Name: ______
Date: ______

Unit 3 – Notes #2 Plant-Like Protists (PHYTOPLANKTON) and Fungi-Like Protists

A) PHYTOPLANKTON- ______
______
______. Algae can include members
belonging to Kingdom ______and Kingdom ______

-______
______. The majority of phytoplankton consist of unicellular eukaryotes belonging to Kingdom Protista

- Plant-like protist characteristics:

a) ______to help ______

b) Many possess a cell wall

c) Inhabit aquatic environments or moist soil.

1. Phylum – ______


- Have both plant (______) and animal (______
______) characteristics.


- Most common example : ______


- ______

-They may photosynthesize using 10-20 chloroplasts if light is available, but
______(a small opening near flagellum) when necessary.

- Possess a______
______, use single flagellum to move toward light-filled environment.

- Euglenoids have a semirigid plasma membrane called a ______

2. Phylum – ______

- Most commonly found in salt-water environments.


- Many species are ______


- Only ______
______


- Most common examples : The ______


- Most have a brownish colour due to accessory pigments and most possess two flagella.

- Dinoflagellates belonging to ______
______
______
______

- This paralytic shellfish poisoning may pass up the food chain causing death to the consumers.


- ______

3. Phylum – ______

- Include ______


- Most members ______rather than as starch.


- Diatoms produce______, which does not decompose.

- Much of the world’s petroleum was formed from diatoms that lived 300 million years ago.

B. FUNGI-LIKE PROTISTS – ______

1. Phylum - ______


- ______that spend the majority of their time as a unicellular animal-like protist. They creep around ______
______

- When conditions are unfavourable they aggregate to form a large mass of cells that acts like a single organism. It moves like a pulsating slimy blob which may grow up to a diameter of 45 cm.

- This______
______. These
______bodies will begin to ______

Spores à germination à ameba-like cell.

- Found in rotting wood, compost, and thick moist lawns.

2. Phylum – ______

- Found in same environments as Acrasiomycota.


- Amoeba-like cell divides for several generations, ______
______


- The cell gets very large and is called a ______(______


______


______)– A giant multinucleated amoeba-like cell.

- When conditions become unfavourable, the plasmodium forms fruiting bodies to
produce ______which germinate into flagellated cells that
move to fuse with another such cell. à to form ______amoeba-like cell.

C) LIVING WITH PLANT-LIKE PROTISTS

a. Harmful Relationships: Very few are parasitic but they may still cause a few problems.

i) Most Euglenophytes thrive in nutrient rich water, when temperature is right they
produces ______
______
______

ii) When dinoflagellates bloom they cause a condition known as “Red Tide”. This
toxin builds up in shellfish which may result in the ______
______

b) Helpful Relationships.

i) Most phytoplankton play a crucial role in producing food and they ______
______

- ______


These phytoplankton provide nourishment for everything from shrimp ßà whales. The role that plant-like protists play in oxygen production is priceless!