Chapter 18, Problem 7STP

Summary Introduction

Introduction:

The bacteria are the microscopic organism. They are prokaryotic and they lack true nucleus. On the basis of morphology, they can be divided into three type: spirochetes, cocci and bacilli. On the basis of gram staining they can be classified as gram positive (that are deeply stained in purple color) and gram negative (that are pink in color after staining).

Answer to Problem 7STP

Option (C).

Explanation of Solution

Explanation for correct answer:

Option (C) Pneumonia. Pseudomonas aeruginosa is a gram-negative bacteria, that is rod-shaped and causes pneumonia. Hence, it is a correct answer.

Explanation for incorrect answer:

Option (A) Meningitis. Bacillus cereus is a gram-positive bacteria that causes diarrhea. Hence, this is an incorrect answer.

Option (B) Cystic fibrosis. It is caused by genetic disorder. Hence, it is an incorrect answer.

Option (D) Traveler’s Diarrhea. Escherichia coli is cocci shaped that is spherical bacteria and cause diarrhea. Hence, this is an incorrect answer.