FOOD TECHNOLOGY

Detailed explanation-1: -Chemosynthetic bacteria do not need sunlight to grow because. (a) They prepare their food without the help of light.

Detailed explanation-2: -In dark rooms, about 12 percent of bacteria, on average, were able to reproduce, the researchers at the University of Oregon found. But in sunlight, only 6.8 percent thrived. That was down to 6.1 percent for bacteria exposed to UV light.

Detailed explanation-3: -One group of bacteria that carry out photosynthesis are collectively known as purple bacteria. These bacteria contain a light receptor called AerR that interacts with a protein called CrtJ, which can directly bind to and alter the activity of genes involved in photosynthesis.