Question

13) The basic unit of bacterial measurement is the (1 pts) Omillimeter O micrometer O nanometer angstrom 14) The bacteria characterized by a very small size and pleomorphism are the (1pts) O mycobacteria mycoplasms Ospirochetes Ostaphylococci O streptococci 15) Spiral-shaped bacteria occur predominantly as (1pts) O diplobacilli clusters O filaments O palisades O single cells 16) Which of the following statements regarding bacterial capsules is/are true? (1 pts) the size of the capsule is related to the medium in which the bacterium is grown The capsule is predominantly composed of dipicolinic acid and resists dehydration of the spore The capsule is composed of insoluble metal compounds like ferric oxide OTwo of the above are correct. O All of the above are correct.

PLease answer all..... Thank you

Answer 1

13) Micrometer

The basic unit of the bacterial measurement is the micrometer.The size of bacteria ranges from 0.3 to 5 microns.

14).Mycoplasma

The bacteria characterized by pleomorphism have the ability to change the shape and size for adapting in different environment.The mycoplasma is gram negative and of size of 1.0 micrometer.

15)single cells

The diplobacilli is the rod shaped bacteria occurs in pair.The spiral shaped bacteria occurs in single cell.Cocci round shaped bacteria forms the clusters. Palisades are formed by the bacilli.

16)The capsule is predominantly composed of dipicolinic acid and resists dehydration.

The endospore is named for the bacterial capsule surrounding the bacteria.It is made up of dipicolinic acid which forms the complex with the calcium ions in the endospore core ,providing the resistance to dehydration and maintain dormancy.