Exam 22: Microorganisms: The Archaea, Bacteria, and Protists

An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample.Inspection of the microorganism with a compound microscope reveals that it uses pseudopodia for movement and is not enclosed within a mineral shell.Based on this information,this organism can be classified to which supergroup?

Archaea,Bacteria,and Eukarya are:

You have discovered a new species of bacteria.Its characteristics include a thick peptidoglycan layer and the ability to produce antibiotics.What do you think is true about this species?

Which of the following diseases is NOT caused by endospore-forming bacteria?

The human microbiome is:

Bird influenza is an emerging disease.If you were given the task of using Koch's postulates of finding the pathogen causing bird flu,what sequence of procedures should you use?

Cyanobacteria,or blue-green algae,are considered the most ancient organisms capable of photosynthesis.Given what you know about cyanobacteria,which of the following is the more similar species?

Which of the following is NOT true of horizontal gene transfer?

Plants share a most recent common ancestor with what group of protists?

Which of the following statements best describes secondary endosymbiosis?

The collars on the cells of choanoflagellates have the function of:

Slime molds are in the supergroup

Phagocytosis is:

Some algae are more closely related to plants than they are to other algae.

Fungus-like protists are more related to true fungi in the supergroup Opisthokonta than they are to members of any other supergroup.

A pharmaceutical company develops a drug inhibiting mitosis of sporozoites in an effort to prevent malaria.How would this affect the next step of the infection cycle of Plasmodium falciparum?

Plasmodium falciparum sporozoites produce merozoites in the human

Nitrogenase is the enzyme that is responsible for nitrogen fixation.In cyanobacteria,where is this enzyme likely to carry out nitrogen fixation?

The symptoms of malaria are

Stramenopiles are unique in that they possess: