Protists 2

Question 1

What are the supergroups, clades, and examples covered in this lab? Also the supergroups common characteristic.

Answer 1

Unikonta -amoebozoans (lobe or tubed shaped pseudopodia) - Tubulinids Archaeplastida - red algae - Rhodophytes -green algae (chlorophyll A, photosynthetic, starch storage) - Chlorophytes - Chraophytes

Question 2

What is primary endosymbiosis?

Answer 2

eukaryote engulfs living prokaryote and utilizes it for cellular processes.

Question 3

What are some common characteristics of rhodophyta? What clade and supergroup are they in?

Answer 3

phycoerythrin pigment, no flagella at any stage, mostly multicellular. agar and carrageenan come from this

Red algae and archaeplastid

Question 4

What are the common characteristics of green algae? What supergroup?

Answer 4

archaeplastid

Chlorophyll A and B, cellulose cell wall

Question 5

What clade and supergroup are plasmodial slime molds in? What are some common characteristics?

Answer 5

amoebozoans and unikonta

multinucleate mass that is intelligent

Question 6

How do spirogyra reproduce?

Answer 6

form conjugation tube between cells to pass cell contents over to other cell where fertilization occurs and thick wall forms to make zygospore

Question 7

What is special about Chara? describe reproductive cycle.

Answer 7

These are believed to be similar to green algae that gave rise to plants.

Have antheridium (male) and Oogonium (female)

Multicellular haploid gametophyte makes sperm and egg that fertilize to form unicellular diploid zygote that immediately undergoes meiosis to form spores that germinate and undergo mitosis to form multicellular haploid gametophye.