Bacteria and virus

Question 1

Prokaryote

Answer 1

a single-celled organism that lacks a nucleus and other membrane-bound organelles.

Question 2

Bacilli

Answer 2

a taxonomic class of bacteria that includes two orders, Bacillales and Lactobacillales

Question 3

Cocci

Answer 3

spherical or round-shaped bacteria.

Question 4

Spirilla

Answer 4

a bacterium with a rigid spiral structure, found in stagnant water and sometimes causing disease.

Question 5

Binary Fission

Answer 5

asexual reproduction by a separation of the body into two new bodies.

Question 6

Endospore

Answer 6

asexual cells that are formed within single cells and in hyphae, and seem to arise by budding

Question 7

Nitrogen fixation

Answer 7

a chemical process by which molecular nitrogen, which has a strong triple covalent bond, is converted into ammonia or related nitrogenous compounds

Question 8

Host

Answer 8

a living organism that acts as a harbour for invading pathogenic organisms.

Question 9

Virus

Answer 9

a submicroscopic infectious agent that replicates only inside the living cells of an organism.

Question 10

Pathogenic bacteria

Answer 10

bacteria that can cause disease

Question 11

Bioremediation

Answer 11

the use of either naturally occurring or deliberately introduced microorganisms or other forms of life to consume and break down environmental pollutants, in order to clean up a polluted site.

Question 12

Antibiotic

Answer 12

medications that destroy or slow down the growth of bacteria. Doctors prescribe them to treat bacterial infections.