Question

Where are the enzymes of autotrophic bacteria for carry on carbon fixation?

Answer 1

The acquisition of cellular carbon from inorganic carbon is a prerequisite for life and marked the transition from the inorganic to the organic world. Recent theories of the origins of life assume that chemoevolution took place in a hot volcanic flow setting through a transition metal-catalysed, autocatalytic carbon fixation cycle. Many archaea live in volcanic habitats under such constraints, in high temperatures with only inorganic substances and often under anoxic conditions. In this Review, we describe the diverse carbon fixation mechanisms that are found in archaea. These reactions differ fundamentally from those of the well-known Calvin cycle, and their distribution mirrors the phylogenetic positions of the archaeal lineages and the needs of the ecological niches that they occupy.

Answer 2

Answer:

Explanation:

The enzymes of autotrophic bacteria for carry on carbon fixation.

It is essential for life that inorganic carbon is converted into cellular carbon; this process also signified the change from the inorganic to the organic world.

Recent explanations for the beginnings of life imply that chemoevolution occurred in a hot volcanic flow environment via an autocatalytic carbon fixation cycle that was catalysed by a transition metal.

Such limitations, high temperatures, the presence of solely inorganic materials, and frequently anoxic conditions are all present in volcanic settings where many archaea thrive.

We outline the several carbon fixation methods that are present in archaea in this review. These reactions are fundamentally distinct from those of the well-known Calvin cycle, and they are distributed in a way that reflects the evolutionary positions of the archaeal lineages and the requirements of the ecological niches that they inhabit.

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