A=Archegonium
B=Antheridium
C=Zygote
E=Embryo
F=Sporophyte
G=Gametophyte
H=Sporangium
I=Sporogenous Tissue
J=Meiospores
K=Spores
L=Sporangium
M=Meiosis
N=Sperm
O=Egg
Bot 311 Sexual Reproduction of Land Plants Worksheet Name _____________________________________________
1] Complete the following: A Sporophyte is a plant that has the D_________________ number of chromosomes. It produces ____oid Meiospores in S__________________________a. The Meiospores germinate and grow into the G_______________phyte plant which has the ____oid number of chromosomes and produces G____________angia called A_______________a and A_____________a. Ar____________ produce E________s while An____________ produce S_________m. Fertilization results in a ______oid Z____________e which grows into an E______________o. The latter becomes the adult S_________________phyte.
| Place the Letters for the
Best Match in the Boxes: Some are used more than Once. A=Archegonium B=Antheridium C=Zygote E=Embryo F=Sporophyte G=Gametophyte H=Sporangium I=Sporogenous Tissue J=Meiospores K=Spores L=Sporangium M=Meiosis N=Sperm O=Egg |
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In what tissue do Sporangia Originate? E________________s What is the Plane of the first Division? Periclinal or Anticlinal? (Circle) What does the inner cell ultimately produce? S_____________s Are the latter Diploid or Haploid (Circle)? What important Genetic process determines the ploidy of the cells above? M___________s Complete the following: H________________s plants produce one type of S_________e. These produce ___sexual G_______________________s.
| Place the Letters for the
Best Match in the Boxes: Some are used more than Once. A=Spores B=Sporangium Wall Is this Heterosporous or Homosporous? (Circle) |
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The A_________________m is the Female G__________________m for most Divisions of land plants. It consists of a peripheral N_________k. The N_______k cells surround the the N___________k C___________l. which constitutes the Axial Row. The most basal cell is the E______g. The Neck Canal Cells undergo A___________________s and provide an open channel for the S__________m to reach the E__________g.
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Place the Letters for the Best Match
in the Boxes in the Tables Above & Below: Some are used
more than Once.
A= Archegonium B=Antheridia C=Neck D=Neck
Canal E=Egg F=Sperm G=Spermatogenous Cells
H=Antheridial Jacket
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What are the two kinds of Sperm (in terms of their flagella) produced by Land Plants? Bi___________________ & Multi_____________________
The first division of the Zygote is T_____________e and produces an upper (E______________l) and a lower (H________________l) Cell.
Which of these produces the Shoot Apex with Endoscopic Embryos? ___________________ with Exoscopic Embryos? ____________________
| Place the Letters for the Best
Match in the Boxes A=Epibasal B=Hypobasal |
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The Shoot Apical Meristem of an E______________ic Embryo grows "out of" the Archegonium/Gametophyte during its initial phase of growth and continues along this trajectory. This is typical for the H_______________a, B____________________a, P_____________a & S_______________a
The Shoot Apical Meristem of an E____________c Embryo grows into the Archegonium/Gametophyte initially. The apex changes its direction of growth, and ultimately grows out of the G_____________________e. This is typical for the L___________________a, C____________________a & A_____________________a.
The Foot is an Ab________________ive structure produced by Embryos in the _______________phyta, ______________phyta, ______________phyta, ______________phyta.
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Place the Letters for the Best Match in the Boxes A=Foot B=Sporangium C=Stalk or Seta Is this entire structure the Gametophyte or Sporophyte? (Circle) |
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| Place the Letters for the
Best Match in the Boxes A=Archegonium B=Antheridium C=Fertilization D=Sperm E=Egg F=Spores G=Protonema H=Buds I=Meiosis J=Sporangium K=Sporophyte |
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| Place the Letters for the
Best Match in the Boxes A=Archegonium B=Antheridium C=Fertilization D=Sperm E=Egg F=Spores G=Gametophyte H=Meiosis I=Sporangium J=Sporophyte K=Embryo |
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The Lycophyta (Club Moss) contains Ho_________________s and H_______________s Genera. Lycopodium as an example of H________________y and Selaginella as an example of H____________________y.
| Place the Letters for the
Best Match in the Boxes A=Archegonium B=Antheridium C=Fertilization D=Sperm E=Egg F=Spores G=Meiosis H=Sporangium I=Sporophyte J=Gametophyte |
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| Place the Letters for the
Best Match in the Boxes A=Archegonium B=Antheridium C=Fertilization D=Sperm E=Egg F=MegaSpores G=Meiosis H=Cone I=Sporophyte J=MicroGametophyte K=MegaSporangium L=MicroSporangium M=MegaGametophyte |
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Selaginella is Heterosporous. It produces Mi____________________a which have many small Mi____________s.
Selaginella also forms Me________________s in Me____________________a. There are only Four Me_________________s in each Me___________________m. The four Megaspores contain the same biomass as all of the Microspores. This packs a lot of N___________________n into each Me________________e. Consequently, the Z_______________e and E_________________o will have a much greater chance for survival.
| Place the Letters for the
Best Match in the Boxes A=Sperm B=Spore Wall C=Storage Lipids This is a M_____________________________e |
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| Place the Letters for the
Best Match in the Boxes A=Archegonium-Egg B=Spore Wall C=Cells D=Storage Lipids E=Megagametophyte
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| Place the Letters for the
Best Match in the Boxes A=Megagametophyte B=Sporephyte This is Heterosporous or Hmosporous (Circle)
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Why are the Coniferophyta called Coniferophyta? Their Reproductive structures are organized into C_____________s Gymnosperm means N_____________d S__________d. This refers to the fact that the female reproductive structure, the O___________e, is directly exposed to the a________________________e and becomes the S___________d when it is mature.
| Place the Letters for the Best Match
in the Boxes A=Archegonium B=Micropyle C=Integument D=Nucellus E=Egg F=Megagametophyte M=Pollen Tube N=Ovule What does this Entire Structure become when it is completely mature and shed from the plant? _________________ |
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How does the Sperm get to the Egg? It is delivered by the
P_______________n
T______________e
to the A________________ium. Consequently W_____________r is not necessary for
F___________________n.The direct method of S__________m delivery helps to
insure that each O__________e will have at least one F_________________d
E____________g. These plants invest a lot of energy in the Ovule. This will help
to insure that a v_______________e p___________t develops from each ovule.
| Place the Letters for the
Best Match in the Boxes A=Sperm B=Pollen Tube C=Wings This is the mature M________________________e
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| Place the Letters for the
Best Match in the Boxes A=Embryo B=Megagametophyte
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| Place the Letters for the
Best Match in the Boxes A=Archegonium-Egg B=Pollen (Microgametophyte) C=Megaspores D=Seeds E=Embryo F=Fertilization G=Germination H=Seedling I=Micropyle J=Ovule K=Microsporangiate Cones L=Megasporangiate Cones M=Meiosis |
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| Place the Letters for the
Best Match in the Boxes A=Embryo B=Integument/Seed Coat C=Nucellus D=Megagametophyte |
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Anthophyta (Flowering Plants)
Angiosperm means C______________d
S_____________d. This means that the O_____________e is housed within the
O______________y
W ____________l or P___________________carp. This protects it from the
E____________________________. The P_________carp also becomes the
F___________t.
This provides a variety of ways in which seeds are D__________________________ed.
| Place the Letters for the
Best Match in the Boxes A=Androecium B=Gynoecium C=Corolla(Petals) |
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| Place the Letters for the Best
Match in the Boxes A=Androecium (Stamens) B=Gynoecium (Carpels) C=Corolla (Petals) D) Calyx (Sepals)
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| Place the Letters for the
Best Match in the Boxes A] Generative Cell B] Tube Cell What Does A produce? ____________________ What does B produce? ___________________ ____________________ |
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How May the Microgametophyte get to the Stigma?
It may be carried passively by W_________d or it may be actively transported
by I_________________s or B__________s.
| Place the Letters for the
Best Match in the Boxes A=Ovary B=Stigma C=Style D=Ovule The entire structure is called a C________________l At Full Maturity it becomes a F______________t
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| Place the Letters for the
Best Match in the Boxes A=Ovary B=Stigma C=Style D=Receptacle |
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| Place the Letters for the
Best Match in the Boxes A=Ovary Wall (Pericarp) B=Ovules
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| Place the Letters for the
Best Match in the Boxes A=Antipodals B=Synergid C=Central Cell D=Micropyle E=Egg
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Identify the round objects at the end of the arrows S_______________m What Process is illustrated ____________________ ____________________ |
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| Place the Letter from the Image next to the
Term that is the best Match _________ Embryo _________ Endosperm |
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| Place the Letters for the
Best Match in the Boxes A=Hypocotyl B=Shoot Apex C=Cotyledons D=Root Apex E=Endosperm
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Place the Letters for the Best Match in the Boxes A=Anther B=Meiosis (used twice) C=Microspores D=Microgametophyte E=Pollen F=Fertilization G=Ovary H=Ovule I=Megaspores J=Megagametophyte L=Seed |
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