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human respiration

Human respiration - Singapore Biology Matters - Chapter 10 (ages 14-16)

QuestionAnswer
A chemical reaction in which a molecule gains oxygen or loses hydrogen. oxidation
The oxidation of food substances with the release of energy in living cells respiration
The oxidation of food substances in the presence of oxygen with the relase of a large amount of energy. Carbon dioxide and water are released as waste products aerobic
The breakdown of food substances in the absence of oxygen. Releases less energy than aerobic. anaerobic respiration
Two words for the amount of oxygen required to oxidise the lactic acid produced in muscles during anaerobic respiration. oxygen debt
The exchange of gases between an organism and the environment. gaseous exchange
The taking in of air is called ... inspiration
The giving out of air is called... expiration
The air in your nasal passages enters the ... pharynx
From the pharynx, air passes into your larynx and then into your trachea through an opening known as the .... glotis
Each bronchiole end in a cluster of air sacs
Each lung lies in the .... cavity pleural
The ribs are attached vertically to the ... sternum
Two sets of ......muscles (internal and external) control the movement of the ribs. intercostal
Is the oxygen high or low in the lungs? high
Is the oxygen high or low in the tissue? low
Oxygen combines with haemoglobin in the lungs to form what? oxyhaemoglobin
What is the name of the enzyme which catalyses the formation of carbonic acid from carbon dioxide and water in red blood cells? carbonic anhydrase
Created by: Redpath
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