Answer:
NADH, pyruvic acid and ATP
Explanation:
There are two types of respiration:
1. Aerobic respiration
2. Anaerobic respiration
Aerobic respiration
It is the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.
Glucose + oxygen → carbon dioxide + water + 38ATP
Anaerobic Respiration
It is the breakdown of glucose molecule in the absence of oxygen and produce small amount of energy. Alcohol or lactic acid and carbon dioxide are also produced as byproducts.
Glucose→ lactic acid/alcohol + 2ATP + carbon dioxide
This process use respiratory electron transport chain as electron acceptor instead of oxygen. It is mostly occur in prokaryotes. Its main advantage is that it produce energy (ATP) very quickly as compared to aerobic respiration.
Glycolysis is the first which is same in both aerobic and anaerobic respiration.
Glycolysis
Glycolysis is the first step of both aerobic and anaerobic respiration. It is occur in cytosol of living organisms. In human body, glycolysis produce pyruvate in aerobic condition while lactic acid is produced in anaerobic condition. In aerobic process one molecule of glucose is converted into two molecule of pyruvate and two ATP also produced. The two NADH are also produced as a result of oxidation of pyruvate.
The overall reaction can be written as,
C₆H₁₂O₆ + 2NAD⁺ + 2Pi + 2ADP → 2Pyruvate + 2NADH + 2ATP + 2H⁺ + 2H₂O
