Biology final Bacteria and Viruses

Microbes

microscopic organisms, such as
bacteria, viruses, and protists

bacteria

contribute to the production of yogurt,
cheese, bread, beer, wine, and many pickled foods

true

True or false: Without the activity of decomposers, the biosphere
wouldn’t exist

Pathogens

disease-causing agents

Bacteria

single-celled, prokaryotic organisms

Coccus, Bacillus, and Spirillum

three common shapes of bacteria

coccus

sphere shaped

bacillus

rod shaped

spirillum

curved-spherical shaped

cell wall

most bacteria have what in addition to the plasma membrane

Viruses

very small, nonliving, must reproduce inside of a host cell, and carry the genetic information needed to reproduce

capsid and nucleic acid

two parts of a virus

RNA

In contrast to cellular organisms, viral genetic
material can be DNA or

Cellular parasites

commandeer the metabolic
machinery of a host cell

enzymes and ribosomes

a viruses relies on the hosts what for its own reproduction

genes

the virus has what that code of enzymes needed for the virus to reproduce and exit the host cell

epidemic

more cases than expected in a certain
area for a certain period of time

Outbreak

an epidemic confined to a local area

pandemics

global epidemics are called

Emerging viruses

are viruses that have
suddenly come to the attention of science