Test 2 Study Guide A

Question 1

Evidence for mitochondria and plastidendosymbiosis

Answer 1

DNA loop
Double membrane bound
ribosomes
divide by fission
inherited cytoplasmically

Question 2

ancestral to eukaryotic mitochondria

Answer 2

proteobacteria

Question 3

ancestral to eukaryotic plastid

Answer 3

cyanobacteria

Question 4

1º endosymbiosis?

Answer 4

engulfment (without breakdown) of a cell by another free living organism

Question 5

2º endosymbiosis?

Answer 5

product of 1º endosymbiosis is engulfed and retained by another free living organism

Question 6

Which supergroup includes photosynthetic eukaryotes whose plastids are surrounded by two membranes?

Answer 6

excavata

Question 7

Members of this supergroup are unicellular and possess apical flagella, deep feeding grove; and some sare photosynthetic by plastids acquired from green algae

Answer 7

euglinids

Question 8

members of giardia posess an organelle derived from mitochondria called

Answer 8

mitozome

Question 9

Trychonymphy contain an organelle derived from mitochondria called

Answer 9

hydrogenozome

Question 10

one synapomorphy that distinguishes euglenozoans from other excavates

Answer 10

2 flagella

Question 11

Euglena acquired chloroplasts by 2º endosymbiosis with a …

Answer 11

unicellular green algae

Question 12

one synapomorphy used to distinguish euglenids from other excavata

Answer 12

pellicle

Question 13

trypanosoma’s base of their flagella that consists of a single large mitochondria called

Answer 13

kinetoplast