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Dat bio

Respiration

QuestionAnswer
________ the utilization of oxygen by an organism Respiration
________ resp is the entrance of air into lungs and betwen blood and alveoli External resp
________ reso is between blood and cells Internal resp
annelids perform gas exchange by ____ through the skin diffusion
Arthropods have ________ circ system no carriers for oxygen open circ system
_______ the process which air is inhaled and exhaled ventilation
inhalation the diaphragm __________ while intercostal muscles _______ and pushes the chest up contracts and flattens; contracts
the increased vol in chest cavity _____ the pressure which makes the lungs expand and fill reduces
exhalation is a ______ process passive process
____________ controls ventilation medulla oblungato
Oxygen is transported almost entirely by hemoglobbin
1.5% of O2 is in blood plasma
saturated hb has ____ O2 molecules 4
oxygen binds to _______ in hb and CO2 binds to the _____ to form carbaminohemoglobin heme grp; polyp chain
CO2is mainly transported as carbonic acid
_____ of Co2 is carried as dissolved gas in the blood 5%
________ causes carbon dioxide loading high Co2 in tissue fluid forms gradient between tissue fluid and blood. Co2 diffuses into blood
when ______ binds to oxyhemoglobin it causes it to lose affinity for O2 H+
________ causes oxygen unloading/ consumption pressure gradient high O2 in artery and low O2 in tissue fluid
what is the Bohr effect active tissues generate CO2 raising H+ (lowers pH)promotes oxygen unloading
heavy exercise raise CO2 lowers blood pH and lowers blood O2 which causes increased ventilation True/False False, all values are constant
the main stimulus in pulmonary ventilation is the _______ conc in tissue fluid H+
____ is the driving force in respiration PCO2 of arterial blood
Created by: smuttz
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