Biology 353 Exam 3 Practice Latest Questions And Answers
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Course
Biology 353
Institution
Biology 353
Biology 353 Exam 3 Practice Latest Questions And Answers
the partial pressure of carbon dioxide in alveolar air after inspiration of fresh dry air is lower than one would expect because ANS water vapor contributes to the overall alveolar gas pressure
the pulmonary and systemic circulation have...
Biology 353 Exam 3 Practice Latest Questions And
Answers
the partial pressure of carbon dioxide in alveolar air after inspiration of fresh dry air is lower than one
would expect because ANS water vapor contributes to the overall alveolar gas pressure
the pulmonary and systemic circulation have similar ANS blood flow per minute and diastolic
pressures
Myoglobin is an oxygen binding pigment found in some muscles. It has a higher oxygen affinity than
hemoglobin. Therefore, it ANS facilitates the transfer of oxygen from blood to muscle cells, can
act as a store for oxygen, and releases oxygen only when the ppO2 becomes very low
gas exchange in the lungs takes place between the ANS alveoli and alveolar capillaries
the affinity of hemoglobin for oxygen depends on ANS partial pressure of oxygen in the red
blood cells
unloading of oxygen from hemoglobin in metabolizing tissues mainly depends on ANS partial
pressure of oxygen in erythrocytes
CO2 exchange rate in the lungs relies on diffusion between blood and alveolar air, therefore it is
dependent on: ANS diffusion distance, diffusion area, and the gas concentration gradient
the main transport of CO2 in the blood is in the form of ANS bicarbonate dissolved in the blood
plasma
hyperventilation of the lungs results in elevated blood pH levels, called respiratory alkalosis. This
happens because of ANS an excessive loos of CO2 from the blood and a decrease pCO2 in the
blood
, in hypothermia, one's core body temperature decreases to lower than 95 degrees F. This low
temperature reduces organ function because low temperatures... ANS increase the affinity of
hemoglobin for O2 and reduce the dissociation of 02 from hemoglobin in tissues
During exercise, a vigorously contracting muscle will extract a greater percentage of oxygen form the
blood going to it than a relaxed muscle somewhere else in the body. Which factor(s) are responsible
for this? ANS A high pCO2 in the capillaries of this muscle and a low pH in the contracting
muscle
Central chemoreceptors influence breathing (ventilation rate) by monitoring ANS the pH of of
the cerebrospinal fluid
hyper-secretion of the mieralocorticoid, aldosterone, by the adrenal glands most likely will result in
the following diagnostic characteristics: ANS Normal blood glucose
Normal blood ACTH
high plasma sodium
high blood pressure
So called ACE inhibitors can be used to treat hypertension. These drugs reduce blood pressure by...
ANS increasing the sodium and water excretion in urine
Release of ADH from the posterior pituitary gland is stimulated by... ANS an increased plasma
and cerebrospinal fluid osmolarity
Oat cell carcinomas (aka small cell carcinomas) are lung cancers that often produce and secrete ADH
at rates that are not under feedback control. The symptoms this produces are most reminiscent of
those produced by ANS excessive salt intake
Addison's disease is an insufficiency of the adrenal cortex to produce steroids, including aldosterone.
What symptoms could be expected? ANS Excessive loss of sodium in the urine and low blood
pressure
The hormone that regulates the secretion of HCl by gastric parietal cells is : ANS gastrin
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