To solve this question, let's carefully analyze the given table of bacteria types and their associated information.
[tex]\[
\begin{array}{|l|c|c|}
\hline \text{Form} & \text{Shape} & \text{Associated disease} \\
\hline \text{Coccus} & X & \text{Strep throat} \\
\hline \text{Bacilus} & \text{Rod shaped} & Y \\
\hline \text{Spirilum} & \text{Spiral} & \text{Cholera} \\
\hline
\end{array}
\][/tex]
1. For the form "Coccus," which is linked to "Strep throat," we need to determine what shape [tex]\( X \)[/tex] represents:
- The term "Coccus" is commonly used to describe spherical-shaped bacteria. Thus, the best description for [tex]\( X \)[/tex] is "Spherical."
2. For the form "Bacilus," which is labeled as "Rod shaped," we need to figure out the associated disease [tex]\( Y \)[/tex]:
- One disease commonly associated with rod-shaped (bacillus) bacteria is pneumonia. Bacteria such as Klebsiella pneumoniae and Haemophilus influenzae, which are rod-shaped, can cause pneumonia. Therefore, the best description for [tex]\( Y \)[/tex] is "Pneumonia."
With these descriptions, we find:
- [tex]\( X = \text{Spherical} \)[/tex]
- [tex]\( Y = \text{Pneumonia} \)[/tex]
Comparing these with the options provided:
1. [tex]\( X = \text{Spherical} \)[/tex]; [tex]\( Y = \text{E. coli} \)[/tex]
2. [tex]\( X = \text{Comma shaped} \)[/tex]; [tex]\( Y = \text{Whooping cough} \)[/tex]
3. [tex]\( X = \text{Oval shaped} \)[/tex]; [tex]\( Y = \text{S. aureus} \)[/tex]
4. [tex]\( X = \text{Rod shaped} \)[/tex]; [tex]\( Y = \text{Pneumonia} \)[/tex]
The correct choice that matches our descriptions is:
- [tex]\( X = \text{Spherical} \)[/tex]; [tex]\( Y = \text{Pneumonia} \)[/tex]
Therefore, the best answer is:
[tex]\( X = \text{Spherical} \)[/tex]; [tex]\( Y = \text{Pneumonia} \)[/tex]
