BIOL227 Exam Questions and Answers With Verified Solutions 2025
protosteele solid cylinder of vascular tissue, siphonostele has pith no leaf gaps, siphonosteele with leaf
gaps, eusetele is system of discrete strands of vasculat tissue around the pith - ✔✔types of stele
1- gametophyte produces hapliod gametes bt mitisos , 2- two gamets fertalise nd form diploid zygote, 3
zygote developes into spyrophyte, 4- sprophyte produces spores, 5-spores develope into multicellular
gametophytes - ✔✔plant reproductive cycle 1
the gamete-producing and usually haploid phase, producing the zygote from which the sporophyte
arises. - ✔✔gametophyte
the asexual and usually diploid phase, producing spores from which the gametophyte arises. -
✔✔sporophyte
no pholem or xylem- no vascular tissue, gametophyte is free living and larger then sporophyte,
sporophyte dependant on gametophyte for nutients , no roots, instread have anchor, - ✔✔bryophyte
summary
asexual via fragmentation, sexual- water required as spen have flagella , gametangi- holds gametes,
antheridia holds sperm, archegoinia holds eggs - ✔✔bryophyte reproduction
gametophyte hapliod, sporophyte has seta and capsule, capsule holds all spores, - ✔✔phylum of
bryophyte- bryopsida
true mosses, a branched protomaema , splash cups for sperm, gemmae cups, toothed peristome on
sporophyte capsule, - ✔✔phylum bruophyta has 6 classes, - class bryopsida,
hair cap mosses, hairy calyptra, - ✔✔class polytrycopsida,
water transfer , hydriods conduct water, enlongated not lignified, - ✔✔mosses have specialised cells for
conduct sugars, enlongated, no nucleus - ✔✔leptiods
protosteele solid cylinder of vascular tissue, siphonostele has pith no leaf gaps, siphonosteele with leaf
gaps, eusetele is system of discrete strands of vasculat tissue around the pith - ✔✔types of stele
1- gametophyte produces hapliod gametes bt mitisos , 2- two gamets fertalise nd form diploid zygote, 3
zygote developes into spyrophyte, 4- sprophyte produces spores, 5-spores develope into multicellular
gametophytes - ✔✔plant reproductive cycle 1
the gamete-producing and usually haploid phase, producing the zygote from which the sporophyte
arises. - ✔✔gametophyte
the asexual and usually diploid phase, producing spores from which the gametophyte arises. -
✔✔sporophyte
no pholem or xylem- no vascular tissue, gametophyte is free living and larger then sporophyte,
sporophyte dependant on gametophyte for nutients , no roots, instread have anchor, - ✔✔bryophyte
summary
asexual via fragmentation, sexual- water required as spen have flagella , gametangi- holds gametes,
antheridia holds sperm, archegoinia holds eggs - ✔✔bryophyte reproduction
gametophyte hapliod, sporophyte has seta and capsule, capsule holds all spores, - ✔✔phylum of
bryophyte- bryopsida
true mosses, a branched protomaema , splash cups for sperm, gemmae cups, toothed peristome on
sporophyte capsule, - ✔✔phylum bruophyta has 6 classes, - class bryopsida,
hair cap mosses, hairy calyptra, - ✔✔class polytrycopsida,
water transfer , hydriods conduct water, enlongated not lignified, - ✔✔mosses have specialised cells for
conduct sugars, enlongated, no nucleus - ✔✔leptiods
