A
What is one characteristic all protists have in common?
membrane-bound nuclei and organelles
Why are protists difficult to classify?
Variety of body forms, movement, feeding and reproduction
List two protists that cause human disease and what they cause
Giardia (vomiting and diarrhea)
Dinoflagettlates (red tide)
Plasmodium falciparum (malaria)
How is movement from cilia different from movement by flagella?
Flagella - whip like
Cilia - move in waves
describe amoeboid movement
cytoplasm bulges to pull the organism along
True or false: protists are both consumers and producers
True
How do protists digest their food?
Encasing it in a vacuole
How do most protists reproduce?
asexually by mitosis
Describe conjugation
protists join together to exchange DNA
What are two important roles of plankton?
food for ocean organisms and source of oxygen
What is evidence that protists aren't "lower" life forms?
They perform a variety of functions without a nervous system
All protists are:
a. consumers b eukayotes
C. producers d. prokaryotes
B eukaryotes
True or false; all protists are microscopic
False
List 3 ways protists move
flagella, pseudopod, cilia
True or False; some protists can produce sexually and asexually
True