Test
MicroLab MidTerm Blake Tedford
Crea una cuenta gratis para terminar este test
Guarda tu progreso y consulta tu resultado final.
¿Ya tienes cuenta? Inicia sesión
Preguntas del test (18)
1Who was the first person to grow bacteria on an Agar Petri dish?
- ARobert Koch
- BJoseph Lister
2Demonstrated the ubiquitous (found everywhere) nature of microbes.
- ARobert Koch
- BLouis Pasteur
- CJoseph Lister
3Illustrated the importance of hand washing and the antiseptic technique to prevent the spread of contamination.
- AIgnaz Phillip Semmelweis
- BJoseph Lister
- CRobert Koch
- DBoth a and b.
4Match the shapes: diplococcus
- AChains
- BPairs
- CIrregular grape-like clusters
5Match the shapes: streptococcus
- AIrregular grape-like clusters
- BChains
- CPairs
6Match the shapes: staphylococcus
- AChains
- BIrregular grape-like clusters
- CPairs
7Have THIN cell walls surrounded by thick plasma membrane.
- AGram-Negative Bacteria
- BGram-Positive Bacteria
8Can be decolorized to accept counter stain.
- AGram-Positive Bacteria
- BGram-Negative Bacteria
9Has Teichoic acids present.
- AGram-Negative Baxter
- BGram-Positive Bacteria
10Why do gram-positive bacteria retain crystal violet primary stain at a much higher rate than gram-negative bacteria?
- ABecause gram-positive bacteria have thicker cell walls.
- BBecause they have no cell walls.
11Iodine acts as a __________in the gram stain.
- AMordant
- BDecolorizer
- CCounterstain
12Iodine fixes the color acting as a mordant for the crystal violet.
- ATrue
- BFalse
13Red dye (Safranin) is used to stain gram-negative bacteria?
- AVerdadero
- BFalso
14A dormant and non-productive structure that is produced by a bacteria from the Firmicute Phylum.
- AGram-positive bacteria
- BGram-negative bacteria
- CPrions
- DEndospore
15Bacillus and Clostridium are bacteria can lay dormant for centuries, until favorable conditions arise, then reactivates into a vegetative state.
- AVerdadero
- BFalso
16Can survive with no nutrients, are resistant to ultraviolet radiation, disicissation, high temperature, extreme freezing and chemical disinfection.
- AFungis
- BPrion
- CEndospore
- DAerobic bacteria
17What does Manitol Salt Agar (MSA) select for?
- AGram-negative bacteria
- BStaphylococci and Micrococcaceae
- CBacilli
18What does Esosine Methylene Blue Agar(ESB) select for?
- AGram positive bacteria
- BGram negative bacteria
- CStaphylococcus and Micrococcaceae
Información
- Descripción
- Test sobre MicroLab MidTerm Blake Tedford, creado por Gabrielle Gossett el 18/10/2017.
- Autor
- Gabrielle Gossett
- Idioma
- English
- Visitas
- 0
- Valoración
- Aún sin valoraciones Valora este test