UCF BIO 2 Exam 3 with 100%
correct answers ( graded A+)
Bryophyte: - answer -closest relative on terrestrial plants (old)
-nonvascular plant (lack xylem and phloem)
-haploid gametophyte dominant lifecycle (1n)
-water dependent for reproduction (sperm can swim to egg)
-has thallus and rhizoids (must remain very small)
-no tracheids (vascular tissue that transports water)
-Ex. liverworts, moss, hornwarts
seedless vascular plants: - answer -vascular: has xylem
(transports water) and phloem (transport sugar)
-sporophyte dominant life cycle (2n)
-lignin in cell wall
-heterosporous
-water dependent for reproduction
-no seeds, fruits, or flowers
-Ex. ferns, horsetails
Gymnosperm: - answer -vascular, has xylem and phloem
-naked seeds
-pollinated by wind (not by animals)
-pollen cones
-tracheids
, - 2 sperms; one creates pollen tube and one fertilizes egg
-Ex. Conifers, Cycads, Gingkophytes, Gnetophytes
Angiosperm: - answer -closed seed
-pollinated by wind insects and animals
-vascular, seed plant
-produce flowers and fruit
-Double fertilization, 1 sperm fuzes with egg; the other fuses with
polar nuclei (creates endosperm)
Monoecious: - answer Perfect flowers that have carpels and
stamens
Dioecious: - answer Imperfect flowers that have only carpels OR
stamens
Meristem: - answer a region of dividing cells in a plant
Dermal tissue: - answer outer layer that covers the plant
Ground tissue: - answer Site of photosynthesis, support, storage
Heterosporous alternation of generations: - answer Male:
Microspores => mitosis (n, haploid)
Microgametophyte (antheridium) => sperm (n, haploid)
correct answers ( graded A+)
Bryophyte: - answer -closest relative on terrestrial plants (old)
-nonvascular plant (lack xylem and phloem)
-haploid gametophyte dominant lifecycle (1n)
-water dependent for reproduction (sperm can swim to egg)
-has thallus and rhizoids (must remain very small)
-no tracheids (vascular tissue that transports water)
-Ex. liverworts, moss, hornwarts
seedless vascular plants: - answer -vascular: has xylem
(transports water) and phloem (transport sugar)
-sporophyte dominant life cycle (2n)
-lignin in cell wall
-heterosporous
-water dependent for reproduction
-no seeds, fruits, or flowers
-Ex. ferns, horsetails
Gymnosperm: - answer -vascular, has xylem and phloem
-naked seeds
-pollinated by wind (not by animals)
-pollen cones
-tracheids
, - 2 sperms; one creates pollen tube and one fertilizes egg
-Ex. Conifers, Cycads, Gingkophytes, Gnetophytes
Angiosperm: - answer -closed seed
-pollinated by wind insects and animals
-vascular, seed plant
-produce flowers and fruit
-Double fertilization, 1 sperm fuzes with egg; the other fuses with
polar nuclei (creates endosperm)
Monoecious: - answer Perfect flowers that have carpels and
stamens
Dioecious: - answer Imperfect flowers that have only carpels OR
stamens
Meristem: - answer a region of dividing cells in a plant
Dermal tissue: - answer outer layer that covers the plant
Ground tissue: - answer Site of photosynthesis, support, storage
Heterosporous alternation of generations: - answer Male:
Microspores => mitosis (n, haploid)
Microgametophyte (antheridium) => sperm (n, haploid)
