Topic: Evolution of Leaf
Bold options are right one
1. Leaves
formed in the Devonian period of ….. Million years ago.
(a)
~ 360 – 400 (b) ~ 130 (c) ~ 425 (d) ~250
2. Earliest
land plants appeared ……. million years ago.
(a) ~ 360 – 400 (b) ~ 130 (c)
~ 425 (d)none
3. The
earliest land plant that did not produce leaves….
(a)
Cook
sonia (b)
Rhynia (c) fern (d)
both a & b
4. Early
leaves were little more than flaps of tissue, were reported in plant…
(a)
Lycopodium (b) Selaginella (c) fern (d)
a & b
5.
The
leaf-like structures on non-vascular bryophytes are not true leaves.
(a) True
leaves (b) not true leaves (c)
fronds leaves (d) none
6. The leaves
are produced only by…..plants.
(a)
vascular (b) non vascular (c) bryophyte (d) all
7. A model in
which leaves are derived from planar tissues forming between and fusing
together adjacent branches is called….
(a) Tunica
theory (b) telome theory (c) megaphyll theory (d) webbing origin
8. Leaves with
a single vascular strand are known as…
(a) megaphyll (b)
Microphylls (c) Saporophylls (d) mesophylls
9. The larger
leaves were first observed in plant……
(a) Ferns (b) mosses (c) Rhynia (d) both a & b
10. On
Evolutionarily base distinct types of leaves are……
(a) 4 (b) 3 (c) 2 (d) 1
11.
The tiny
leaves that surround the meristem are called….
(a)
leaf primordial (b) apical shoot (c) apical meristem (d) b & c
12. The small
leaves are Associated with……..
(a) stem (b)apical meristem (c) eustele (d) protosteles
13. The larger
leaves are Associated with………..
(a)
stems (b)apical meristem (c) eustele (d)
protosteles
14. Leafs Began
as small scale like or spine like outgrowths called…….
(a)
enations (b) venation (c) horsetails (d) a & b
15. Enation
theory of leaf origin was purposed by……
(a) Zimmerman (b)
bower (c) wittaker (d) Ernst Hakel
16. Which one
theory was purposed by Zimmermann……..
(a) Enation (b) venation (c)
telome (d) none
17. According
to Zimmermann the development of megaphyll take place by……
(a) Overtopping (b)webbing (c) planation (d)
all
18. Enation
theory is related to the origin of…..
(a)
Microphylls
(b) megaphyll (c) stem (d) all
19. It is observed that high trees rarely have leaves……
(a)
Large (b) small
(c) complex (d) both a
& b
20. Trees that grow in…… regions
have pointed leaves.
(a) Desert (b) aquatic (c)
temperate (d) subtropical
21. In vascular
plant sporophytes, leaves are lateral appendages that share…
(a) Two (b) four (c) six (d) none
22. In
lycophytes, three competing hypotheses propose evolution of the leaf
(‘microphyll’):
(a) 1 (b)2 (c)
3 (d)4
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