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Botany lab

Lab 4:Kingdom Plantae-Bryophytes

QuestionAnswer
In bryophytes is the gametophyte of sporophyte generation dominant? gametophyte
Is Machantia a leafy or thallose liverwort? thallose
Describe 2 ways Marchantia can reproduce asexually. when older parts of the plant die and newer branches develop into separate plants.via gemmae that are dispersed when raindrops splash the cups and then gemmae develop into new plants.
is the plant with gemmae cups the gametophyte or the sporophyte generation? gametophyte
where are the gemmae cups and gemmae located? gemmae cup are located on the gametophyte plant and the gemmae are inside the gemmae cup.
in male Marchantia plants stalked_______ produce the antheridia which produce______? Antheridiophore,sperm
are the antheridia on the upper or lower head surface? upper
in female Marchantia plants stalked_______ produce the archegonia which produce______? Archegoniophore,eggs
are archegonia on the upper or lower head surface? lower
physically where is the sporophyte located on the gametophyte under the archegonial head.
what part of the gametophyte plant does the calyptra come from? archegonia.
what is the puropose of elators and how do they work? they respond to humidity.as they dry out they twist and fluff the spores up.
are spores haploid or diplod? haploid
what are the only stuctures in Marchantia produced my meiosis? spores
Name 2 other genra of liverworts Clasmatocolea.Riccia
In what structure of the Anthocerose sporophyte are spores produced? adult gametophyte
Is a calptra derived from gametophyte or sporophyte? gametophyte
are sperm and eggs produced my mitosis or meiosis? mitosis
in bryophytes how do the sperm reach the egg? sperm are released from the mature antheridium and on reaching the vinicity of an archegonium.are chemically attracted into the neck canal where it then fertilizes the egg.
when the spores germinate what will they produce? Protonemata
what is the purpose of the peristome teeth?how do they work? the teeth uncurl slowly when the air is relatively dry and curl up again when it is moist.the movements of the teeth expose spores,which are gradually released.
what tissues/structures in a Polytrichum moss are diploid? the capsule,operculum,stalk/septa
are the spores in Polytrichum moss produced my mitosis or meiosis? meiosis
what two cells united in fertlization sperm and egg
does fertiliztion produce the gametophyte or the sporophyte plant in the life cycle? sporophyte
Describe another way that spores are dispersed from a moss capsule. spore(n)develop into photosynthetic long branched filaments(protonema).Buds then develop along the protonema,when the buds become mature they are the gametophyte which is either male or female.
Created by: ejohnson17
 

 



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