AP BIOLOGY

LABORATORY REVIEW

CELL RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why can’t human cells survive using anaerobic respiration?
A
too much carbon dioxide is made
B
not enough energy is released from glucose
C
there is no oxygen
D
there is too much heat released
Explanation: 

Detailed explanation-1: -We can survive off of anaerobic respiration for a short period of time but it will not be effective long-term because the cells will not have adequate ATP or oxygen. The body copes with temporary absence of oxygen by carrying our fermentation but we can’t survive purely off fermentation.

Detailed explanation-2: -During anaerobic respiration, the oxidation of glucose is incomplete-not all of the energy can be released from the glucose molecule as it is only partially broken down.

Detailed explanation-3: -In anaerobic respiration, less energy is extracted. In this process only 02 ATP molecules are produced by each glucose molecule and the glucose molecules are partially broken down. The reaction yields less energy as compared to the aerobic respiration because the end product is alcohol and not carbon dioxide.

Detailed explanation-4: -Anaerobic glycolysis serves as a means of energy production in cells that cannot produce adequate energy through oxidative phosphorylation. In poorly oxygenated tissue, glycolysis produces 2 ATP by shunting pyruvate away from mitochondria and through the lactate dehydrogenase reaction.

There is 1 question to complete.