From an evolutionary point of view, which respiratory protein is common in many organisms?
Correct answer: C. Cytochrome c
- A. Cytochrome a
- B. Cytochrome b
- C. Cytochrome c
- D. Cytochrome d
Explanation
Cytochrome c: This option is the correct answer. Cytochrome c is a highly conserved respiratory protein found in a wide range of organisms, including bacteria, fungi, plants, and animals. It plays a vital role in electron transport and is involved in transferring electrons between different protein complexes within the mitochondrial membrane. Due to its high level of conservation, cytochrome c is considered a common respiratory protein across diverse organisms.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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