Module 2 part 2 (Apologia Biology) VHSG

A bacterium is Gram negative and needs light to survive. It lives in a habitat that is completely oxygen-free. To what phylum and class does it belong?

• phylum Gracilicutes, class Anoxyphotobacteria.

• phylum Thallobacteria, class Anoxyphotobacteria

• phylum Firmicutes, class Mollecutes

• phylum Tenericutes, class Mollecutes

A bacterium receives a new trait that it did not previously have. However, it did not participate in conjugation. How is this possible?

• It is in Phylum Mendosicutes

• It is in Trichonymphia

• Transformation or transduction occured

• It is in Phylum Chrysophtya

Two different species of bacteria attempt to infect an organism. One succeeds, while the other is destroyed by the organism's infection-fighting mechanisms. What is most likely the major difference between these two bacteria?

• pili

• flagellum

• plasma membrane

• capsule

If a sample of food is dehydrated, what condition for bacterial growth are you removing from the food?

• darkness

• nutrition

• moisture

• moderate temperature

A bacterium has a complex cell wall. To what phylum does it belong?

• Firmicutes

• Mendosicutes

• Gracilicutes

• Tenericutes

Match the names of the structures to the diagram.

• 2 – pilus 3 – flagellum 4 – plasma membrane 5 – DNA

• 2 – DNA 3 – flagellum 4 – plasma membrane 5 - pilus

• 2 – flagellum 3 - DNA 4- pilus 5 - plasma membrane

• 2 – plasma membrane 3 - pilus 4 - DNA 5 - flagellum

A bacterium is classified as Gram-positive. To what phylum does it belong?

• Firmicutes

• Tenericutes

• Mendosicutes

• Gracilicutes

What shape is a bacterium from the genus Streptobacillus?

• helix

• rod

• cone

• sphere

The DNA and other essential parts of a bacterium coated with several hard layers

• plasma membrane

• endospore

• plasmid

• plasmodium

A bacterium suddenly cannot manufacture proteins. What component(s) of the cell is (are) not working?

• saprophyte

• fimbria

• plasmid

• ribosomes