protist structure

Question 1

which 3 classes can eukaryotes be divided into

Answer 1

animal parabasalids
plant-protists
diplomonads

Question 2

what are microtubulins involved in?

Answer 2

cell shape
chromosome movement in cell division
cell motility

Question 3

bacterial flagella

Answer 3

spiral motion

energy from proton pump in membrane

Question 4

protist flagella

Answer 4

whipping motion

energy from ATPase dynein

Question 5

microfilaments

Answer 5

cytoskeletal structure
polymers of actin
involved in maintaining or changing cell shape

Question 6

do all eukaryotes have mitochondria?

Answer 6

No

Question 7

mitochondria with irregular cristae

Answer 7

ameobazoa

Question 8

mitochondria with flattened cristae

Answer 8

opisthokonts

Question 9

amitochondriate metonomads

mitochondria discoba

Answer 9

excavates

Question 10

alternative energy generating mechanism to mitochondria

Answer 10

hydrogenosome

Question 11

what is a hydrogenosome?

Answer 11

lack cristae and the TCA cycle
present in aerobic protists
metabolism is fermentation
oxidation of pyruvate

Question 12

important enzyme in protists

Answer 12

PFO- pyruvate ferredoxin peroxidase

Question 13

filter feeders

Answer 13

paramecium

vorticella

Question 14

vegetarian gulpers

Answer 14

chilodonella

pseudomicrothorax

Question 15

predators

Answer 15

actinophrys

homalozoon

Question 16

extrusomes

Answer 16

cell organelles used for predatorily feeding

Question 17

what triggers the ejection of toxicysts?

Answer 17

fusion of the toxicyst membrane with the plasma membrane after which a tubule is discharged via evagination

Question 18

secondary endosymbiosis of green algae

Answer 18

euglenoids, chlorarachniophytes

Question 19

secondary endosymbiosis of red algae

Answer 19

alveolate and stramenopiles