Although Lundigaard’s theory has been proven to be true, it has some flaws. These are-
1. Although anion absorption is said to be active, energy (ATP) is not shown to be used.
2. Cation transport through cytochromes is not clear.
3. Anions are transported through the cytochrome, but cations are not. This is not acceptable to many.
4. In this theory, respiration rate increases during anion absorption, but not during cation absorption. Scientists Epstein (1955) and Handey (1955) proved by their experiments that respiration rate increases during cation absorption.