Question

Explain how bacteria address the following challenges and which cellular structures or components are involved and how they function. Be complete in your answers. In most instances bacteria have multiple strategies for dealing with these conditions - address as many as you can. • Harmful chemicals in the environment • Lack of moisture • Existence in an aqueous environment • Elevated temperatures • In the case of bacterial animal pathogens, white blood cells that "gobble up" the bacteria (i.e., phagocytes that engulf the bacteria.) • Acquisition of nutrients

Answer 1

The proteins are redesigned in such a way that the bacteria can withstand elevated temperatures.

Living in dessicated environment, this adaptation is due to their amino acid composition that affects the ability of protein folding.

Endospores help bacteria survive chemical stresses,in aqueous environment too.

Glycocalyx protect bacteria from engulfment.Presence of slime layer and capsule surround the cells and keep it protected.

Bacteria colonize the plant surfaces and obtain nutrients. They enter through stomata,nectarthodes,hydathodes etc for acquisition of nutrients.