Question

Lactobacilli is a harmful bacteria. Justify the statement.

Answer 1

Hint: The majority of bacteria function as decomposers. They convert large molecules into simpler molecules or minerals. Disease-causing bacteria are among the harmful bacteria. They are responsible for a variety of diseases such as typhoid, cholera, tuberculosis, tetanus, and others.

Complete answer:
The given statement is incorrect. Since Lactobacilli is not a harmful bacteria.
Justification: The bacteria's full name is Lactobacillus acidophilus. Lactic Acid Bacteria are gram-positive bacteria with numerous benefits ranging from improved digestion and immunity to milk curdling. It can also help to prevent certain infectious diseases like traveler's diarrhea and rotaviral diarrhea.
Lactobacillus species are important components of the human and animal microbiota in a variety of body sites, including the digestive system and the female genital system. Lactobacillus species are commonly found in the vaginal microbiota of women of European ancestry.

Formation of a curd: These bacteria are essential in the transformation of milk into curd. To make yogurt, dairy products such as milk are exposed to the microbial activity of the Lactobacillus acidophilus bacteria.

In Intestine: They are most commonly found in the human small intestine. Their presence in the system is not harmful, but rather beneficial, because adequate amounts of these bacteria in the body greatly influence and are directly proportional to the amount of Vitamin K and infection-fighting agents synthesized in the human body. When the count is low, the human body is more vulnerable to infections.

Note: Lactobacillus species have traditionally been classified as oxygen-tolerant anaerobes, but it has been shown that several strains can use oxygen as a substrate in reactions mediated by flavin oxidases and, in some cases, synthesize a minimal respiratory chain.