Lecture 11

Question 1

Metabolic diversification?

Answer 1

Evolution of aerobic resp using oxygen

Question 2

Greater structural diversity of eukaryotic cell?

Answer 2

Collagen production began

Question 3

Collagen?

Answer 3

Connecting tissue that binds cells together

Question 4

Origin of eukaryotic cells?

Answer 4

1. Infold of cell membrane
2. Ancestral host cell took on an endosymbioticaerobic heterotrophic prokaryote (becomes mitochondria)
3. Other engulf photosynthetic prokaryotes (become chloroplast)

Question 5

Evidence for Endosymbiosis?

Answer 5

Binary fission
resemble bacteria
Dna is circular
2 cell membrane layers

Question 6

Protista (paraphyletic)?

Answer 6

Highly diverse group of EUKARYOTES (but not fungi, plants, or animals)

Question 7

Paramecium?

Answer 7

Feed on bacterias and smaller protists (phagocytosis)

Reproduce asexually via conjugation or binary fission

Question 8

Plasmodium?

Answer 8

Agent of malaria

Question 9

Trypanosomabrucei?

Answer 9

Sleeping sickness that affects CNS

Question 10

Giardia lamblia?

Answer 10

Diarrhea. acquired by drinking water contaminated (parasite cysts)

Question 11

Dinoflagellates?

Answer 11

Photosynthetic with 2 flagella. Reinforced cellulose plating

Question 12

Red tide?

Answer 12

Produce toxins

Deplete oxygen level

Question 13

Brown algae?

Answer 13

Multicellular, large photosynthetic.

Waterproofing & fireproofing fabrics

Question 14

Archaeplastids?

Answer 14

Land plants
Red Algae
Green Algae

Question 15

Red algae?

Answer 15

Multicellular, seaweed

Question 16

Green algae?

Answer 16

Live in fresh water

Question 17

What are charophytes closely related to?

Answer 17

Land plants