Bacteria and viruses

Question 1

Prokaryote

Answer 1

A prokaryote is a single-celled organism whose cell lacks a nucleus and other membrane-bound organelles.

Question 2

Bacilli

Answer 2

Bacillus is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum Bacillota, with 266 named species.

Question 3

Cocci

Answer 3

any spherical or roughly spherical bacterium.

Question 4

Spirilla

Answer 4

Spirillum is a of Gram-negative bacteria in the family Spirillaceae of the Nitrosomonadales of the Betaproteobacteria.

Question 5

Binary Fission

Answer 5

Fission, in biology, is the division of a single entity into two or more parts and the regeneration of those parts to separate entities resembling the original.

Question 6

Endospore

Answer 6

Endospores are spores that are formed within the cells, mainly in bacteria.

Question 7

Nitrogen fixation

Answer 7

Nitrogen fixation is a chemical process by which molecular dinitrogen is converted into ammonia

Question 8

Bioremediation

Answer 8

a branch of biotechnology that employs the use of living organisms such as microbes and bacteria to decontaminate affected areas.

Question 9

Antibiotic

Answer 9

a medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms.

Question 10

Pathogenic bacteria

Answer 10

Pathogenic bacteria are bacteria that can cause disease.

Question 11

Virus

Answer 11

an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.

Question 12

Host

Answer 12

a living animal or plant on or in which a parasite lives.