Day 44, pp. 555 to 556, Diplomonadida, Parabasala, Euglenozoa -- long one

 For this section on protists, which are simple and varied eukaryotic organisms, keep an eye on the phylogeny charts.

Look at figure 28.7, with bacteria, archaea, and eukarya.

Now we're going to "zoom in" on the eukaryote part.

Look at figure 28.8.  At the bottom, you see this is the branch with all the eukaryotes.  At the top are a lot of different kinds of eukaryotes that we'll study now, and then also plants, fungi, and animals, which we'll study later.

Look to the far left, you will see the category "diplomonadida" and the category "parabasala".  At the top of page 555, you "zoom in" on those two.  For each section and kind of protist, we zoom in on a new branch of eukaryotes.

Evolution of eukaryotes (13)

Protist Diversity (6)

Phylogeny (8)

Diplomonads (2)

Giardia (2)

Giardia (5)

parabasalids (5)

euglenoids (2)

chagas (3)

sleeping sickness (4)

sleeping sickness (3)

Quiz, pp. 555 to 559:

1.  Diplomonadida and parabasala are protistan groups that lack m____________ .  We now think they l_______ them.

2.  Giardia is a kind of diplomonadida parasite that people and animals swallow in the c________ form in water, it causes severe diarrhea.  

3.  Trichomonas vaginalis uses an undulating membrane and f__________ to move along the skin of tissue it has infected.

4.  Euglenoids can be photosynthetic (getting energy from l_______) or heterotrophic.  Copy the definition of heterotroph here, using the glossary at the end of the book.

5.  Sketch simply euglena from figure 28.3

6.  The kinetoplastids include Trypanosoma, which is carried by the t_______ f_________ and causes s________ sickness.  Sketch a Trypaosoma organism from figure 28.11.

7.  How does the sleeping sickness protist avoid being killed off by the human body?