Bood Agar Flashcards
What is Blood Agar?
Blood Agar is a rich growth medium that supports the growth of a wide variety of fastidious organisms and is used for the cultivation of bacteria.
True or False: Blood Agar is used to differentiate between hemolytic and non-hemolytic bacteria.
True
What type of blood is typically used in Blood Agar?
Sheep blood is typically used in Blood Agar.
Fill in the blank: Blood Agar contains __________ as a nutrient source.
blood
What are the three types of hemolysis observed on Blood Agar?
Alpha, beta, and gamma hemolysis.
Which type of hemolysis is indicated by a clear zone around colonies on Blood Agar?
Beta hemolysis.
What color change indicates alpha hemolysis on Blood Agar?
A greenish discoloration around the colonies.
What does gamma hemolysis indicate?
Gamma hemolysis indicates no hemolysis.
True or False: Blood Agar can be used for the growth of fungi.
False
What is the primary purpose of using Blood Agar in microbiology?
To isolate and identify hemolytic bacteria.
Which bacteria are commonly tested using Blood Agar?
Streptococcus and Staphylococcus species.
Fill in the blank: Blood Agar is classified as a __________ medium.
enriched
What is the role of the blood component in Blood Agar?
It provides nutrients and growth factors essential for bacteria.
True or False: Blood Agar can be used to culture anaerobic bacteria.
True
What is the usual incubation temperature for Blood Agar plates?
37 degrees Celsius.
What is the significance of using Blood Agar for clinical diagnostics?
It helps in identifying pathogenic bacteria that may cause infections.
Multiple Choice: Which of the following is NOT a type of hemolysis observed on Blood Agar? A) Alpha B) Beta C) Delta D) Gamma
C) Delta
Fill in the blank: Blood Agar is often used in conjunction with __________ media for better differentiation.
selective
What is the appearance of beta-hemolytic Streptococcus pyogenes on Blood Agar?
Clear zones around the colonies.
True or False: Blood Agar can support the growth of both aerobic and anaerobic bacteria.
True
What biochemical test is commonly performed after culturing on Blood Agar to further identify bacteria?
Catalase test.
Multiple Choice: Which of the following is a characteristic of alpha-hemolytic bacteria? A) No color change B) Greenish discoloration C) Clear zone D) Red color
B) Greenish discoloration
What is the effect of temperature on the growth of bacteria on Blood Agar?
Higher temperatures can enhance growth rates, while lower temperatures may inhibit growth.
