Chapter 18, Problem 4STP

Summary Introduction

Introduction:

The endospore is a tough dormant stage of a bacteria. The formation of the endospores takes place inside the bacteria and then it is released in the external environment.

Answer to Problem 4STP

Option (A).

Explanation of Solution

Explanation for correct answer:

Option (A) Dormant state of bacteria that can survive in unfavorable conditions. The endospores are the tough dormant, non-reproductive stage of the bacteria. It has a tough covering that help in the survival of the bacteria in the harsh conditions. Hence, it is the correct answer.

Explanation for incorrect answer:

Option (B) a form of sexual reproduction in bacteria during which genetic information is exchanged. The bacteria do not undergo sexual reproduction. Hence, it is an incorrect answer.

Option (C) a protective covering that bacteria secrete to protect them against harsh environment. The protective covering of the bacteria is called capsule. Hence, it is an incorrect answer.

Option (D) a tiny hair like protein structure attached to the bacterial surface. The pilus is the hair like structure made up of protein and it is present on the outer covering of bacteria. Hence, it is an incorrect answer.