topic 3 Flashcards
1
Q
what is Photosynthesis
A
light energy trapped by
chlorophyll to generate ATP
2
Q
what is non-vascular plants
A
mosses
3
Q
example of Vascular plants
A
Ferns
4
Q
main feature of mosses
A
- non-vascular
-Haploid, gametophyte stage dominates the
life cycle
-Diploid, sporophyte stage is small
and short-lived
-mosses have no roots absorb nutrients through entire surface
5
Q
how is sexual reproduction take place in mosses
A
Water required for sperm to swim from
antheridium on male plants to the eggs in
the archegonium on female plants
6
Q
Structure of sporophyte
A
Consists of a thin stem (seta) which elongates & then forms a bulbous sporangium or capsule
(spore forming structure)
Obtains most of its sugar from the photosynthesis of the gametophyte