Unusual Red Algae Features
Red Algae Life History
Red Algae Reproduction
Name that Genus
More Red Algae Fun
100
These proteinaceous plugs close direct connections between cells in the red algae (be specific).
What are primary pit plugs.
100
With an additional phase involved, this is not your typical sporic meiosis.
What is tri-phasic sporic meiosis.
100
These germinate into the tetrasporophyte.
What are carpospores.
100
This genus can be found in the Nemaliales. (Name a genus)
What is Liagora, Galaxaura, or Tricleocarpa
100
In this mode of reproduction, the auxiliary cell is found next to the supporting cell and only involves a single fertilization.
What is procarpic reproduction.
200
This is the only gamete type evident in the red algae.
What is oogamy.
200
There are three types of tetraspores found in the red algae.
What are zonate, cruciate, and tetrahedral.
200
This tube extends beyond the surface of most red algae filaments to act as the receptive surface for the male gamete.
What is the trichogyne.
200
The recurved tips of this genus makes it highly distinguishable in the field.
What is Portieria.
200
This type of red algal organization involves growth through a single apical cell.
What is uniaxial growth or organization.
300
Name two unusual features of red algae sperm.
What are no pigments or flagella.
300
In the species Asparagopsis taxiformis neither free living phase resembles one another.
What is heteromorphic alternation of generations.
300
In some red algae, this type of reproduction involves fertilizing many auxiliary cells during a single fertilization event.
What is non-procarpic reproduction.
300
On Sunday, March 26th, the goal is to remove as much of this red algae as possible. (Only the genus needed).
What is Gracilaria.
300
In the Ceramiales, periaxial and / or pericentral cells may surround axial cells.
What is cortication.
400
Although the red algae may appear to be made of true tissue, this is indeed not the case.
What is pseudoparenchyma.
400
In many species of red algae, two life phases resemble one another.
What is isomorphic alternation of generations.
400
In red algae the egg is also referred to by another name.
What is the carpogonium.
400
This genus is found in the Bonnemisoniales.
What is Asparagopsis.
400
Of the genera listed, one is not of the same order as the other two: Acanthophora, Hypnea, and Eucheuma.
What is Acanthophora.
500
This nitrogen loaded light harvesting complex is also present in the Cyanophyta.
What is the phycobilisome.
500
For some, remembering the ploidy of the tetraspores can be difficult.
What is haploid.
500
This describes the structure of the carposporophyte tissue developing from a fertilized egg or auxiliary cell. The tissue is often composed of sterile and fertile cells.
What is the gonimoblast.
500
This articulated coralline genus usually ends in dichotomies and includes many species.
What is Jania.
500
This female reproductive branch type may be laterally or terminally positioned on an assimilatory branch.
What is the carpogonial branch.