Most Important plant anatomy mcqs
The study of the tissue and cell structure of plant organs that observed under a high-powered light microscope or electron microscope is known Plant anatomy. In this article we cover the most important MCQ's that are helpful to your exam preparation:
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(a) Root apex
(b) root cap
(c) shoot apex
(d) secondary growth.
Answer :(c)
2. Which meristem helps in increasing girth?
(a) lateral meristem
(b) intercalary meristem
(c) primary meristem
(d) apical meristem.
Answer : (a)
3. Cork is formed from
(a) cork cambium (phellogen)
(b) vascular cambium
(c) phloem
(d) xylem.
Answer : (a)
4. Pith and cortex do not differentiate in
(a) monocot stem
(b) dicot stem
(c) monocot root
(d) dicot root.
Answer : (a)
5. Organisation of stem apex into corpus and tunica is determined mainly by
(a) planes of cell division
(b) regions of meristematic activity
(c) rate of cell growth
(d) rate of shoot tip growth.
Answer : (a)
6. Death of protoplasm is a pre-requisite for a vital function like.
(a) transport of sap
(b) transport of food
(c) absorption of water
(d) gaseous exchange.
Answer : (a)
7. Sieve tubes are suited for translocation of food because they possess
(a) bordered pits
(b) no ends walls
(c) broader lumen and perforated cross walls
(d) no protoplasm.
Answer : (c)
8. Out of diffuse porous and ring porous woods, which is correct
(a) ring porous wood, carries more water for short period
(b) diffuse porous wood carries more water
(c) ring porous wood carries more water when need is higher
(d) diffuse porous wood is less specialised but conducts water rapidly throughout. (1989)
Answer : (c)
9. Cork cambium and vascular cambium are
(a) parts of secondary xylem and phloem
(b) parts of pericycle
(c) lateral meristem
(d) apical meristem.
Answer : (c)
10. Monocot leaves possess
(a) intercalary meristem
(b) lateral meristem
(c) apical meristem
(d) mass meristem.
Answer : (a)
11. Collenchyma occurs in the stem and petioles of
(a) xerophytes
(b) monocots
(c) dicot herbs
(d) hydrophytes.
Answer : (c)
12. Collenchyma occurs is
(a) herbaceous climbers
(b) woody climbers
(c) climbing stems
(d) water plants.
Answer : (c)
13. Pericycle of roots produces
(a) mechanical support
(b) lateral roots
(c) vascular bundles
(d) adventitious buds.
Answer : (b)
14. For union between stock and scion in grafting which one is the first to occur
(a) formation of callus
(b) production of plasmodesmata
(c) differentiation of new vascular tissues
(d) regeneration of cortex and epidermis.
Answer : (a)
15. What is true about a monocot leaf
(a) reticulate venation
(b) absence of bulliform cells from epidermis
(c) mesophyll not differentiated into palisade and spongy tissues
(d) well differentiated mesophyll.
Answer : (c)
16. Vascular cambium produces
(a) primary xylem and primary phloem
(b) secondary xylem and secondary phloem
(c) primary xylem and secondary phloem
(d) secondary dylem and primary phloem.
Answer : (b)
17. Where do the casparian bands occur
(a) epidermis
(b) endodermis
(c) pericycle
(d) phloem.
Answer : (b)
18. Angular collenchyma occurs in
(a) Cucurbita
(b) Helianthus
(c) Althaea
(d) Salvia.
Answer : (a)
19. An organised and differentiated cellular structure having cytoplasm but no nucleus is
(a) vessels
(b) xylem parenchyma
(c) sieve tubes
(d) tracheids.
Answer : (c)
20. Which is correct about transport of conduction of substances?
(a) organic food moves up through phloem
(b) organic food moves up through xylem
(c) inorganic food moves upwardly and downwardly through xylem
(d) organic food moves upwardly and downwardly through phloem.
Answer : (d)
