Question

Name the organism X given in the image below.

• A. Penicillium camemberti
• B. Penicillium roqueforti
• C. Lactobacillus lactis
• D. Lactobacillus bulgaricus

Answer 1

The correct option is B Penicillium roqueforti

The given image is that of the Roquefort cheese which is categorised as a blue cheese. This is due to the appearance of greenish blue streaks on the cheese, as can be seen in the given image.

The greenish blue streaks are nothing but the streaks of the mold Penicillium roqueforti growing on the cheese block. These fungi are added during the ripening process. Hence, the organism X shown in the image is Penicillium roqueforti.

Fig: Roquefort cheese

Penicillium camemberti is a mold used in the ripening process of Camembert cheese. The hydrolytic actions of the mold help to soften the cheese and give it the characteristic smooth texture.

Fig: Camembert cheese

Lactobacillus lactis and Lactobacillus bulgaricus are lactic acid bacteria. They are used in the preparation of curd.