General Life Cycles
Specific Life Cycles
Evolution and Phylogeny
Mixed Bag
Tour of the Phyla
100
The haploid generation of a diplohaplontic life cycle
Gametophyte
100
The ploidy of the carpospores in the Polysiphonia(Rhodophyta) life cycle?
Diploid
100
In which group did chlorophyll a first evolve?
Cyanobacteria
100
An organism is unicellular, with membrane bound organelles, and DNA stored in the nucleus. What domain could it be in?
Eukarya
100
Which phylum has pit connections?
Rhodophyta
200
At what stage of mitosis do the sister chromatids break at the centromere, and are pulled away from one another to opposite poles of the cell by spindle fibers?
Anaphase
200
What is the structure in Marchantiophyta(liverworts) which is for asexual reproduction?
Gemmae cup
200
The engulfing of a cyanobacteria by a heterotrophic eukaryote led to the formation of the ________.
Chloroplast
200
The female gametangia in the moss life cycle is called...
Archegonium
200
What are the 2 mains shapes of diatoms?
Pennate and centric
300
What is the ploidy of a meiospore in a diplohaplontic life cycle?
Haploid
300
Spirogyra undergoes fertilization via the formation of ____________.
Conjugation tubes
300
The group that is sister to Archaeplastida is ______.
Heterokonts
300
The following organism has a tinsel and whiplash flagella, gained its chloroplast from secondary symbiosis, and has a hard cell wall with silica. What phylum is this organism in? What is its common name?
Bacillariophyta, diatom
300
What is the ploidy of the calyptra on a moss sporophyte?
Haploid (gametophyte tissue!)
400
What is the name of the cell that results from fertilization?
Zygote
400
Name the ploidy of each of the following structures:
Carposporophyte
Zygospore
Ploidy before meiosis
Gametophyte
Carposporophyte: 2n
Zygospore: n
Ploidy before meiosis: 2n
Gametophyte: n
400
What phylum is C?
Oomycota
400
An ancestral trait is considered a...
Symplesiomorphy
400
Define coenocytic
aseptate hyphae (multiple nuclei in the same cytoplasm)
500
What is the definition of a diplontic life cycle? Haplontic?
Diplontic: Multicellular diploid stage, unicellular haploid stage
Haplontic: Multicellular haploid stage, unicellular diploid stage
500
What structure is labeled A?
Receptacle
500
The "bryophytes" are a _____ (monophyletic/paraphyletic) group
Paraphyletic
500
The presence of the embryo, in which the egg is retained on the gametophyte, is characteristic of what group?
Embryophytes/land plants
500
What is the difference between "streptophyte algae" and Streptophyta?
"Streptophyte algae"= paraphyletic group of green algae which include charophyta
Streptophyta= monophyletic group which includes streptophyte algae and land plants