Diversity of Life Flashcards
What is antheridium
The male sex organ of algae, mosses, ferns, fungi, and other nonflowering plants
What is Archegonium
The female sex organ in mosses, liverworts, ferns, and most conifers
What is conjugation
the process by which one bacterium transfers genetic material to another through direct contact
What is dikaryotic
Organisms that contain 2 genetically distinct cell nuclei in the same cell
What is diploid
A cell containing 2 complete sets of chromosomes (2n)
What is an embryophyte
any of a subkingdom (embryophyta) of plants which the embryo is retained within maternal tissue
What is gametangium
a specialized organ or cell in which gametes are formed in algae, ferns, and some other plants
What is a gamete
a mature haploid. An organism’s reproductive cells
What is a gametophyte
gamete producing, usually haploid
What is haploid
a cell containing a single set of unpaired chromosomes (n)
What is hypha
long branching structure of a fungus, main node of vegetative growth in most fungi
What is mycelium
a network of fungal threads or hyphae
What are rhizoids
protrusions that emerge from the bottom epidermal cells of bryophytes
What are sorus/sori
brownish/yellow cluster of spore producing structures (sporangia) usually located on lower surface of fern leaves
What is sporangium
a case where asexual spores and produced and stored
What is a spore
a cell that certain fungi, plants, and bacteria produce and is capable of development into a new individual either directly or after fusion with another spore
What is a sporophyte
The diploid multicellular stage in the life cycle of a plant or algae which produces asexual spores
What is a zygote
diploid cell from fusion of 2 haploid gametes
What is zygosporangium
a sporangium in which zygospores are produced
draw the life cycles of animals, plants, and fungi
What are haustoria
modified hyphae tups that penetrate the host tissues to absorb nutrients
What are the four groups of plants
- bryophytes
- seedless vascular plants
- gymnosperms
- angiosperms
describe adaptations that contributed to success of each of the 4 major plant groups
Describe fertilization in C Ferns
