Biology lab quiz 1
Terms in this set (24)
Sporophyte; ____;_____; ______; eggs & sperm; _____; ______; ______
meiosis; spores; mitosis; fertilization; zygote; mitosis
seedless nonvascular plants
mosses; liverworts; small
Moss Life Cycle: female gametophyte; _____; _____; egg; fertilization; zygote; _____; _____; sporophyte; _____; ______; mitosis
mitosis; sperm; embryo; mitosis; meiosis; spores
self-nourishment; has green
seedless vascular plants
ferns; club mosses; horsetails
Fern Life Cycle: Sporophyte; _____; spore: _____; _____; mitosis; egg; sperm; _____; zygote; _____; sporophyte & gametophyte
meiosis; mitosis; gametophyte; fertilization; mitosis
Which lives longer?
whichever sporophyte or gametophyte that is larger
vascular seed plants- gymnosperms
cycads; ginkgo; conifers (pines)
the transfer of pollen from the anther of one plant to the stigma of another
the joining of a sperm with the egg in the ovule
Pine Life Cycle: Sporophyte; male cone(____); male sporangium; _____; _____; mitosis; male gametophyte; [ female cone(____); female sporangium; _____ ] (only one develops) ______; mitosis; female gametophyte; sperm nucleus; egg; ____; zygote; _____; _____; mitosis
closed; meiosis; male spores; open; meiosis; female spore; fertilization; mitosis; embryo
vascular seed plants- angiosperms
Angiosperm Life Cycle: sporophyte; flower; anther; male sporangium; ____; male spore; mitosis; _____; ____; sperm nucleus; [ovary; ovules; _____; ____; female spore] _____; double fertilization; ______; mitosis
meiosis; male gametophyte; pollination; female sporangium; meiosis; female gametophyte; zygote
why can only diploid cells undergo meiosis?
they split into two haploid cells
why are bryophytes dependent on water for reproduction?
the sperm goes through a film of water to reach the egg
if a moss gametophyte has a sporophyte attached to it, is the gametophyte male or female? why?
female because the archegonum develops into sporophyte after fertilization
what characteristics would you use to distinguish a fern from a horsetail?
horsetails are found in moist areas. ferns can be woodland plants; aquatic, or in desert forms. ferns have more vascularzation than other seedless vascular plants.
how are club mosses different from true mosses?
club mosses are vascular while true mosses are nonvascular
are ferns as dependent on water as mosses are? why?
yes because the sperm has to swim through water to fertilize the egg to create the sporophyte
why would the seed plants have been more successful in the new climate conditions?
seed plants developed in cool and dry climates; flowers develop in summer
how did gymnosperms achieve independence from the need for water for fertilization?
some sporophytes are nutritionally dependent on autotrophic gametophytes while some gametophytes are dependent on autotrophic sporophytes
what is the advantage of an ovary?
the ovary develops into a fruit, which attracts birds and animals who may swallow the seeds and carry them to a different plant
compare the way seeds are made in gymnosperms with the way seeds are made in angiosperms
gymnosperm: "naked seed" vascular plant that produces seeds that are not protected by fruit but are hidden in a woody cone
angiosperm: vascular plants that produce flowers and fruit with one or more seeds.