Question

Chemoautotrophic nutrition occurs in
A. Fungi and protista
B. Plants and bacteria
C. Some protists and mycoplasma
D. Iron, sulphur and ammonifying bacteria

Answer 1

Hint: Chemoautotrophs are cells that make their own energy and organic materials from inorganic synthetics. Chemoautotrophs then infer energy for their life capacities from inorganic synthetics. They feed on synthetic compounds that are acceptable electron contributors, like hydrogen sulfide, sulfur, or iron.

Complete answer:
In nature, "autotrophs" are life forms that don't have to eat on the grounds that they make their own organic materials and energy. This term comes from the Greek "auto" for "self" and "troph" for "to eat" or "to take care of."
Like all autotrophs, chemoautotrophs can "fix" carbon. They take intakes of carbon from inorganic mixtures, like carbon dioxide, and utilizing it to make natural mixtures like sugars, proteins, and lipids.
Chemoautotrophs are normally found in conditions where plants can't endure, for example, at the lower part of the sea, or in acidic natural aquifers. A few kinds of chemoautotrophs likewise assume basic parts in plant-based environments. Despite the fact that plants perform carbon obsession in these environments, numerous plants depend on chemoautotroph microorganisms to fix nitrogen, which is important to make amino acids and proteins.
Chemoautotrophs structure the premise of the energy pyramid for biological systems where photosynthesis can't endure. Without chemoautotrophs, life would just have the option to exist where energy could be gotten from daylight.
They are the premise of some remote ocean biological systems, for example, those currents around remote ocean aqueous vents. Researchers have conjectured that chemoautotrophs could shape the premise of life on planets which get less daylight than earth. Chemoautotrophs can incorporate their own natural particles from the obsession of carbon dioxide.
Chemoautotrophs incorporate nitrogen fixing microscopic organisms situated in the dirt, iron oxidizing microbes situated in the magma beds, and sulfur oxidizing microorganisms situated in remote ocean warm vents.

So, the right answer is choice D.

Additional Information:
Iron microbes are a sort of microscopic organisms that acquire energy by oxidizing ferrous iron which is disintegrated in water. Since they acquire their energy from iron, they can live in water with iron fixations that would murder most life forms. Iron microbes can be found in iron-rich wells, streams, and natural aquifers.

Note:
They are once in a while considered as vermin on the grounds that the oxidized iron they produce can smudge sinks, latrines, garments, and different materials in the event that it gets into a water supply. This is especially basic with well water, which doesn't go through a similar filtration measure that city faucet water goes through.