SESIÓN 03 ESTRUCTURA Y REPLICACIÓN (MULTIPLICACIÓN) DE LAS BACTERIAS. OBJETIVOS:

Question 1

What is the name of the cross wall that divides the daughter bacteria into two cells?

Answer 1

• Septum; two membranes separated by two layers of peptidoglycan.

Question 2

Which type of bacteria (and species) are the only ones capable of spore formation?

Answer 2

• Some Gram (+) [but never Gram (-)]. The Bacillus anthracis and Clostridium tetani or botulinum.

Question 3

What triggers the formation of spores?

Answer 3

• When conditions are unfavorable (e.g. depletion of nutrients).

Question 4

What are some things that are contained inside a spore?

Answer 4

• Complete copy of the chromosome, bare minimum of essential proteins and ribosomes, and high concentration of calcium bound to dipicolinic acid.