Question

The Greek term for "worm" is __. The possession of both sexes in one individual is __. The most prevalent protozoan disease is __. The theory that states that mitochondria and chloroplasts were free living bacteria that invaded larger bacteria to form eukaroytes is called ___. Mitochondria have ___ ribosomes. What are the three types of diseases caused by the gram positive spore producing Bacillis anthrasis? Comment on the relative severity of of each disease Describe the macroscopic morphology and microscopic morphology of a gram stained speciman of Bacillis anthrasis.

Answer 1

1. Greek word for worm is σκουλήκι (skoulíki)

2. Both sex in one individual -Hermaphrodite

3. Malaria is a very common disease in developing countires

4. 29. that theory is called Viral Theory and Endosymbiosis by Cohen WD, Gardner RS (1959).

5. mitochondria will closely resemble the bacterial 70S ribosome

6. there are three types of anthrax

Cutaneous (Most common least dangerous.) Infection usually develops from 1 to 7 days after exposure), gastrointestinal and respiratiory (most deadly form of anthrax and most common)

The cells of bacillus anthrax will have characteristic squared ends arranged in sequences. The ellipsoidal shaped endospores located centrally in the sporangium. The spores are resistant to staining.

B. anthracis colony characteristics

1. Non-hemolytic on sheep blood agar.

2. 2-5mm

3. non-pigmented, dry ground glass surface, edge irregular with comma projections, “Medusa Head”.