Protists NotesBiology 101BChapter 19

  1. Protists are not ______, ______, or ______because ______but they are ______because they all have ______.
  2. How are protists classified? ______
  3. What does the word “protozoan” mean? ______Where did the term originate? ______
  4. In what sorts of habitats do we find protists? ______
  5. How are the first protists believed to have originated? Explain. ______What is the name of this theory which you wrote about (and some drew) last semester when we discussed it previously in chapter 14?______
  6. Why are protists important in the history of life? ______
  7. What is wrong with the current method of classifying protists? ______Is it likely to change? _____ Explain. ______
  8. Complete the following chart of the Protozoans, or______protists using page 542 and section 19.2 of text.

Protozoan Name / Method of
Locomotion / Free-Living
Or Parasitic? / Habitat / Distinguishing
Characteristics / Sketch with Labeled parts
Giardia
Phylum:
Stentor
Phylum:
Paramecium
Phylum:
Amoeba
Phylum:
Plasmodium
Phylum:
Trypanosoma
Phylum:
  1. The plant-like protists are commonly known as ______. They are like plants in that they ______but unlike plants in that they lack ______
  2. Describe the types of pigments the algae contain. ______
  3. Complete the following chart for algae:

Algae group / Unicellular orMulticellular / Body Shape(draw or describe) / Movement
Caused by / Habitat / Other info/Ex.
Diatoms
Phylum:
Dinoflagellates
Phylum:
Euglenoids
Phylum:
Crysophyta
Phylum:
Brown Algae:
Phylum:
Green Algaenow part of Plant Kingdom
Phylum:
Red Algae
Phylum:
  1. How are kelp forests (one type of brown algae) important to marine organisms? ______
  2. We now classify green algae as part of the plant kingdom. What characteristics do green algae have in common with plants?______What has this lead some scientists to think? ______
  3. What is so unusual about the structure of the green algae Volvox? ______
  4. How are some red algae particularly important in our oceans? ______
  5. What are some uses for each of the algae types listed below? A) Red algae: ______B) Brown algae: ______C) Green algae: ______D) Diatoms: ______
  1. Draw and label the life cycle of Ulva below:
  1. In which other kingdoms do we find this type of life cycle? ______
  2. Define the following terms below:

alternation of generations –

gametophyte –

sporophyte –

  1. Funguslike protists are protists that have some characteristics of ______such as the use of ______to reproduce, feeding on ______and absorbing ______. They differ from fungi in the composition of their ______. In fungi, these are made out of ______, a ______which is also found in the external skeletons of ______. In the funguslike protists, the ______are made up of ______or ______compounds.
  2. Where are slime molds found? ______
  3. What colors and shapes are slime molds? ______
  4. Draw and explain the life cycle of an acellular (plasmodial) slime mold from the phylum ______below.
  1. Draw and explain the life cycle of a cellular slime mold from the phylum ______below. One example of this phylum is Dictyostelium, which is often studied by laboratory scientists.
  1. Why do we say that slime molds lead a dual existence? ______
  2. Compare and contrast acellular slime molds versus cellular slime molds using a chart, Venn diagram, or list.
  1. The phylum ______contains the ______and ______, which usually live in ______or ______. Water molds were once considered to be ______because they ______, but are different because of the composition of their ______and because they produce ______reproductive cells.
  2. Which member of this phylum has an important historical connection? ______Describe the historical significance of this organism: ______

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