What is respiration?
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Question
What is respiration?

Transcribed Image Text:MEASUREMENT OF RESPIRATION IN AN AQUEOUS
ENVIRONMENT
Introduction
Oxidation of food produces energy and is used up by the cell to do work.
Cellular activities are of different kinds such as propagation of nerve impulse,
contraction of muscles and secretion of cellular contents and these are all occurring in
the living cells which require energy.
Oxidation of food gives energy to animals. Energy, water and carbon dioxide is
released when food in animals are metabolized using oxygen.
Glucose + oxygen
-----> carbon dioxide + water + 673 Kcal
The rate of animal oxidizing carbohydrates can be determined by the oxygen
consumption or by the rate of carbon dioxide gas production because the amount of
oxygen intake is equal to the amount of carbon dioxide released.
Rates of carbon dioxide exchange per unit weight per unit time can be express
as measurement of respiratory rates. The most commonly units milliliters (mL) CO2 per
gram per hour and micromoles (4MCO2) per milliliter per hour.
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