plasma
Which event in inflammation aids in white blood cells migrating from the blood vessel
to the site? - ANSWER-Capillary permeability is increased.
Put the events of the internal immune response in the correct order. - ANSWER-1.
Detection and identification of foreign substances
2. Communication with other immune cells
3. Recruitment and coordination of response
4. Suppression of the foreign substance
How does inflammation begin? - ANSWER-A white blood cell (e.g., mast cell)
degranulates.
Which cells produce antibodies? - ANSWER-B cell
The purpose of a vaccine is: - ANSWER-to elicit an active immune response.
What cell type engulfs pathogens and foreign particles and signals to the immune
system to report the presence of a threat? - ANSWER-Phagocytes
Antigen binding sites on one antibody: - ANSWER-are unique and specific to one
antigen.
Which of the following structures separate the lung into lobes? - ANSWER-Fissure
The partial pressure of carbon dioxide is 45mmHg in the blood and 40mmHg in the
alveoli. What happens to the carbon dioxide? - ANSWER-It diffuses into the alveoli.
Four of the five answers are correct statements about breathing. Select the
EXCEPTION.
-Inhalation is powered in part by the diaphragm.
-During inhalation, the chest cavity expands.
-A respiratory cycle is one breath in (inhalation) and one breath out (exhalation).
-During exhalation, the diaphragm moves upward.
, -Muscles in the walls of the lungs aid in enlarging the lung volume - ANSWER-
Muscles in the walls of the lungs aid in enlarging the lung volume
When do fetal breathing movements begin? - ANSWER-around week 20
What is the role of alveolar macrophages? - ANSWER-to remove pathogens and
debris
Which of the following stimulates the production of erythrocytes? - ANSWER-
erythropoietin
Gas exchanges that occurs at the level of the tissues are called ____. - ANSWER-
internal respiration
Most of the carbon dioxide produced by the body is transported to the lungs as
_____. - ANSWER-Bicarbonate ions
The pacemaker for inhalation is located in the: - ANSWER-Medulla oblongata
A decrease in volume leads to a ___ pressure. - ANSWER-increase in
Which of the following anatomical structures is not part of the conducting zone? -
ANSWER-Alveoli
What is the proper sequence in the flow of air? - ANSWER-Nasal cavities, pharynx,
larynx, trachea, bronchi
The partial pressure of oxygen is higher in the capillary blood than the interstitial fluid
surrounding cells. Therefore oxygen moves from ___ to ___. - ANSWER-Blood; Air
The human vocal cords are located in the: - ANSWER-Larynx
The movement of both oxygen and carbon dioxide in the body is accomplished by: -
ANSWER-Diffusion
Proteins are digested into ___, which are then actively transported through brush
border cells into the interstitial fluid. - ANSWER-Amino Acids
What is the correct order for the layers of the GI tract wall, from innermost (next to
lumen) to outermost? - ANSWER-Mucosa- submucosa- muscle layer-
adventitia/serosa
The muscular tube between the throat and stomach is the: - ANSWER-Esophagus
What hormone, secreted by the stomach, increases the secretion of acids by cells of
the stomach lining? - ANSWER-Gastrin
The first part of the small intestine is the ___. - ANSWER-duodenum
Which of these organs is NOT considered an accessory digestive structure?
