Morphology of Flowering Plant (Multiple Choice Questions and Answers)

Morphology of Flowering Plant

Multiple Choice Questions and Answers

1. The root can be differentiated from the stem because of the absence of

(a) green colour

(b) nodes and internodes

(c) leaves

(d) branches

Answer: (b) nodes and internodes

2. When the stem is modified into green flattened structure and leaves modified into spines, is called as

(a) phyllode

(b) cladode

(c) bulbil

(d) phylloclade

Answer: (d) phylloclade

3. Haustoria are found in

(a) Vanda

(b) Screwpine

(c) Mistletoe

(d) Trapa

Answer: (c) Mistletoe

4. The bud that grows at the apex of a stem or branch is called as

(a) axillary bud

(b) terminal bud

(c) accessory bud

(d) adventitious bud

Answer: (b) terminal bud

5. The part of the root where the cells undergo rapid elongation, enlargement and is responsible for growth in length of the root is known as

(a) meristematic region

(b) region of elongation

(c) region of maturation

(d) root cap region

Answer: (b) region of elongation

6. Which one of the following is not a characteristic of root?

(a) presence of chlorophyll

(b) presence of root cap

(c) presence of unicellular hair

(d) absence of buds

Answer: (a) presence of chlorophyll

7. Roots that grow from any part of the plant body other than the radicle are called

(a) tap root

(b) adventitious roots

(c) modified roots

(d) respiratory roots

Answer: (b) adventitious roots

8. The storage root in carrot is a modified

(a) tap root

(b) adventitious root

(c) stem

(d) leaf

Answer: (a) tap root

9. The prop of stilt root are meant for

(a) storage

(b) sucking

(c) respiration

(d) mechanical support

Answer: (d) mechanical support

10. The stem developes directly from

(a) plumule

(b) radical

(c) integuments

(d) cotyledons

Answer: (a) plumule

11. The place on stem or branch from where one or more leaves arise is known as

(a) node

(b) bud

(c) apex

(d) internode

Answer: (a) node

12. Tendrils of passion flower and wine are modifications of

(a) leaf

(b) branch

(c) root

(d) apex of stem

Answer: (d) apex of stem

13. Root hairs are

(a) unicellular

(b) acellular

(c) multicellular

(d) bicellular

Answer: (a) unicellular

14. When margin of leaf is like the teeth of a saw it is called

(a) entire

(b) serrate

(c) wavy

(d) spiny

Answer: (b) serrate

15. Leaf tendrils are found in

(a) Passiflora

(b) Cucurbita

(c) Lathyrus aphace

(d) Grape vine

Answer: (c) Lathyrus aphace

 16. When the rachis bears a number of leaflets laterally, it is called

(a) simple leaf

(b) pinnate compound leaf

(c) palmate compound leaf

(d) isobilateral leaf

Answer: (b) pinnate compound leaf

17. Phylloclade is a modification of

(a) stem

(b) leaf

(c) fruit

(d) flower

Answer: (a) stem

 18. Gram plants possess

(a) nodulated roots

(b) tap roots

(c) hygroscopic roots

(d) adventitious roots

Answer: (a) nodulated roots

 19. Dahlia possesses

(a) stilt roots

(b) fascicled root tubers

(c) tuberous roots

(d) none of these

Answer: (b) fascicled root tubers

20. Tap root is direct prolongation of the

(a) plumule

(b) radical

(c) endosperm

(d) funiculus

Answer: (a) plumule

 21. The pillars like brownish structures which hangs vertically downwards from the aerial branches are called

(a) prop roots

(b) epiphytic roots

(c) pneumatophores

(d) stilt roots

Answer: (a) prop roots

 22. Unbranched, erect, cylindrical stout stem with distinct nodes and internodes having a jointed appearance is called

(a) Excurrent

(b) Runner

(c) Caudex

(d) Culm

Answer: (d) Culm

23. Thread-like sensitive, spirally coiled structures which help the plant in climbing are called

(a) thorns

(b) tendrils

(c) prickles

(d) none of these

Answer: (b) tendrils

 24. Which of the following underground, fleshy structure is a stems?

(a) potato

(b) sweet potato

(c) turnip

(d) carrot

Answer: (a) potato

 25. Plants which complete their life cycle in single season are called

(a) annuals

(b) biennials

(c) perennials

(d) none of these

Answer: (a) annuals

 26. Phyllode is a modification of

(a) petiole

(b) root

(c) flower

(d) none of these

Answer: (a) petiole

 27. Stipular tendrils are found in

(a) Cucurbita

(b) Smilax

(c) Clematis

(d) Passiflora

Answer: (b) Smilax

 28. Parallel venation is a characteristic of

(a) Shoe flower

(b) Peepal

(c) Grasses

(d) Legumes

Answer: (c) Grasses

29. Leaves catch insects in

(a) Mulberry

(b) Calotropis

(c) Nepenthes and Dionea

(d) Sunflower

Answer: (c) Nepenthes and Dionea

 30. When the apex of leaf is round, it is called as

(a) obtuse

(b) cuspidate

(c) acuminate

(d) retuse

Answer: (a) obtuse

31. When a lateral bud arises in the axil of a leaf, it is known as

(a) accessory buds

(b) axillary buds

(c) sub-petiolar buds

(d) cauline buds

Answer: (b) axillary buds

32.  Superficial, stiff and pointed outgrowth on stem surface are called

(a) prickles

(b) spines

(c) hooks

(d) thorns

Answer: (a) prickles

33. Plants that live for many years are called

(a) perennial

(b) biennial

(c) annual

(d) none

Answer: (a) perennial

34. A sucker is a modified underground

(a) root

(b) stem

(c) only a

(d) none

Answer: (b) stem

35. When leaflets are articulated at the tip of the petiole, the leaf is said to be

(a) palmately compound leaf

(b) pinnately compound leaf

(c) simple leaf

(d) none

Answer: (a) palmately compound leaf

36. The arrangement of leaves on the stem or branch is called

(a) Inflorescence

(b) Phyllotaxy

(c) Venation

(d) None

Answer: (b) Phyllotaxy

37. In Nepenthes which part of the plant assumes pitcher shape?

(a) root

(b) stem

(c) leaves

(d) flower

Answer: (c) leaves

38. The flattened and leaf like petiole is called

(a) cladode

(b) phylloclade

(c) phyllode

(d) all of these

Answer: (c) phyllode

39. Hard, woody and pointed structures present in the axil of a leaf is called

(a) Thorns

(b) Spine

(c) Needle

(d) Prickles

Answer: (a) Thorns

40. In onion, the food is stored in

(a) scale leaves

(b) roots

(c) bulb

(d) none

Answer: (a) scale leaves

41. The arrangement of veins and veinlets in the lamina is known as

(a) Inflorescence

(b) Phyllotaxy

(c) Venation

(d) None

Answer: (c) Venation

42. The creeping stem with long internodes is called

(a) stolon

(b) offset

(c) runner

(d) sucker

Answer: (a) stolon

43. Leaf with a single, entire or incompletely divided lamina is called

(a) palmately compound leaf

(b) pinnately compound leaf

(c) simple leaf

(d) compound leaf

Answer: (c) simple leaf

44. The type of venation in banana is

(a) parallel

(b) reticulate

(c) unicostate reticulate

(d) none

Answer: (a) parallel

45. Plants that live for one year

(a) perennial

(b) biennial

(c) annual

(d) none

Answer: (c) annual

46. Plants which grow in water scarcity and dry region

(a) xerophytes

(b) mesophytes

(c) epiphytes

(d) none

Answer: (a) xerophytes

47. Roots which arise from the first few nodes of the stem

(a) stilt roots

(b) prop roots

(c) climbing rooks

(d) none

Answer: (a) stilt roots

48. Mention the primary functions of a root

(a) anchorage

(b) absorption

(c) storage

(d) all of these

Answer: (d) all of these

49. Leaves of axillary buds are modified into spines in

(a) Opuntia

(b) Zizyphus

(c) Aloe

(d) Argemone

Answer: (a) Opuntia

50. Potato is a modification of underground

(a) stem

(b) root

(c) leaf

(d) none

Answer: (a) stem