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CBSE Class 10 Answered

if chlorophyll is required for photosynthesis then how does bacteria prepare its own food
Asked by rc822828 | 16 Apr, 2020, 12:48: PM
answered-by-expert Expert Answer

Bacteria can produce their own food in the following ways-

  1. The first way bacteria can obtain food is via photosynthesis. Like plants, many bacteria contain chloroplasts or blue-green pigments, which means they can photosynthesize and thus create their own food by absorbing sunlight. Because these bacteria can create their own energy, they are classified as autotrophs.
  2. The second way bacteria can obtain food is through chemosynthesis, of which there are two types: Autotrophic chemosynthesis, and heterotrophic chemosynthesis.
  • Chemotropic autotrophs are bacteria which gain energy by breaking down inorganic molecules and chemical compounds in their environment, such as sulfides or ammonia, and are important for cycling nitrogen through the ecosystem.
  • Chemotrophic heterotrophs, or decomposers, are bacteria which gain energy by breaking down organic substances. This includes waste products, dead organic matter and other organic compounds. These bacteria are vital for making sure certain elements and minerals cycle through the ecosystem so that life can continue.
Answered by Sheetal Kolte | 16 Apr, 2020, 07:44: PM
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