FOOD TECHNOLOGY

Detailed explanation-1: -Anaerobes, on the other hand, cannot grow in the presence of oxygen. Oxygen is toxic for them, and they must therefore depend on other substances as electron acceptors.

Detailed explanation-2: -Answer: Obligate anaerobes are organisms that do not require oxygen. In fact, oxygen is toxic for them, and these organisms can not tolerate oxygen in their environment. Instead, these organisms depend on fermentation or anaerobic respiration for generating energy for their growth and survival.

Detailed explanation-3: -Obligate anaerobes cannot tolerate oxygen because they utilize metabolic schemes built around enzymes that react with oxidants. The reliance upon low-potential flavoproteins for anaerobic respiration probably causes substantial superoxide and hydrogen peroxide to be produced when anaerobes are exposed to air.

Detailed explanation-4: -Obligate anaerobes are organisms that can grow and survive only in the absence of oxygen. In aerobic conditions they tend to die. They are killed by normal atmospheric concentrations of oxygen (ie, 20.95% O2)