Kingdom Protista Flashcards

1
Q

What type of organisms are included in the Kingdom Protista?

A

Single-celled eukaryotes

Includes Chrysophytes, Dinoflagellates, Euglenoids, Slime moulds, and Protozoans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a defining feature of protistan cells?

A

Well defined nucleus and membrane-bound organelles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How do protists reproduce?

A

Asexually and sexually through cell fusion and zygote formation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are Chrysophytes primarily known for?

A

Including diatoms and golden algae (desmids)

Found in freshwater and marine environments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the cell walls of diatoms made of?

A

Silica

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is diatomaceous earth?

A

Accumulation of diatom cell wall deposits over billions of years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What ecological role do diatoms play in oceans?

A

Chief producers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a unique characteristic of dinoflagellates?

A

They have stiff cellulose plates and two flagella

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What phenomenon can red dinoflagellates cause?

A

Red tides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the primary habitat of Euglenoids?

A

Freshwater, particularly stagnant water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What structure do Euglenoids have instead of a cell wall?

A

Pellicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How do Euglenoids adapt when deprived of sunlight?

A

They behave like heterotrophs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What type of nutrition do slime moulds exhibit?

A

Saprophytic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What structure do slime moulds form under suitable conditions?

A

Plasmodium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the survival feature of spores produced by slime moulds?

A

Extremely resistant and can survive for many years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What type of nutrition do all protozoans exhibit?

A

Heterotrophic

17
Q

What are the four major groups of protozoans?

A
  • Amoeboid protozoans
  • Flagellated protozoans
  • Ciliated protozoans
  • Sporozoans
18
Q

How do amoeboid protozoans move and capture prey?

A

By putting out pseudopodia (false feet)

19
Q

What disease is caused by flagellated protozoans?

A

Sleeping sickness

20
Q

What is a distinguishing feature of ciliated protozoans?

A

Presence of thousands of cilia for movement

21
Q

What is the life cycle feature of sporozoans?

A

Infectious spore-like stage

22
Q

Which organism is known as the malarial parasite?

A

Plasmodium