University:
Felician University
Course:
BIO-103 | General Biology I
Academic year:

2023
Views:

497

Pages:

1
Author:

SpaceCadet101

Cell Respiration ATP Production Define cell respiration Cell respiration is the controlled release of energy from organic compounds to produce ATP ………………………………………………………………………………………………………………………………………………….......... ………………………………………………………………………………………………………………………………………………….......... Describe how ATP acts as the energy currency for the cell ATP is composed of a sugar and base (adenosine) connected to three phosphate groups ………………………………………………………………………………………………………………………………………………….......... When a phosphate is cleaved (to form ADP + Pi), the energy stored in the bond is released ………………………………………………………………………………………………………………………………………………….......... Compare anaerobic and aerobic respiration Anaerobic Required Conditions Energy Yield Oxygen not required Small yield (~2 ATP) Animals: Lactic acid Products Location Aerobic Oxygen required High yield (~36 - 38 ATP) Carbon dioxide and water Plants: Ethanol and carbon dioxide Cytosol Cytosol and mitochondria Outline the purpose (and products) of fermentation The purpose of fermentation is to restore stocks of NAD+ needed for glycolysis (anaerobic respiration) ………………………………………………………………………………………………………………………………………………….......... This allows ATP to continue to be produced in the absence of oxygen (otherwise respiration would stop) ………………………………………………………………………………………………………………………………………………….......... Fermentation in animals reversibly converts pyruvate to lactic acid (and frees up NAD+) ………………………………………………………………………………………………………………………………………………….......... Fermentation in plants reversibly converts pyruvate to ethanol and carbon dioxide (and frees up NAD+) ………………………………………………………………………………………………………………………………………………….......... Describe the use of respirometry in measuring respiration rates Respirometers measure respiration rate - either by amount of carbon dioxide produced or oxygen consumed ………………………………………………………………………………………………………………………………………………….......... • A manometer can accomplish this by recording the pressure change (as a moving bubble in solution) that ………………………………………………………………………………………………………………………………………………….......... occurs when oxygen is consumed (must include a carbon dioxide absorbant) …………………………………………………………………………………………………………………………………………………..........