(a) Chemosynthetic autotrophic bacteria are capable of oxidizing various inorganic substances such as nitrates, nitrites, and ammonia. This process releases energy, which these bacteria then use for ATP (adenosine triphosphate) production. ATP is a molecule that provides energy for many processes in living cells, including muscle contraction and nerve impulse propagation.

(b) These bacteria play a significant role in recycling nutrients like nitrogen, phosphorous, iron, and sulfur. They convert these elements from their inorganic forms in the environment into organic forms that can be used by other organisms. This process is essential for maintaining the health and productivity of ecosystems.

(c) However, chemosynthetic autotrophic bacteria do not evolve oxygen during photosynthesis. This is because they do not perform photosynthesis. Instead, they obtain energy through the process of chemosynthesis, which does not involve the use of light energy and therefore does not produce oxygen. Instead, chemosynthesis uses energy derived from the oxidation of inorganic chemicals, as mentioned in point (a).

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(a) Chemosynthetic autotrophic bacteria are capable of oxidizing various inorganic substances such as nitrates, nitrites, and ammonia. This process releases energy, which these bacteria then use for ATP (adenosine triphosphate) production. ATP is a molecule that provides energy for many processes in living cells, including muscle contraction and nerve impulse propagation.

(b) These bacteria play a significant role in recycling nutrients like nitrogen, phosphorous, iron, and sulfur. They convert these elements from their inorganic forms in the environment into organic forms that can be used by other organisms. This process is essential for maintaining the health and productivity of ecosystems.

(c) However, chemosynthetic autotrophic bacteria do not evolve oxygen during photosynthesis. This is because they do not perform photosynthesis. Instead, they obtain energy through the process of chemosynthesis, which does not involve the use of light energy and therefore does not produce oxygen. Instead, chemosynthesis uses energy derived from the oxidation of inorganic chemicals, as mentioned in point (a).

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(a) Chemosynthetic autotrophic bacteria are capable of oxidizing various inorganic substances such as nitrates, nitrites, and ammonia. This process releases energy, which these bacteria then use for ATP (adenosine triphosphate) production. ATP is a molecule that provides energy for many processes in living cells, including muscle contraction and nerve impulse propagation.

(b) These bacteria play a significant role in recycling nutrients like nitrogen, phosphorous, iron, and sulfur. They convert these elements from their inorganic forms in the environment into organic forms that can be used by other organisms. This process is essential for maintaining the health and productivity of ecosystems.

(c) However, chemosynthetic autotrophic bacteria do not evolve oxygen during photosynthesis. This is because they do not perform photosynthesis. Instead, they obtain energy through the process of chemosynthesis, which does not involve the use of light energy and therefore does not produce oxygen. Instead, chemosynthesis uses energy derived from the oxidation of inorganic chemicals, as mentioned in point (a).

Chemosynthetic autotrophic bacteria : (a) oxidise various inorganic substances such as nitrates, nitrites and ammonia and use the released energy for their ATP production.(b) play a great role in recycling nutrients like nitrogen, phosphorous, iron and sulphur.(c) evolve oxygen during photosynthesis

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