Leader: Kirsten Karkow
Course: Biol 211 - Wilsey
Date: 1/23/2012
Worksheet 4 – Protists Part 1
Supplemental Instruction
Iowa State University
Circle the correct answer(s):
1. Protists are (more diverse / less diverse / as diverse) than/as other eukaryotic kingdoms.
2. Protists are (unicellular / colonial / multicellular).
3. Protists are (autotrophs / heterotrophs / mixotrophs).
4. Protists can live in (dry / slightly moist / wet) environments.
5. Protists are (primary producers / primary consumers / decomposers).
Define the following terms:
Secondary Endosymbiosis –
Pseudopodia –
PROTISTS
Supergroup 1: Excavata
Named for _____________________________________________________.
Includes:
a.
N
P
S
D S
– have a large mitochondrion
that contains an organized mass of DNA known as a kinetoplast.
Example: T


b.
G L
S
A
Causes “sleeping sickness”
Vectored by the tsetse fly.
I
D
– flagellated organisms
that are often mixotrophs.
Supplemental Instruction
1060 Hixson-Lied Student Success Center  294-6624  www.si.iastate.edu
Supergroup 2: Alveolata
Named for _____________________________________________________.
Includes:
a.
C
A
S – organisms that use cilia to move and feed. These
organisms have two nuclei: a M
C
for everyday functions and a M
fsdkf
N
C
O
for
C L
sexual reproduction.
Examples:
P
b.
P
R
M
C O
M
E X
S
T E
O
– parasites that have an apex that
contains a complex of organelles specialized for penetrating host tissues. Usually
have intricate lifestyles.
Example:


N
c.
P
A S
D
Causes malaria.
Vectored by mosquitos.
F
G E
L
S
– characterized by cells
reinforced by cellulose plates. Population booms lead to red tides that kill marine
wild life.
Supergroup 3: Stramenopila
Named for _____________________________________________________. Contain a
smooth flagellum as well.
Includes:
a.
b.
I
S – algae with walls made of silica.
T
B
W
G A
– the largest, most complex algae.
Sometimes called “kelp” or “seaweed”.
O
c.
Y C
S
– misnamed as “egg fungus”, but actually have cell
walls made of cellulose. Includes water molds, white rusts, and downy mildews. These
organisms are responsible for the Irish Potato Famine and Sudden Oak Death.
Supergroup 4: Rhizeria
Named for _____________________________________________________.
Includes:
a.
F
R
M
E R
N S –
organisms with porous shells through which pseudopodia
can extend. These often indicate oil deposits.
b.
R
I
L
I
N S
– have delicate skeletons from which
pseudopodia radiate. These look like sunbursts.
Supergroup 5: Amoebozoa
… continued next time …