Plant Biology: Bacteria, Archaea, and Viruses

Nutrition

In bacteria and archaea ________ is primarily acquired by absorption of food through the cell wall, though some can photosynthesize.

Viroids

________- circular strands of RNA that occur in nuclei of infected plant cells.

Bacteria

________ can be useful, for example in making cheese and buttermilk, various industrial uses, and biocontrol.

Reproduction

In Bacteria and Archaea ________ occurs asexually through fission, not mitosis.

Metabolism

In archaea ________ is fundamentally different from bacteria.

Cells

In bacteria and archaea ________ may be colonial or filamentous, but each ________ is independent.

Parasites

________ depend on living organisms for food.

Chemotrophs

________ obtain energy from various compounds or elements such as iron, sulfur, and hydrogen bacteria.

Cyanobacteria

________ have chlorophyll a and oxygen is produced from photosynthesis.

Cocci

spherical or elliptical shaped bacteria.

Kochs Postulates

________ are rules for proving a particular microorganism is the cause of a particular disease.

eukaryotic cells

The first ________ are 2.7 billion years old.

Saprobes

________ obtain food from nonliving organic matter.

Salt bacteria

Bacteria that thrive in extreme salinity.

Viruses

________ consist of a nucleic acid core surrounded by a protein coat.

Methane bacteria

Bacteria that are killed in the presence of oxygen.

Sulfolobus bacteria

Bacteria that survive temperatures up to 170 degrees Fahrenheit.

Gram stains

________ can be used to categorize bacteria based on dye in cell walls

virus core

A(n) ________ consists of DNA or RNA but not both.

Bacilli

rod-shaped or cylindrical shaped bacteria

Spirilla

helix or spiral shaped bacteria

Prions

particles of protein that cause diseases of animals and humans that are believed to cause disease by inducing abnormal protein folding in the brain resulting in brain damage