During cellular respiration, four total ATP are produced when pyruvic acid is created. What else is produced as a result of this reaction?(1 point)
Responses
sugar
sugar
heat
heat
water
water
oxygen
water
During the process of cellular respiration, when pyruvic acid is created, besides the production of four ATP, three other products are formed. These products include heat, water, and carbon dioxide.
During cellular respiration, when pyruvic acid is created, several products are generated in addition to the four ATP molecules.
The complete breakdown of glucose in cellular respiration occurs in three main stages: glycolysis, the Krebs cycle (also known as citric acid cycle or TCA cycle), and electron transport chain (ETC).
During glycolysis, glucose is split into two molecules of pyruvic acid. At this stage, in addition to the two molecules of pyruvic acid, two molecules of ATP (adenosine triphosphate) are produced. This ATP is generated through substrate-level phosphorylation, where a phosphate group is transferred directly from an intermediate molecule to ADP (adenosine diphosphate), resulting in ATP production.
In the subsequent stages of cellular respiration, the pyruvic acid molecules undergo further breakdown to produce more ATP. In the Krebs cycle, each pyruvic acid molecule is fully oxidized, resulting in the production of three molecules of NADH (Nicotinamide adenine dinucleotide), one molecule of FADH2 (Flavin adenine dinucleotide), one molecule of ATP through substrate-level phosphorylation, and two molecules of carbon dioxide as a waste product.
Later, in the electron transport chain, the NADH and FADH2 molecules produced during glycolysis and the Krebs cycle undergo oxidative phosphorylation. As a result, several more molecules of ATP are produced, the exact number varying depending on the organism and conditions. However, it is important to note that the net gain of ATP from the breakdown of one molecule of glucose through cellular respiration is typically around 36 ATP.
In summary, although four ATP molecules are produced during the initial creation of pyruvic acid, the overall process of cellular respiration results in the generation of significantly more ATP, as well as carbon dioxide as a waste product.