wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Stem and leaves of bryophyta plants are

A
Analogous to stem and leaves of higher plants
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Homologous to stem and leaves of higher plants
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Both analogous and homologus
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
None of the above
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A Analogous to stem and leaves of higher plants
Mosses generally have a well-defined shoot in the gametophyte generation. In early development, the plant may take a flattened form, suspiciously similar to the thallus of an alga or liverwort. More typically, the spore develops a long thread-like, recumbent growth, the protonema, which in turn buds off lateral caulonema which develop into stem-like gametophore structures on which the gametes will develop in a terminal gametangium. This structure typically has a well-developed pattern of leaves. It is referred to as a "stem" or "shoot" although it has no xylem or phloem and is therefore not really similar to an axis of a vascular plant. Rather than the xylem or phloem of tracheophytes, mosses have tissues made up of hydroid and leptoid cells. These are frequently referred to as "vascular tissues," and they do probably serve analogous functions.
Hence the correct option is A.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Stems and Roots
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon