Question

Identify the option, which is not a common characteristic for bacteria and yeast.

• A. Both are unicellular
• B. Both are prokaryotes
• C. Both are capable of causing fermentation
• D. Both produce spores

Answer 1

The correct option is B Both are prokaryotes

Bacteria and yeast are unicellular organisms. Both are made up of only one cell. However, bacteria are prokaryotes and yeast are eukaryotes. Bacteria do not contain membrane bound organelles and nucleus. However, yeast contains membrane bound organelles and have true nucleus. Under anaerobic condition, yeast causes fermentation and converts sugar into alcohol. Lactic acid bacteria causes fermentation and produces lactic acid from milk. Both yeast and bacteria are capable of producing spores under unfavourable condition.

Thus, the correct answer is 'Both are prokaryotes.'