Microbial Culture and Media Quiz

<p>The coloration or pH change in the medium (B)</p> Signup and view all the answers

<p>The lowest concentration of an antibiotic that prevents visible bacterial growth (B)</p> Signup and view all the answers

<p>To multiply microbial organisms under controlled conditions. (A)</p> Signup and view all the answers

<p>Complex culture media (B)</p> Signup and view all the answers

<p>It has solidifying properties from red-purple marine algae. (D)</p> Signup and view all the answers

<p>Selective media (B)</p> Signup and view all the answers

<p>Synthetic culture media (C)</p> Signup and view all the answers

<p>Morphology of the colonies and antimicrobial susceptibility. (C)</p> Signup and view all the answers

<p>Complex media contain unknown amounts of nutrients. (C)</p> Signup and view all the answers

<p>Artificial growth media (D)</p> Signup and view all the answers

<p>Physiologically stable upon usage and storage (B)</p> Signup and view all the answers

<p>100°C (A)</p> Signup and view all the answers

<p>To maintain the Log growth phase of a bacterial population (C)</p> Signup and view all the answers

<p>The efficacy of the antimicrobial agent used (C)</p> Signup and view all the answers

<p>Mueller-Hinton agar (D)</p> Signup and view all the answers

<p>Lysis of erythrocytes (C)</p> Signup and view all the answers

<p>10 µL (A)</p> Signup and view all the answers

<p>To test bacteria’s ability to lyse red blood cells (D)</p> Signup and view all the answers

A technique used to multiply microbial organisms like bacteria and fungi by allowing them to reproduce in a controlled lab environment.

The study of microbial cultures helps in isolating and cultivating bacteria, understanding their morphology, and determining their susceptibility to antibiotics.

Materials that provide nutrients and conditions necessary for microorganisms to grow and multiply in the lab.

Culture media classified by their physical form (liquid, solid, or semi-solid).

These media contain unknown amounts of nutrients, often including components like blood, serum, or yeast extract.

These media have a precisely defined chemical composition, with all ingredients known and measured.

A type of solid culture media, made from a complex carbohydrate extracted from seaweed, used to solidify nutrient solutions.

The appearance of a liquid culture media, characterized by cloudiness due to the growth of microorganisms.

The area around an antibiotic disk where bacteria cannot grow due to the antibiotic's effect. It's measured to assess the antibiotic's effectiveness.

A type of media that allows only specific bacteria to grow, while suppressing the growth of others. It's useful for isolating certain bacteria from a mixture.

A type of media that helps identify bacteria based on their unique characteristics. It usually contains substances that cause visible changes in the media, like color changes, based on the bacteria's activity.

A type of media specifically designed for growing Mycobacteria, which are bacteria that cause diseases like tuberculosis. It contains ingredients that both nourish the Mycobacteria and inhibit the growth of other bacteria.

A type of agar that contains a mixture of chromogenic substrates that are metabolized by different bacterial species, resulting in the production of distinct colors. This facilitates the identification of bacteria in a mixture.

A type of solidifying agent used in culture media, particularly for bacterial growth. It remains stable at room and body temperatures, non-toxic to bacteria, and resistant to degradation. It liquifies at 100°C and solidifies upon cooling to 50°C.

The visible growth of bacteria on a solid medium, often appearing as distinct isolated spots.

A graphical plot depicting the growth of a bacterial population over time. It showcases distinct phases, including lag, logarithmic (exponential), stationary, and death phases.

A device used to cultivate microorganisms under controlled conditions, allowing for continuous growth. It involves a constant supply of fresh medium and removal of waste products.

The measurement of the susceptibility of bacteria to antimicrobial agents, often performed on agar media.

A type of agar-based media used for testing antibiotic susceptibility of bacteria. It allows clear zones of inhibition around antibiotic discs, indicating bacterial sensitivity.

A method for testing bacterial susceptibility to antibiotics. It involves placing antibiotic discs on an agar plate containing bacteria, measuring the clear zone of inhibition formed around the disc.

A test used for detecting the presence of bacterial enzymes, like hemolysins, that can lyse red blood cells. It utilizes blood agar plates.