Question

A complex medium is one that Choose one: A. is nutrient-rich, but the amounts and identity of specific nutrients are unknown. B. is difficult and time consuming to make. C. is designed to specifically inhibit the growth of either Gram-negative or Gram-positive cells. D. distinguishes among microorganisms based on some enzymatic or metabolic ability. E. contains specified amounts of five to ten known chemical components.

Answer 1

A complex medium is a type of growth media used in microbiology that contains extracts and digests of yeasts, meat, or plants, with an unknown and variable chemical composition. Complex media can be both selective and differential, making them a combination of both types of media.

Step-by-step explanation:

A complex medium is a type of growth media used in microbiology that contains extracts and digests of yeasts, meat, or plants, with an unknown and variable chemical composition. The amounts of individual components in a complex medium are undetermined. Examples of complex media include nutrient broth, tryptic soy broth, and brain heart infusion.

Complex media are different from chemically defined media, which have a known and defined chemical composition. Chemically defined media contain only chemically known components. Selective media favor the growth of certain microorganisms while inhibiting others, and differential media help distinguish bacteria by the color of colonies or changes in the medium. Complex media can be both selective and differential, making them a combination of both types of media. Therefore, the correct answer is D. a selective medium, a differential medium, and a complex medium.

Answer 2

Correct Answer is (D)

Step-by-step explanation:

(D) distinguishes among microorganisms based on some enzymatic or metabolic ability.

• The prokaryotic microorganisms incorporate the microscopic organisms and the archaea (or the eubacteria and archae bacteria, by more seasoned phrasing).
• The eukaryotic microorganisms incorporate the protists (protozoa), the parasites and in any event the unicellular algae.
• Mycoplasma genitalium, a parasitic bacterium which lives in the primate bladder, squander removal organs, genital, and respiratory tracts, is believed to be the littlest known life form fit for free development and multiplication.
• Microscopic organisms that expect oxygen to develop are called obligate aerobic bacteria