PROTISTS (lesson five)

Question 1

what are Protists

Answer 1

simple eukaryote organisms that don’t fall under plants, animals, or fungi.

Question 2

are protists diverse?

Answer 2

yes, protists are the most diverse kingdom of eukaryotes.
protists can be:
- small or large
- -Stationary or mobile
-Aquatic or terrestrial

Question 3

Are protists multi-cellular or uni-cellular

Answer 3

protists can be both

Question 4

Where do protists live?

Answer 4

In wet or damp enviroments

Question 5

What is the protist disease that is the greatest concern to humans?

Answer 5

Malaria

-Carried in mosquitos
-Caused by several species of Plasmodium

Question 6

what is Plasmodium?

Answer 6

Plasmodium can cause malaria. Malaria This disease is caused by several species of Plasmodium, (which is a single-celled protist)

Question 7

what is Giardia lamblia

Answer 7

This is a common intestinal parasite that can give you Giardiasis or “beaver fever”

Question 8

what is Trichomonas vaginalis

Answer 8

a type of std, different from another kind of STD because it is a parasite (protozoan parasite) while other STDs are bacterial

Question 9

what is prophyra?

Answer 9

it is a type of protist that is not harmful to us.
- they are in nori the seaweed that wraps sushi rolls, which is the common name for several species of Porphyra
- prophyra is also used in toothpastes, cosmetics, paints, and the food additives agar and carrageenan

Question 10

Why are Protists Important?

Answer 10

• Protists play a key role in aquatic ecosystems
• They may perform photosynthesis, (acting as the producers)
• they support the macroscopic food pyramids (If they are consumers)
• They also play a role in terrestrial (For example: they are abundant in soil, although their ecological roles are not understood)

Question 11

what was the first eukaryotes?

Answer 11

kingdom Protists

Question 12

how was the nucleus developed?

Answer 12

the nucleus was likely developed from the internal folding of the cell membrane

Question 13

how were mitochondria and chloroplasts likely developed?

Answer 13

Organelles like the mitochondria and chloroplasts likely developed from endosymbiosis of prokaryotic cells

Question 14

what is endosymbiosis?

Answer 14

Endosymbiosis is when one type of cell is taken in and lives within another cell

Question 15

is there a typical protist?

Answer 15

Because of the diversity in the evolutionary pathway for any protist, there is no “typical” protist

Question 16

Protist Characteristics

Answer 16

• they have different energy sources,
• key cellular features,
• modes of reproduction,
• and interactions with their environment

Question 17

What characteristics differentiate Kingdom Proista from being put in other kingdoms?

Answer 17

-Cell walls are made up of cellulose and not chitin like Fungi
-Had given rise to members of kingdom Plantee, and have different reproduction methods from it
-Animal-like protists are believed to have given rise to all larger organizations in the kingdom Animalia

Question 18

Whose ancestors gave rise to fungi, plants, and animals?

Answer 18

protists

Question 19

What are 3 ways of locomotion for protists?

Answer 19

1. Cilates (Hair like)
2. Flagellates (whip/tail-like)
3. pseudopodia (fake foot made from cytoplasm)

Question 20

what is pseudopodia?

Answer 20

a type of locomotion, able to extend some of the cytoplasm to make a foot or two

Question 21

How is Kingdom Protista used as a matter of convenience?

Answer 21

ANY species that do not fit into the other kingdoms are put into the kingdom Protista
-It is sort of like a “catch-all”

Question 22

What organisms does Kingdom Protista include?

Answer 22

Every eukaryotic organism that isn’t…
-Plant
-Fungi
-Animal

KEEP IN MIND ORGANISMS IN KINGDOM PROTISTA CAN BE MULTICELLULAR OR UNICELLULAR