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Most pathogenic organisms will grown on chocolate agar, it depends mostly on the incubation conditions i.e. temperature, presence/absence of oxygen etc. However there are some fastidious organisms that require certain growth factors to grow.
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∙ 11y agoHAEMOPHILUS
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What types of organisms could grow on Endo agar?
Since Endo Agar selects for Gram negative (-) organisms, and differentiates for lactose, lactose += red colonies and surrounding medium, also coliforms produce a golden metallic green sheen, E. Coli is one example of a microorganism that could grow on Endo Agar.
Can fastidious organism be grown on a general purpose medium?
No because fastidious organisms, or organisms that have highly elaborate and specific nutritional needs, do not grow on a general purpose medium because they require the addition of one or more growth-supporting substances, enrichments such as additional plant or animal extracts, vitamins, or blood.
Which bacteria forms pink colonies in nutrient agar plates?
Nutrient agar is a general purpose medium supporting growth of a wide range of non-fastidious organisms. Most any bacteria will grow on it.An example of a fastidious organism is Neisseria gonorrhea, which requires blood or hemoglobin and several amino acids and vitamins in order to grow.
If an organism can grow on both a nutrient agar and a MacConkey Agar on which would you expect it to grow better?
The organism would be expected to grow better in nutrient agar. Nutrient agar is rich in nutrients and microorganisms grow well when there is availability of nutrients.
What does it mean to inoculate an agar plate?
to inoculate an agar plate you would place bacteria on the agar to grow
Why fastidious organism grow poorly in chemically defined medium?
because fastidious organisms require specific nutrients that can not be supplied to them in the chemically defined medium therfore dont grow as well
What gram positive cocci fails to grow on blood agar but grows well on chocolate agar?
Haemophilus influenzae
Why 7.5 percent sodium chloride agar is selective media?
Because 7.5% NaCl agar inhibits gram negative organisms from growing, and is "selective" in that only gram positive organisms can grow in this type of agar.
Can Klebsiella pneumoniae grow on Mannitol salt agar?
No, K. pneumoniae will not grow on Mannitol Salt Agar- gram negative organisms cannot grow on MSA, and K. pneumoniae is gram negative.
What is the composition of modified nutrient glucose agar media?
Modified nutrient glucose agar is composed of agar, water, glucose, extracts, peptone and sodium chloride. Modified nutrient glucose agar allows organisms to grow.
What types of organisms could grow on Endo agar?
Since Endo Agar selects for Gram negative (-) organisms, and differentiates for lactose, lactose += red colonies and surrounding medium, also coliforms produce a golden metallic green sheen, E. Coli is one example of a microorganism that could grow on Endo Agar.
Is moraxella catarrhalis haemolytic?
Morazella catarrhalis is non-hemolytic, but will grow on chocolate blood agar plates.
Why is the nutrient agar used?
In Microbiology? Because the nutrient agar allows for the bacteria/organisms to grow in a controlled environment/substance. It also allows you to monitor the growth.
What are different types of microbiological media?
There are various types of microbiological media used for culturing microorganisms, such as agar plates for solid media, broth for liquid media, selective media to encourage growth of specific organisms, differential media to distinguish different types of organisms based on their growth characteristics, and enrichment media to help grow fastidious microbes.
Can fastidious organism be grown on a general purpose medium?
No because fastidious organisms, or organisms that have highly elaborate and specific nutritional needs, do not grow on a general purpose medium because they require the addition of one or more growth-supporting substances, enrichments such as additional plant or animal extracts, vitamins, or blood.
Which bacteria forms pink colonies in nutrient agar plates?
Nutrient agar is a general purpose medium supporting growth of a wide range of non-fastidious organisms. Most any bacteria will grow on it.An example of a fastidious organism is Neisseria gonorrhea, which requires blood or hemoglobin and several amino acids and vitamins in order to grow.
Why use Azide blood agar MacConkey agar and Nutrient agar plates for identification of microorganisms?
Azide blood agar base contains sodium azide which has been proved to have a bacteriostatic effect on Gram-negative bacteria, thus this medium is used for the isolation of streptococci and staphylococci in clinical specimens, water, foods, etc. MacConkey agar is designed to grow Gram-negative bacteria and differentiate them for lactose fermentation. Nutrient agar is used for the routine cultivation of non-fastidious bacteria.
