BIOL227 - Plants Exam Questions and Answers With Verified Solutions 2025
The evolution of fronds may have occurred in what steps? - ✔✔Branch forks evenly to branch forks
unevenly to leaves with many veins
The enations (=leaves) of leafy liverworts differ from those of mosses in that liverwort leaves are... -
✔✔Arranged in two rows with a third row of smaller leaves
Which of the following lists the taxonomic categories in the correct hierarchy, from most to least
inclusive, under kingdom? - ✔✔Phylum, class, order, family, genus, species
The names of nearly all plant families end in... - ✔✔aceae
Biological features that have a common origin, even if they have a different function, are said to be: -
✔✔Homologous
In all bryophytes the sporophyte is...
a) Is retained by the female gametophyte
b) Is the non-dominant stage of the life cycle
c) Is unbranched
d) All of the above
e) Some of the above - ✔✔e) Some of the above
The function of elaters is to... - ✔✔Help disperse spores
Which of the following is NOT a characteristic shared by bryophytes and vascular plants? - ✔✔Retention
of the embryo within an antheridium
Bryophytes share all of the following features with charophytes except: - ✔✔The presence of
archegonia
, In bryophytes, rhizoids usually: - ✔✔Attach to the substrate
Which of the following is NOT a group of mosses of phylum Bryophyta? - ✔✔Club mosses
Euphorbia resinifera (resin spurge, family Euphorbiaceae) from North Africa and Pachycereus pringlei
(Elephant cactus family Cactaceae) from North and central Americas both have CAM photosynthesis,
this is an example of: - ✔✔Convergent evolution
Which of the following statements concerning hornworts is FALSE? - ✔✔The sporophyte is covered with
a cuticle but lacks stomata
In most bryophytes the ventor protects the... - ✔✔Antheridia and Archegonia
Meiosis always produces - ✔✔Haploid cells
A peristome is a capsular structure characteristic of members of the phylum ______, class ______ -
✔✔Bryophyta; Bryidae
A diploid is different from a haploid: - ✔✔In having two sets of every gene a haploid has
At maturity, the sporophyte of most bryophytes consists of the... - ✔✔Foot, seta, and capsule
Microphylls differ from megaphylls in that the microphylls are... - ✔✔Associated with protosteles
In the fern, fertilization takes place when__________ - ✔✔Moisture is present
In the evolution of land plants, sporophytes became dominant over gametophytes due primarily to what
adaptation? - ✔✔Vascular tissue
Compared to the Bryophytes the haplo-diplontic life cycle of the seedless vascular plants is
characterised by: - ✔✔Independent gametophytes and sporophytes
The evolution of fronds may have occurred in what steps? - ✔✔Branch forks evenly to branch forks
unevenly to leaves with many veins
The enations (=leaves) of leafy liverworts differ from those of mosses in that liverwort leaves are... -
✔✔Arranged in two rows with a third row of smaller leaves
Which of the following lists the taxonomic categories in the correct hierarchy, from most to least
inclusive, under kingdom? - ✔✔Phylum, class, order, family, genus, species
The names of nearly all plant families end in... - ✔✔aceae
Biological features that have a common origin, even if they have a different function, are said to be: -
✔✔Homologous
In all bryophytes the sporophyte is...
a) Is retained by the female gametophyte
b) Is the non-dominant stage of the life cycle
c) Is unbranched
d) All of the above
e) Some of the above - ✔✔e) Some of the above
The function of elaters is to... - ✔✔Help disperse spores
Which of the following is NOT a characteristic shared by bryophytes and vascular plants? - ✔✔Retention
of the embryo within an antheridium
Bryophytes share all of the following features with charophytes except: - ✔✔The presence of
archegonia
, In bryophytes, rhizoids usually: - ✔✔Attach to the substrate
Which of the following is NOT a group of mosses of phylum Bryophyta? - ✔✔Club mosses
Euphorbia resinifera (resin spurge, family Euphorbiaceae) from North Africa and Pachycereus pringlei
(Elephant cactus family Cactaceae) from North and central Americas both have CAM photosynthesis,
this is an example of: - ✔✔Convergent evolution
Which of the following statements concerning hornworts is FALSE? - ✔✔The sporophyte is covered with
a cuticle but lacks stomata
In most bryophytes the ventor protects the... - ✔✔Antheridia and Archegonia
Meiosis always produces - ✔✔Haploid cells
A peristome is a capsular structure characteristic of members of the phylum ______, class ______ -
✔✔Bryophyta; Bryidae
A diploid is different from a haploid: - ✔✔In having two sets of every gene a haploid has
At maturity, the sporophyte of most bryophytes consists of the... - ✔✔Foot, seta, and capsule
Microphylls differ from megaphylls in that the microphylls are... - ✔✔Associated with protosteles
In the fern, fertilization takes place when__________ - ✔✔Moisture is present
In the evolution of land plants, sporophytes became dominant over gametophytes due primarily to what
adaptation? - ✔✔Vascular tissue
Compared to the Bryophytes the haplo-diplontic life cycle of the seedless vascular plants is
characterised by: - ✔✔Independent gametophytes and sporophytes
