Biology

Introduction:

Respiration commonly known as the inhalation and exhaling or breathing has a

more little known definition. This is the definition that involves the cellular

level of eukaryotic cells. Cellular respiration may best be described by the

following equation: C6h1206+602-6CO2+6H20+36ATP. ATP that is the energy needed

for a cell to function as part of cellular respiration. ATP is needed to power

the cell processes. If cells are denied energy they will die. The second law of

thermal dynamics says energy is lost in the form of heat whenever energy changes

form. ATP is stored. Glucose produced C02, water and ATP. Respiration may be

said to be a controlled breakdown of glucose that produces ATP for cell

activities to be carried out.

The purpose of the lab was to show the effect of temperature on the rate of

respiration. Temperature increases the rate of reaction between molecules this

will have a profound impact on the rate of respiration.

Rate is determined on how fast something is being consumed in a reaction, or how

fast something is being crated. The rate of respiration is measured the easiest

by the amount of C02 produced by the reaction or by the amount of 02 consumed.

The best way to measure gasses is by creating a closed system for an experiment

to take place. Consuming oxygen would decrease the volume of gas while the

production of CO2 will increase the production of gas. By using this principle

the measurement of an organisms volume if it absorbs CO2 released in respiration

can be attributed to the consumption of oxygen.

Hypothesis: If the temperature increases, then the respiration rate will also

increase. The respiration rate will increase because more activity is going

on.

Experiment:

The experiment a simple respirometer will be used in this experiment to detect

changes in gas volume. Changes of volume will be measured at five different

temperature levels and compared. A chamber will be constructed using respiring

material (peas) and a carbon dioxide absorbing agent. Gas volumes may be

influence by outside factors like air and pressure and temperature. A second

chamber used as a control will be used to measure