Shapes & Structures
What are the 3 most common shapes of bacteria?
Bacilli, Cocci, and Spirilla
This type of genetic variation for prokaryotic cells occurs when cells take up pieces of DNA from their environment.
What is transformation?
The number of cells a virus has.
What is zero?
Prokaryotes do not have this.
What is a nucleus?
____ is a microscopic particle that gets inside a cell and often destroys the cell.
Virus
______ are rod shaped. They have a large surface area, which helps them take in nutrients.
Bacilli
_____ is reproduction in which one single-celled organism splits into two single-celled organisms.
Binary Fission
Which is larger, bacteria or a virus?
What is a bacteria?
Two very common foods, mainly made from dairy that bacteria help make.
What is cheese & yogurt?
_____ is an organism from which a parasite takes food or shelter.
______ are long and spiral shaped. They use flagella at both ends to move like a corkscrew.
Spirochetes
What cycle is it when a virus attacks living cells and turns them into virus factories?
The Lytic cycle
Where is the only place viruses can reproduce?
What is inside a host cell?
______ used to clean up industrial, agricultural, and municipal wastes.
Bioremediation
_____ are medicines used to kill bacteria and other microorganisms.
Antibiotics
______ are spherical. They do not dry out as quickly as rod-shaped bacteria.
Cocci
When the host cell divides during ____, each new cell carries the genetic material of the virus.
The Lysogenic cycle
Viruses are not considered to be living because they do not ______, ______, and _____.
eat, grow, and breathe.
__________ is the process by which nitrogen gas in the air is transformed into a form that plants can use.
Nitrogen-fixation
Some bacteria have hairlike structures called ______ that help them move around.
flagella
What is conjunction?
Every virus is basically some form of genetic material enclosed in _______.
What is a protein coat?
What are 2 types of archaebacteria?
thermophile (heat lovers) & halophiles (salt lovers)
Microorganisms that cause disease.
What are pathogens?