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Medical Exam-Biology Morphology and Anatomy of Flowering Plants Practice Q & A
1. The distinguishing character of imparipinnate leaf is that
a. Leaflets are large
b. Rachis is terminated by an unpaired odd leaflet
c. Rachis is strong
d. All leaflets are borne in pairs
2. The ovary is half inferior in flowers of
a. Guava
b. Peach
c. Cucumber
d. Cotton
3. Which one of the following statements is correct?
a. Flower of tulip is a modified shoot
b. In tomato, fruit is a capsule
c. Seeds of orchids have oil-rich endosperms
d. Placentation in primose is basal
4. The adventitious root which arises from the stem, penetrates into the soil, and helps support the stem is
called
a. Prop root
b. Stilt root
c. Climbing root
d. Clinging root
5. The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in:
a. Cucumber
b. Pomegranate
c. Orange
d. Guava
6. The most reduced stem is found in:
a. Bulb
b. Corm
c. Rhizome
d. Stem tuber
7. The part of root which grows in length
a. Root cap
b. Zone of elongation
c. Meristematic zone
d. Zone of maturation
8. Identify a pair of the following plants which show modification of axillary buds into tendrils and hooks
respectively:
I. Hugonia
II. Duranta
III. Passiflora
IV. Dioscorea
The correct pair is:
a. I, II
b. II, III
c. III, I
d. IV, I
9. The rhizome differs from stem due to
a. Thickness
b. Thinness
c. Buds in the axils of scale leaves
d. Their green color
10. The root in Mangrove tree is
a. Respiratory
b. Tuberous
c. Buttress
d. Fibrous
11. The roots become fleshy due to storage of food in
a. Tecoma
b. Groundnut
c. Pothos
d. Dahlia
12. The tap root is the direct prolongation of
a. Pericarp
b. Radicle
c. Plumule
d. Cotyledons
13. Which of the following is a total root parasite?
a. Dendrophthoe
b. Orobanche
c. Viscum
d. Santalum
14. Assertion (A): The type of inflorescence in Sphaeranthus is cyathium.
Reason (R): In cyathium type of inflorescence, the flowers are achlamydeous.
The correct answer is
a. Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
b. Both Assertion and Reason are true but Reason is not the correct explanations of Assertion.
c. Assertion is true, but Reason is false.
d. Assertion is false, but Reason is true.
15. Green leaf-like modified aerial stems/branches with a single internode are called
a. Bulbils
b. Cladodes
c. Phylloclades
d. Phyllodes
16. Cymose inflorescence is present in
a. Trifolium
b. Brassica
c. Solanum
d. Sesbania
17. In groundnut, the root is
a. Epiphytic
b. Napiform
c. Nodulated
d. Photosynthetic
18. In humid climate, function of spines in shrubs is
a. To defend against mammal herbivory
b. To defend against woodcutters
c. To reduce transpiration
d. To check seed predation by birds
19. In longitudinal section of a root, starting from the tip upward, the four zones occur in the following
order:
a. Cell division, cell maturation, cell enlargement, root cap
b. Root cap, cell division, cell enlargement, cell maturation
c. Root cap, cell division, cell maturation, cell enlargement
d. Cell division, cell enlargement, cell maturation, root cap
20. In which of the following plants leaf apex is modified into tendril?
a. Gloriosa
b. Eichhornia
c. Nymphaea
d. Parkinsonia
21. Parallel venation is found in:
a. Dentaria
b. Hollyhock
c. Banyan
d. Grasses
22. phylloclade is a modified
a. Bud
b. Tuber
c. Stem
d. Flower
23. rhizome is
a. Horizontal to soil surface
b. Sympodial
c. Diageotropic
d. All of these
24. Root cap is absent in
a. Mesophytes
b. Xerophytes
c. Hydrophytes
d. Halophytes
25. Which one of the following is considered important in the development of seed habit?
a. Heterospory
b. Dependent sporophyte
c. Free-living gametophyte
d. Haplontic life cycle
26. From evolutionary point of view, tracheids and sieve cells are more primitive than tracheae and sieve
tubes respectively. The angiosperms have:
a. Tracheae, sieve cells and sieve tubes
b. Tracheids, tracheae and sieve tubes
c. Tracheae and sieve tubes
d. Tracheids, tracheae and sieve cells
27. Roots of which plant contain a red pigment which has affinity for oxygen?
a. Carrot
b. Soybean
c. Mustard
d. Radish
28. Stem develops from
a. Cotyledons
b. Radicle
c. Plumule
d. Procambium
29. In unilocular ovary with a single ovule the placentation is
a. Basal
b. Marginal
c. Axile
d. Free Central
30. Bhojpatra is obtained from
a. Piper
b. Australian acacia
c. Cinchona
d. Bark of Betula
31. A fruit developed from hypanthodium inflorescence is called
a. Caryopsis
b. Hesperidium
c. Sorosis
d. Syconus
32. A group of flowering plants whose seed typically has two embryonic leaves or cotyledons is called
a. Dicotyledons
b. Monocotyledons
c. Magnolianae
d. None of these
33. Small sized plants which have soft stem are termed as
a. Bush
b. Shrubs
c. Herbs
d. Trees
34. cotyledons and testa respectively are edible parts in
a. Cashew nut and litchi
b. Groundnut and pomegranate
c. Walnut and tamarind
d. French bean and coconut
35. endosperm is consumed by developing embryo in the
a. Maize
b. Coconut
c. Castor
d. Pea
36. Fleshy adventitious roots are found in
a. Potato and onion
b. Radish and carrot
c. Dahlia and sweet potato
d. Turnip and rice
37. Ginger multiplies vegetatively by
a. Bud
b. Stem
c. Tuber
d. Rhizome
38. Closed vascular bundles lack
a. Cambium
b. Pith
c. Ground tissue
d. Conjunctive tissue
39. In an inflorescence, two types of small, sessile flowers were observed. They are arranged in
centripetal manner and have reduced hair like sepals. Which pair of the following characters are NOT
associated with such flowers?
I. Nectar glands at the base of the corolla.
II. Axile placentation.
III. Superior ovary.
IV. Scaly bracts.
The correct pair is:
a. II, III
b. III, IV
c. I, II
d. I, IV
40. placentation in tomato and lemon is
a. Marginal
b. Axile
c. Parietal
d. Free central
41. Vexillary aestivation is characteristic of the family
a. Solanaceae
b. Brassicaceae
c. Fabaceae
d. Asteraceae
42. phyllode is present in
a. Australian Acacia
b. Opuntia
c. Asparagus
d. Euphorbia
43. A bicollateral vascular bundle has the following arrangement of tissues.
a. Outer Phloem - Outer Xylem - Middle Cambium - Inner Xylem - Inner Phloem.
b. Outer Xylem - Outer Cambium - Middle Phloem - Inner Cambium - Inner Xylem.
c. Outer Phloem - Outer Cambium - Middle Xylem - Inner Cambium - Inner Phloem.
d. Outer Cambium - Outer Phloem - Middle Xylem - Inner Phloem - Inner Cambium.
44. Sunflower belongs to the family
a. Cruciferae
b. Asteraceae
c. Liliaceae
d. Fabaceae
45. anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
a. Absence of secondary phloem
b. Absence of secondary xylem
c. Position of protoxylem
d. Presence of cortex
46. Sieve tubes are present in
a. Parenchyma
b. Xylem
c. Phloem
d. Sclerenchyma
47. If a primary root continues to grow, the type of root system will be known as
a. Secondary
b. Fibrous
c. Tap
d. Stilt
48. The lateral roots originate from
a. Epiblema
b. Cortical cells below root hairs
c. Endoderm cells
d. Pericycle cells
49. Long filamentous threads protruding at the end of a young cob of maize are
a. Anthers
b. Styles
c. Ovaries
d. Hairs
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50. Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit
because
a. Megaspores possess endosperm and embryo surrounded by seed coat
b. Embryo develops in female gametophyte which is retained on parent sporophyte
c. Female gametophyte is free and gets dispersed like seeds
d. Female gametophyte lacks archegonia
Answer Keys
1. b 2. b 3. a 4. a 5. b
6. b 7. b 8. c 9. d 10. a
11. d 12. b 13. c 14. d 15. b
16. c 17. c 18. a 19. b 20. a
21. d 22. c 23. d 24. c 25. a
26. b 27. a 28. c 29. a 30. d
31. d 32. a 33. c 34. b 35. d
36. b 37. d 38. a 39. a 40. b
41. c 42. a 43. c 44. b 45. c
46. c 47. c 48. d 49. b 50. b
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