Question

E. coli causes diarrhea when food infected by this bacteria is consumed. However, E.coli also aids in the digestion of food.

Choose the statement that justifies the role of E. Coli.

A. E. Coli function depends on quality of food

B. E. Coli strains are harmful as well as beneficial

C. E. Coli is capable of changing shape and fuction

Answer 1

Option (B).

Step-by-step explanation:

E.coli is a gram negative bacteria as the bacteria cannot take up the gram stain. E.coli is diverse in nature and different strains of E.coli is found in the environment.

E.coli is present in the intestine of humans. The strain of the bacteria is helpful as it helps in the digestion of food. The harmful strain of the E.coli bacteria can cause diarrhea by the contaminated food or water. Hence, the bacteria is beneficial or harmful is depend on the type of strain of the bacteria.

Thus, the correct answer is option (B).

Answer 2

the statement that justifies the role of E. coli is :

B. E. Coli strains are harmful as well as beneficial

If it consumed directly, it will be harmful to our body, but if not it would be beneficial for our digestive system

hope this helps