EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This forms inside a bacteria cell and stores the genetic material, so that the cell can go dormant until conditions are favorable for it to thrive.
A
cytoplasm
B
plasmid
C
endospore
D
ribosome
Explanation: 

Detailed explanation-1: -Endospore formation is usually triggered by a lack of nutrients, and usually occurs in gram-positive bacteria. In endospore formation, the bacterium divides within its cell wall, and one side then engulfs the other. Endospores enable bacteria to lie dormant for extended periods, even centuries.

Detailed explanation-2: -It allows the bacterium to produce a dormant and highly resistant cell to preserve the cell’s genetic material in times of extreme stress. Endospores can survive environmental assaults that would normally kill the bacterium.

Detailed explanation-3: -Dipicolinic acid is a chemical that helps to sustain dormancy and resistance for endospores. 5 to 15 percent of the dry weight of bacterial spores is composed of dipicolinic acid. Calcium dipicolinate, which is abundant inside the endospore, can stabilize and protect DNA from the endospore.

Detailed explanation-4: -During sporulation, the growing cell (also referred to as a vegetative cell) will forego normal cellular division to instead form an endospore. The term endospore is derived from the fact that the spore is formed within an intracellular compartment of the mother cell.

Detailed explanation-5: -An endospore is a dormant, tough, and non-reproductive structure produced by certain bacteria from the Firmicute phylum. Endospore formation is usually triggered by lack of nutrients, and usually occurs in Gram-positive bacteria. In endospore formation, the bacterium divides within its cell wall.

There is 1 question to complete.