What substances can be metabolised anaerobically?
Anaerobic metabolism can only use glucose and glycogen, while aerobic metabolism can also break down fats and protein.
What can be broken down by anaerobic glycolysis?
Steps of the anaerobic glycolytic system: The breakdown of glucose to synthesise ATP results in the creation of a substance called ‘pyruvate’ and hydrogen ions. Because this system is ‘anaerobic’ there isn’t enough oxygen to break down pyruvate and synthesise anymore ATP.
What is produced during anaerobic metabolism?
Anaerobic metabolism, which can be defined as ATP production without oxygen (or in the absence of oxygen), occurs by direct phosphate transfer from phosphorylated intermediates, such as glycolytic intermediates or creatine phosphate (CrP), to ADP forming ATP.
What are the end products of aerobic and anaerobic metabolism?
End product of anaerobic metabolism is lactic acid while that of aerobic metabolism is carbon dioxide and water.
Is oxidative phosphorylation aerobic or anaerobic?
Aerobic vs anaerobic respiration
| Aerobic | Anaerobic | |
|---|---|---|
| Location | Cytoplasm (glycolysis) and mitochondria | Cytoplasm |
| Stages | Glycolysis (anaerobic), Krebs cycle, oxidative phosphorylation | Glycolysis, fermentation |
| ATP produced | Large amount (36 ATP) | Small amount (2 ATP) |
What is the anaerobic breakdown of glucose called?
Glycolysis is the breakdown of glucose into two pyruvate molecules. This process does not require oxygen (it is anaerobic).
What is the product of the anaerobic breakdown of glucose?
Glycolysis breaks down glucose (6-C) into two molecules of pyruvate (3C), and also produces: Hydrogen carriers (NADH) from an oxidised precursor (NAD+) A small yield of ATP (net gain of 2 molecules)
What is most likely to lead to anaerobic metabolism?
Anaerobic metabolism at the cellular level occurs when oxygen transport and tissue oxygenation are compromised. This can be a result of hypoxemia, anemia, inadequate systemic blood flow, or a combination of these factors.
What happens anaerobic glucose breakdown?
Anaerobic glycolysis is the transformation of glucose to lactate when limited amounts of oxygen (O2) are available. It replenishes very quickly over this period and produces 2 ATP molecules per glucose molecule, or about 5% of glucose’s energy potential (38 ATP molecules).
What are the waste products of aerobic metabolism?
Aerobic respiration breaks down glucose and combines the broken down products with oxygen, making water and carbon dioxide. The carbon dioxide is a waste product of aerobic respiration because cells do not need it.
Which of the following are common end products of aerobic and anaerobic respiration reactions?
The end products of aerobic respiration are carbon dioxide, water, and energy. The end products of anaerobic respiration are acids, alcohols, gases, and energy.
What is the difference between anaerobic and oxidative metabolism?
Anaerobic metabolism is considerably less efficient than oxidative metabolism. A single glucose molecule generates only 2 ATP molecules while being metabolized to 2 pyruvate molecules via anaerobic glycolysis, whereas subsequent oxidative metabolism of the pyruvates via the tricarboxylic acid cycle yields 34 ATP.
How does anaerobic metabolism of glucose cause metabolic acidosis?
Anaerobic metabolism of glucose leads to the accumulation of lactic acid, resulting in metabolic acidosis. Lactic acid reacts with bicarbonate, causing the serum bicarbonate to fall, resulting in a base deficit.
How fast is ATP broken down under anaerobic conditions?
Under anaerobic conditions, ATP will be broken down as fast as it is produced. Protons are produced by the hydrolysis of this ATP: These equations are only approximations and depend on a number of assumptions, including the concentration of free Mg 2+ in the cytosol and the intracellular pH (the latter influencing the phosphate charge).
What is the main metabolic pathway used during exercise?
Glycogen/glucose metabolism (Fig. 151.1) Anaerobic glycolysis is the main metabolic pathway used in the setting of limited oxygen supply during exercise.