Question

An endospore may survive a drought because it is protected by a

Answer 1

Answer:

An endospore may survive a drought because it is protected by a THICK WALL

Explanation:

An endospore is a structure that is produced by some bacteria. This structure possesses characteristics such as:

a. Endospores have thick walls

b. They are very resistant and resilient to changes in temperature.

c. They are resistant as well to the action or activity of some chemicals.

d. Endospores serves as a means of protection for microorganisms such as Bacteria.

e. Endospores do not reproduce.

f. Endospores can be dormant or Inactive for a very long period of time.

Endospores may survive drought, activity of chemicals, extreme weather conditions, extreme temperatures due to the presence of thick walls in their structure.

Answer 2

Answer:

An endospore may survive a drought because it is protected by a specialized wall.

Explanation:

Endospores are non-reproductive, specialized cells, produced by bacterias to ensure survival under unfavorable conditions.

The endospore resistance can be explained by its particular wall structure.  The most external proteinic layer that encloses the spore, supplies chemical and enzymatic resistance. Under this layer, there is a thicker layer composed of peptidoglycan, the cortex.

An appropriate cortex formation is necessary to avoid the spores´dehydration. This wall provides resistance against high temperatures.  

The germ cellular wall is located under the cortex. This layer of peptidoglycan will become the bacterial cell wall after the endospore germinates.

The internal membrane, under the germen´s cellular wall, is an important permeability barrier against many chemical products potentially harmful.