Diversity Labs And Lectures Flashcards
Coccus
Spherical bacteria
Bacillus
Elongated/cylindrical bacteria
Spirillum
Twisted corkscrew shaped bacteria
What does it mean to be gram positive
A bacteria that can take a gram stain and appears purple
What does it mean to be gram negative
A bacterium that does not take a gram stain (typically pink in appearance)
Binary fission
The method in which bacteria reproduce asexually
Conjugation
Lateral genetic recombination between bacteria
Phycocyanin
A blue accessory pigment in photosynthetic organisms
Phycoerythrin
A red accessory pigment in photosynthetic organisms
Sheath
The jelly like capsule Cyanobacteria reproduce by fission in
Trichromes
Long chains of Cyanobacteria
Heterocysts
Larger thick walled cells where nitrogen fixation occurs
Algae
A type of protist also referred to as seaweed
Filamentous algal species
Chains of algal protists attached end to end
Colonial algae
Groups of protist algal cells attached in a no filamentous manner
Stigma
A light absorbing spot at the anterior end of chlamydomonas (unicellular green algae)
Chlamydomonas
Unicellular green alga (protist)
Isogamous
Gametes of two strains of protists having identical shape and appearance
Syngamy
Pairing and fusion of morphologically similar haploid gametes to form a diploid zygote
Zygospore
A zygote surrounded in a resistant surface
Spores
Haploid individuals produced by meiosis
Conjugation
Sexual reproduction in spyrogyra
Fragmentation
Asexual reproduction in spirogyra
Conjugation tube
What is formed when filaments lay side by side and form projections that touch to create a zygote
Spirogyra and cladophora
Filamentous green algae
Sporophyte
The diploid stage of the life cycle that produces spores
Gametophyte
The haploid stage of the lifecycle that produces gametes
Alternation of generations
The phenomenon of alternating haploid and diploid stages of a life cycle
Oogamy
Motile sperm swimming to and fusing with a large nonmotile egg to form a diploid zygote
Daughter colonies
The product of asexual reproduction in volvox; new colonies that initially reside within their parent colony
Volvox
Colonial green alga
Fucoxanthin
Brown pigment in brown alga
Conceptacles
Tips of Fucus branches
Oogania
Multicellular sex organs that produce eggs
Antheridia
Multicellular sex organs that produce sperm
