Ochrophyta

Question 1

difference between Ochro- and Rhodophyta?

Answer 1

• presence of Chlorophyll a and ANOTHER kind: Chl. c
• no phycoerythrin
• beta-1,3 linked glucans

Question 2

two different storage products

Answer 2

• laminaran
• chrysolaminaran
  (different to Rhodophyta: floridean starch)
• located in vesicles in cytoplasma

Question 3

flagellate cells?
where?

Answer 3

• yes
• heterokont flagellate = two flagella, both inserted at anterior pole of cell (subapical)
• one: smooth and anematic
• second: pleuronematic

Question 4

Answer 4

heterokont flagellate cell with two flagella

Question 5

Answer 5

axones with two sides of mastigonemes in heterkont flagellate cells of Ochrophyta

here: pleuronematic (2 rows of mastigonemes)

Question 6

Answer 6

cell wall types in Ochrphyta

Question 7

Answer 7

• ## supports endosymbiosis theory

Question 8

Answer 8

girdle lamella =
- peripheral thylakoid membrane that is:
(1) running parallel to chloroplast membrane
(2) surrounding thylakoids

picture:
left: 4 chloroplasts, nucleus located near chloropl., unten: continuity with outer membrane of chloropl. and nucle., also thylakoid membrane to form 3 lamella (right picture)