Protists

Question 1

metabolism of protists

Answer 1

phagosome>fuse with lysosomes containing hydrolytic enzymes>produce phagolysosome>food particle broken down>exocytosis

Question 2

absorbs nutrients from dead organisms or their organic wastes

Answer 2

saprobes

Question 3

getting nutrition by photoautotrophic or heterotrophic routes

Answer 3

mixotrophs

Question 4

they have _____ and _______ for motility

Answer 4

flagella and cilia

Question 5

anchors ______ and pulls themselves towards a substrate

Answer 5

pseudopodia

Question 6

can move away or toward a stimulus

Answer 6

taxis

Question 7

mode of asexual reproduction

Answer 7

binary fission

Question 8

multicellular stages in both haploid and diploid forms

Answer 8

alternation of generations

Question 9

habitats of protists

Answer 9

freshwater and marine environments, damp soil, snow

parasites to animals and plants

dead organisms or their wastes

Question 10

6 supergroups of protists

Answer 10

1. Archaeplastida
2. Amoebozoa
3. Opisthokonta
4. Rhizaria
5. Chromalveolata
6. Excavata

Question 11

-includes red and green algae
-life cycle: alternation of generations
-descendants of endosymbiotic relationship

Answer 11

Archaeplastida

Question 12

-small group of Archaeplastida whose chloroplasts retain remnants of the peptidoglycan cell wall of the ancestral cyanobacterial endosymbiont

Answer 12

Glaucophytes

Question 13

the color of red algae comes from

Answer 13

phycoerythrins

Question 14

Red Algae

Answer 14

Rhodophytes

Question 15

Green Algae

Answer 15

Chlorophytes (Chlamydomonas) and Charophytes (Spirogyra)

Question 16

similar to Amoeba proteus but without mitochondria

Answer 16

Gymnamoeba

Question 17

similar to fungi but the life cycle are categorized into plasmodial or cellular types

Answer 17

Slime molds

Question 18

has a single posterior flagellum that pushes the cells towards a specific direction

Answer 18

Opisthokonta

Question 19

has a single apical flagellum surrounded by a contractile collar used to filter and collect bacteria

resembles the common ancestors of sponges and all animals

Answer 19

Choanoflagellates

Question 20

-amoebas with thin threadlike, needle-like pseudopodia
-have important roles in carbon and nitrogen cycles (denitrification)

Answer 20

Rhizaria

Question 21

-unicellular heterotrophic protists, resembling tiny snails
-has porous shells (tests)
-useful as indicators of pollution and changes in global weather patterns

Answer 21

Foraminiferans

Question 22

porous shell built from various organic materials and hardened with calcium carbonate

may house photosynthetic algae, which forams can harvest for nutrition

Answer 22

tests

Question 23

-includes diatoms, brown algae, and significant disease agents
-from a common ancestor that engulfed a photosynthetic red algal cell, that already evolved chloroplast
-alveolates and stramenopiles

Answer 23

Chromalveolata

Question 24

nuclear variant of dinoglagellates

Answer 24

dinokaryon

Question 25

generate light when stresses

Answer 25

bioluminescence

Question 26

-derived from red alga -has textured and hairy flagellum -has another hairless flagellum -has glassy diatoms

Answer 26

stramenopiles

Question 27

-heterotrophic predators, photosynthetic species, and parasites -has a variety of modified mitochondria and chloroplasts derived from green algae by secondary endosymbiosis

Answer 27

Excavata

Question 28

-intestinal parasite, Giardia lamblia -lacks mitochondria -anaerobic environment and uses glycolysis -has two similar but not identical haploid nuclei -has four pairs of flagella

Answer 28

Diplomonads

Question 29

mitochondrial remnant organelles of diplomonads

Answer 29

mitosomes

Question 30

-has two long flagella to move through aquatic habitat to move towards light source -mixotrophic

Answer 30

Euglenozoans

Question 31

-a parasitic Euglenozoa (belongs to a different subgroup)

Answer 31

Trypanosoma brucei

Question 32

primitive ocular organ of euglenozoans

Answer 32

eyespot

Question 33

photosynthetic dinoflagellates that provide nutrients for the coral polyps that house them

Answer 33

zooxanthellae