To approach this problem, let's start by categorizing the forms and shapes of bacteria as per the given table:
1. Coccus: These bacteria are spherical in shape.
2. Bacillus: These bacteria are rod-shaped.
3. Spirillum: These bacteria are spiral in shape.
Now, let's analyze the given options one by one:
### Option 1:
- [tex]\( X = \text{Spherical} \)[/tex]
- [tex]\( Y = \text{E. coli} \)[/tex]
Analysis:
- Spherical bacteria refer to the Coccus form.
- E. coli (Escherichia coli) is not spherical; it is rod-shaped.
Since E. coli is rod-shaped, this doesn't align with the spherical form associated with Coccus.
### Option 2:
- [tex]\( X = \text{Comma shaped} \)[/tex]
- [tex]\( Y = \text{Whooping cough} \)[/tex]
Analysis:
- Comma-shaped bacteria are typically identified under the Vibrio category. However, the problem categorizes typical forms, primarily focusing on Coccus, Bacillus, and Spirillum.
- The bacteria that cause Whooping cough are called Bordetella pertussis, which are rod-shaped.
Given this information:
- Comma-shaped bacteria do not fit into the given categories (Coccus, Bacillus, or Spirillum) directly under the table provided.
- Whooping cough bacterium Bordetella pertussis is indeed Bacillus (rod-shaped).
To summarize:
Since E. coli is rod-shaped and does not fit the Coccus form, and Whooping cough bacterium is rod-shaped, not matching the given "Comma shaped" form but is under Bacillus, we conclude:
Neither option perfectly fits the given forms and shapes, based on the classical definitions in the table provided. Nevertheless, both options contain some inaccuracies regarding the matching of forms and shapes to specific bacteria descriptions provided, leading to an indeterminate choice under precise parameters of given morphology.
Thus, considering the analysis above, there isn't a perfectly accurate option directly based on the table and descriptions provided for traditional forms and shapes of bacteria.
