Question

Which of the following bacteria is found in human intestine?
1. Vibrio cholerae
2. Escherichia coli
3. Corynebacterium
4. Bacillus thuringiensis

Answer 1

Correct Answer - Option 2 : Escherichia coli

The Correct Answer is Escherichia coli.

• Escherichia coli is a type of bacteria that normally lives in your intestines. 
• It's also found in the gut of some animals. 
• Most types of E. coli are harmless and even help keep your digestive tract healthy. 

• Vibrio cholerae is a Gram-negative, comma-shaped bacterium. The bacterium's natural habitat is brackish or saltwater where they attach themselves easily to the chitin-containing shells of crabs, shrimps, and other shellfish.
• Corynebacterium is a genus of bacteria that are Gram-positive and aerobic. They are bacilli, and in some phases of life they are, more particularly, club-shaped, which inspired the genus name. They are widely distributed in nature in the microbiota of animals (including the human microbiota) and are mostly innocuous, most commonly existing in commensal relationships with their hosts.
• Bacillus thuringiensis is a Gram-positive, soil-dwelling bacterium, commonly used as a biological pesticide.