Cone cells, or cones, are one of two types of photoreceptor cells in the retina of the eye. They are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.
The two most common types of fermentation are (1) alcoholic fermentation and (2) lactic acid fermentation. (1) Alcoholic fermentation: the type of fermentation in which ethyl alcohol is the main end product .This is very common in yeast (unicellular fungus) and also seen in some bacteria.ermentation is of different types and takes place under anaerobic conditions mostly in saprophytic microorganisms like certain bacteria and fungi. However, it may also take place in higher organisms under certain conditions.
One of the most common bacteria that engage in this type of fermentation is Lactobacillus. Some humans have bacteria in their digestive system that are capable of engaging in lactic acid fermentation. Those who lack such bacteria are called âlactose intolerantâ as their body will not digest milk sugars effectively.