biol 227 Exam- Plants |Questions with
Complete Solutions
Which of the following statements concerning hornworts is FALSE? - ANS The sporophyte is
covered with a cuticle but lacks stomata
In most bryophytes the ventor protects the... - ANS Antheridia and Archegonia
Meiosis always produces - ANS Haploid cells
A peristome is a capsular structure characteristic of members of the phylum ______, class
______ - ANS Bryophyta; Bryidae
A diploid is different from a haploid: - ANS In having two sets of every gene a haploid has
At maturity, the sporophyte of most bryophytes consists of the... - ANS Foot, seta, and capsule
Microphylls differ from megaphylls in that the microphylls are... - ANS Associated with
protosteles
In the fern, fertilization takes place when__________ - ANS Moisture is present
, In the evolution of land plants, sporophytes became dominant over gametophytes
due primarily to what adaptation? - ANS Vascular tissue
Compared to the Bryophytes the haplo-diplontic life cycle of the seedless vascular plants is
characterised by: - ANS Independent gametophytes and sporophytes
In contrast to a eusporangium, a leptosporangium: - ANS Arises from a single initial cell
Extant Lycophytes and extinct tracheophytes have in common produce or are: - ANS All of the
above
Which of the following cells has a different ploidy level from the rest? - ANS Cells of a
gametophyte
The development of a vascular system in plants allowed: - ANS A, b and c
The siphonostele of ferns: - ANS Has a series of discrete strands around a central pith
A strobilus (plural = strobili) is a terminal cluster of tightly packed sporophylls produced by
members of the: - ANS Some of the above
During the carboniferous period humid swap forests covered vast regions of the earth.
Which of the following statements regarding these forests is FALSE? - ANS They were
dominated by Bryophytes
In plant life cycles, which of the following sequences is correct? - ANS Zygote, sporophyte,
meiosis, spores
Complete Solutions
Which of the following statements concerning hornworts is FALSE? - ANS The sporophyte is
covered with a cuticle but lacks stomata
In most bryophytes the ventor protects the... - ANS Antheridia and Archegonia
Meiosis always produces - ANS Haploid cells
A peristome is a capsular structure characteristic of members of the phylum ______, class
______ - ANS Bryophyta; Bryidae
A diploid is different from a haploid: - ANS In having two sets of every gene a haploid has
At maturity, the sporophyte of most bryophytes consists of the... - ANS Foot, seta, and capsule
Microphylls differ from megaphylls in that the microphylls are... - ANS Associated with
protosteles
In the fern, fertilization takes place when__________ - ANS Moisture is present
, In the evolution of land plants, sporophytes became dominant over gametophytes
due primarily to what adaptation? - ANS Vascular tissue
Compared to the Bryophytes the haplo-diplontic life cycle of the seedless vascular plants is
characterised by: - ANS Independent gametophytes and sporophytes
In contrast to a eusporangium, a leptosporangium: - ANS Arises from a single initial cell
Extant Lycophytes and extinct tracheophytes have in common produce or are: - ANS All of the
above
Which of the following cells has a different ploidy level from the rest? - ANS Cells of a
gametophyte
The development of a vascular system in plants allowed: - ANS A, b and c
The siphonostele of ferns: - ANS Has a series of discrete strands around a central pith
A strobilus (plural = strobili) is a terminal cluster of tightly packed sporophylls produced by
members of the: - ANS Some of the above
During the carboniferous period humid swap forests covered vast regions of the earth.
Which of the following statements regarding these forests is FALSE? - ANS They were
dominated by Bryophytes
In plant life cycles, which of the following sequences is correct? - ANS Zygote, sporophyte,
meiosis, spores
