1. Introduction to Microbiology

Plants and algae are very similar, however algae…

Under what conditions can the saprophytes Aspergillus and Rhizopus cause infections?

Give one possible explanation of why Penicillium would make penicillin, given that the fungus does not get bacterial infections.

Which of the following microorganisms are not eukaryotic?

a) Bacteria

b) Yeasts

c) Molds

d) Protozoa

Which of the following are not characteristics of eukaryotes? Select all that apply.

a. They are generally simpler than prokaryotes.

b. They can be multicellular.

c. They all have a nucleus.

d. They tend to have multiple chromosomes.

e. They can have a cell wall.

f. They include pathogens.

g. They divide by mitosis.

h. They make up the Domain Archaea.

i. They make up the Domain Bacteria.

j. They make up the Domain Eukarya.

Most roundworms are dioecious. What does this term mean? To what phylum do roundworms belong?

Why are relatively large animals such as parasitic worms studied in microbiology?

Indicate the true statements about eukaryotic cells and then reword the false statements so that they are true.

a. Eukaryotic cells have 70S ribosomes on the rough endoplasmic reticulum.

b. Eukaryotic cells sexually reproduce by mitosis.

c. Eukaryotic cells can make up unicellular or multicellular organisms.

d. Eukaryotic cells always have a cell wall.

e. Eukaryotic cells can be photosynthetic.

f. Eukaryotic cells use fimbriae for motility.

g. Yeast is a multicellular eukaryote.