Questions: Select the anaerobic bacterial genus that is used in yogurt production and as a probiotic.
a) Bacillus
b) Staphylococaus
c) Clostridia
d.) Bifidobacterium
Transcript text: Select the anaerobic bacterial genus that is used in yogurt production and as a probiotic.
a) Bacillus
b) Staphylococaus
c) Clostridia
d.) Bifidobacterium
Solution
The answer is the fourth one (d): Bifidobacterium.
Explanation for each option:
a) Bacillus: This genus includes both aerobic and facultatively anaerobic bacteria, but it is not typically used in yogurt production or as a probiotic.
b) Staphylococcus: This genus includes facultatively anaerobic bacteria, but it is not used in yogurt production or as a probiotic.
c) Clostridia: This genus includes obligate anaerobes, but they are not used in yogurt production or as probiotics. Some species are pathogenic.
d) Bifidobacterium: This genus includes anaerobic bacteria that are commonly used in yogurt production and as probiotics due to their beneficial effects on gut health.
Summary:
The correct answer is d) Bifidobacterium, as it is the anaerobic bacterial genus used in yogurt production and as a probiotic.