In: Biology
Correct the following sentences to make them true (3 pts/each): (type the correct sentence in the box)
11. Bacteria organize their ribosomes on one or more linear chromosomes.
12. A commensal organism will damage the host while the organism benefits.
13. Bacteriocidal drugs prevent the growth of bacteria but do not kill them.
14. The human microbiome only includes viruses and bacteria.
15. Short runs and long tumbles will help move a bacterial cells toward a target.
11. Bacteria organize their ribosomes on their single circular DNA and plasmid.
In prokaryotes, DNA is organized into a single circular chromosome. Plasmid is extrachromosomal DNA that is separated from the genomic DNA and can be linear or circular.
12. A commensal organism will not damage the host organism which neither benefits or suffers.
Commensalism is a symbiosis in which members of one species gain benefits while those of the other species neither benefit nor harmed.
13. Bacteriocidal drugs kill the bacteria
Bactericidal (bacteria-killing) drug, a bacteriostatic (bacteria-inhibiting) drug
14. The human microbiome not only includes viruses and bacteria but also archaea, fungi and protists.
15. Long runs and frequent tumbles will help move a bacterial cell towards a target.
It is the balance between the smooth-swimming (runs) and tumbling (change in direction) states is regarded as a critical parameter in determining the ability of bacteria to carry out chemotaxis.
References:
https://www.wikilectures.eu/w/Prokaryotic_Chromosomes
https://en.wikipedia.org/wiki/Commensalism
https://www.sciencedaily.com/releases/2004/10/041021083250.htm
https://en.wikipedia.org/wiki/Human_microbiome
https://jb.asm.org/content/jb/172/2/1099.full.pdf