Topic: conducting system in plant
(stele)
Note.. Mcqs on Stele... Bold options ARE correct.
1. The concept of stele
theory was purposed by…
(a) Sachs (b) van
teighan (c) douliot (d) none
2. Stele is a Greek word
which means…..
(a)
Pillar (b)
column (c) support (d) both a & b
3. How many major types of
stele are…..?
(a) 2 (b) 4 (c) 6 (d) 8
4. Steles are classified on
the bases of……
(a) Phloem shape (b) xylem shape (c) leaf gap (d)
both b & c
5. Protosteles are
classified on the base of………
(a) Phloem shape (b) xylem shape (c) leaf
gap (d) both b & c
6. Xylem with solid
cylinder having no pith is known as…..
(a) Protosteles (b)
siphonostele (c) eustele (d) all
7. The protosteles in which
xylem is in the form of parallel plates is called….
(a) Haplostele (b) actinostele (c) plectostele (d)
solenostele
8. Which one has no leaf
gap in stem ….?
(a) siphanostele (b)protostele (c)solenostele (d) a & c
9. The branches of xylem
& phloem to leaf are called….
(a) Leaf traces (b) leaf gaps (c) venation (d) none
10. A siphonostele with one
leaf gap having pith in center is called…
(b) Atactostele (b)
solenostele (c)eustele (d) a & c
11. Siphon steles are
classified on the bases of …….
(a) Phloem shape (b) xylem shape (c) leaf
gap (d) both b & c
12. The star like stele with
solid xylem is known as…..
(a) Protosteles (b) siphonostele (c) eustele (d) actinostele
13. The most primitive type
of stele is…
(a) Protosteles (b) atactostele (c) eustele (d) ectoploic
14. In monocots which type
of stele is present…..
(a) atactostele (b) siphonostele (c) eustele (d) both a & c
15. The stele with one leaf
gap, pith in center & xylem is bounded by phloem only on one side is
called…
(b) Haplostele (b) ectoploic solenostele (c) amphiphloic
solenostele (d) none
16. The stele in which no.
of vascular bundle are scattered regularly in ground tissue is….
(a) Eustele (b)
Siphonostele (c) Protosteles (d) atactostele
17. The stele in which no.
of vascular bundle are randomly scattered in ground tissue is….
(a) Eustele (b) Siphonostele (c)
Protostele (d) atactostele
18. The stele with one leaf
gap, pith in center & xylem is bounded by phloem only on one side is
called…
(a) Haplostele (b) ectoploic
solenostele (c) amphiphloic
stele (d) none
19. Eustele are found in ……
plant stem.
(a) Corn (b) sunflower (c) rose
(d) sugar can
20. Siphonostele types are
common in……stems.
(a) Fern (b) mosses (c) rice (d) none
21. Two or more leaf gaps in
a single cross section are called…
(a) Solenostele (b) Actinostele (c) Dictyostele (d) a & b
22. Atactostele are found in
…… plant stem.
(a) Corn (b) sunflower (c) rose
(d) sugar can
23. In which one both stem
& root are protostelic…
(a) Angiosperms (b)
club mosses (c) gymnosperms (d) none
24. In dicots which type of
stele is present…..
(a) atactostele (b) siphonostele (c) eustele (d) both a
& c
25. The type of stele in
which xylem is in the form of circular mass is called..
(a) actinostele (b) Haplostele (c)
plectostele (d) polystelic
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