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Morphology of flowering plants 1000+ MCQ with answer for GMAT

Thursday 9th of March 2023

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1. Match the column I with column II and choose the option which shows their correct match.
Column IColumn II
A. Placentation(i) Arrangement of flowers on the rachis
B. Aestivation(ii) Modified shoot for sexual reproduction
C. Inflorescence(iii) Arrangement of various whorls in the bud
D. Flower(iv) Arrangement of ovules within an ovary

A. A - (i), B - (ii), C - (iii), D - (iv)
B. A - (iii), B - (i), C - (ii), D - (iv)
C. A - (iii), B - (i), C - (iv), D - (ii)
D. A - (iv), B - (iii), C - (i), D - (ii)
Answer : D
2. Which one of the following characteristics is not related to gynoecium?
A. It is the female reproductive part of the flower.
B. It is composed of stamens.
C. Stigma is usually at the tip of the style and is the receptive surface for pollen grains.
D. Each ovary bears one or more ovules attached to a flattened, cushion like placenta.
Answer : B
3. Which is not a stem modification ?
A. Rhizome of ginger
B. Corm of Colocasia
C. Pitcher of Nepenthes
D. Tuber of potato
Answer : C
4. When a flower has both androecium and gynoecium, it is known as__________.
A. asexual
B. bisexual
C. unisexual
D. multisexual
Answer : B
5. Which of the following statement(s) is/are correct about calyx?
A. Calyx is the outermost whorl of the flower and are called sepals.
B. Sepals are green, leaf like and protect the flower in the bud stage.
C. The calyx may be gamosepalous (sepals free) or polysepalous (sepals united).
D. Both (a) and (b)
Answer : D
6. The given figure shows a typical structure of monocotyledonous seeds. Identify A, B, C, D and E parts marked in the given figures. 
q13

A. A - Endosperm, B - Embryo, C - Scutellum, D - Coleorhiza, E - Coleoptile
B. A- Embryo, B - Endosperm, C - Scutellum, D - Coleoptile, E - Coleorhiza
C. A - Endosperm, B - Embryo, C - Scutellum, D - Coleoptile, E - Coleorhiza
D. A - Embryo, B - Endosperm, C - Scutellum, D - Coleorhiza, E - Coleoptile
Answer : C
7. The given figures (A & B) show two types of compound leaves. Choose the option which identity the correct compound leaf and their example (c).
q8

A. A - Pinnately compound leaf, C - Neem
B. A - Palmately compound leaf, C - Neem
C. B- Pinnately compound leaf, C - Silk cotton
D. B- Palmately compound leaf, C - Silk cotton
Answer : A
8. Match column-I with column-II and choose the option which shows their correct combination.
Column-IColumn-II
A. GamosepalousI. Flower of lily
B. PolysepalousII. Sterile anther
C. GamopetalousIII. Free petals
D. PolypetalousIV. Free sepals
E. EpiphyllousV. Fused petals
F. StaminodeVI. Fused sepals

A. A IV, B V, C III, D I, E VI, F II
B. A IV, B III, C V, D I, E II, F VI
C. A VI, B IV, C III, D V, E I, F II
D. A VI, B IV, C V, D III, E II, F I
Answer : C
9. Most prominent function of inflorescence is
A. dispersal of seeds.
B. formation of more fruits.
C. formation of pollen grains.
D. dispersal of pollens.
Answer : B
10. The given figure shows the parts of mango and coconut. Choose the option which shows the correct labelling of A, B, C and D marked in the figures. 
q11

A. A - Epicarp, B - Mesocarp, C - Seed, D - Endocarp
B. A - Epicarp, B - Mesocarp, C - Ovule, D - Endocarp
C. A - Epicarp, B - Mesocarp, C - Ovary, D - Endocarp
D. A - Epicarp, B - Mesocarp, C - Embryo, D - Endocarp
Answer : A
11. Main function of leaf is
A. exchange of gases
B. increase the beauty of a tree
C. manufacturing of food
D. nerve impulse induction
Answer : C
12. Which of the following statements are correct about the leaf?
  1. Leaf is a lateral, generally flattened structure borne on the stem.
  2. It develops at the node and bears a bud in its axil.
  3. Leaves originate from root apical meristems and arranged in an acropetal order.
  4. They are the most important vegetative organs for reproduction.

A. (i) and (ii)
B. (ii) and (iii)
C. (i), (ii) and (iv)
D. all of these
Answer : A
13. Which of the following is not the characteristic features of fabaceae?
A. Tap root system, compound leaves and raceme inflorescence.
B. Flowers actinomorphic, twisted aestivation and gamopetalous.
C. Stamens 10, introrse, basifixed, dithecous.
D. Monocarpellary, ovary superior and bent stigma.
Answer : B
14. Which of the following part elongates directly and leads to the formation of primary roots?
A. bud
B. radicle
C. plumule
D. root hair
Answer : B
15. Which of the following represents the floral characters of liliaceae?
A. Six tepals, zygomorphic, six stamens, bilocular ovary, axile placentation.
B. Actinomorphic, polyphyllous, unilocular ovary, axile placentation.
C. Tricorpellary, ctinomorphic, polyandrous, superior ovary, axile placentation.
D. Bisexual, zygomorphic, gamophyllous, inferior ovary, marginal placentation.
Answer : C
16. Statement-1 : Ginger has a prostrate-growing rhizome.
Statement-2 : Shoot growth is not effected by gravity.

A. Statement-1 and statement-2 are true and Statement-2 is a correct explanation for statement-1.
B. Statement-1 and statement-2 are true but statement-2 is a correct explanation for statement-1.
C. Statement-1 is true and statement-2 is false.
D. Both the statements are false.
Answer : B
17. The given figures (A and B) shows the modificaiton of roots.Which of the following statements regarding the figures is correct ? 
q3

A. Tap roots of carrot, turnip and adventitious root of sweet potato, get swollen and store food.
B. Pneumatophores conducts water, minerals & photosynthesis
C. Pneumatophore is found in the plants that grow in sandy soil.
D. Turnip & carrot shows adventitious roots and sweet potato shows tap root.
Answer : A
18. Read the following statements and answer the questions.
  1. Gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level.
  2. Ovary is half-inferior.
  3. Examples are plum, rose and peach.

Which condition of flowers is being described by the above statements ?

A. hypogyny
B. perigyny
C. epigyny
D. none of these
Answer : B
19. Roots develop from parts of the plant other than radicle are called
A. tap roots
B. fibrous roots
C. adventitious roots
D. nodular roots
Answer : C
20. Match the following stem modifications given in column I with their examples given in column II and select the correct combination from the options given below.
(Stem Modifications)(Found in)
A. Underground stemI. Euphorbia
B. Stem tendrilII. Opuntia
C. Stem thornsIII. Potato
D. Flattened stemIV. Citrus
E. Fleshy cylindrical stemV. Cucumber

A. A I, B II, C III, D V, E IV
B. A II, B III, C IV, D V, E I
C. A III, B IV, C V, D I, E II
D. A III, B V, C IV, D II, E I
Answer : D
21. How many plants in the list given below have marginal placentation?
  1. Mustard
  2. Gram
  3. Tulip
  4. Asparagus
  5. Arhar
  6. Sunhemp
  7. Chilli
  8. Colchicine
  9. Onion
  10. Moong
  11. Pea
  12. Tobacco
  13. Lupin

A. Four
B. Five
C. Six
D. Three
Answer : C
22. Fibrous roots develop in maize from
A. upper nodes
B. lower nodes
C. upper internodes
D. none of these
Answer : B
23. When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is known as
A. actinomorphic
B. zygomorphic
C. asymmetric
D. bisymmetric
Answer : A
24. Match column - I, II and III and choose the correct option. 
q1

A. A - V, t; B - II, s; C -I, r; D -III, q; E -IV, p
B. A - I, t; B - II, s; C - III, r; D - IV, p; E - V, q
C. A - V, p; B - II, s; C - I, q; D - III, r; E - IV, t
D. A - V, p; B - III, q; C - II, s; D - I, t; E - IV, r
Answer : A
25. Which one of the following statement is correct?
A. Bulb of Allium cepa is a modified stem.
B. Cloves of Allium sativum are fleshy scale leaves.
C. Corm of Colocasia is a modified root.
D. Tendril in Vitis vinifera is a modified axillary bud.
Answer : A
26. Identify the inflorescence shown by the given figures A and B. 
q5

A. A-Cymose, B-Racemose
B. A-Racemose, B-Cymose
C. A-Racemose, B-Racemose
D. A-Cymose, B-Cymose
Answer : B
27. Seeds are regarded as products of sexual reproduction because they
A. can be stored for long time.
B. are result of fusion of pollen tube.
C. are result of fusion of gametes.
D. give rise to new plants.
Answer : C
28. Given figures (A, B and C) shows the position of floral parts on thalamus. (given as I, II and III) Select the correct combination.
q7

  1. Hypogynous flower

  2. Perigynous flower

  3. Epigynous flower


A. A-I, B-II, C-III
B. A-I, B-III, C-II
C. A-III, B-II, C-I
D. A-III, B-I, C-II
Answer : A
29. The X is small and situated in a groove at one end of the endosperm. It consists of one large and shield shaped cotyledon known as Y and a short axis with a plumule and a Z. Identify X, Y and Z.
A. X - Scutellum, Y - Embryo, Z - Radicle
B. X - Embryo, Y - Scutellum, Z - Radicle
C. X - Scutellum, Y - Radicle, Z - Embryo
D. X - Radicle, Y - Embryo, Z - Scutellum
Answer : B
30. Matching colmun I with column II and choose the correct option.
Column IColumn II
A. ColeorhizaI. Grapes
B. Food storing tissueII. Mango
C. Parthenocarpic fruitIII. Maize
D. Single seeded fruitIV. Radicle developing from monocarpellary superior ovary
E. MembranousV. Endosperm seed coat

A. A III, B I, C IV, D II, E V
B. A IV, B II, C V, D I, E III
C. A V, B I, C III, D IV, E II
D. A IV, B V, C I, D II, E III
Answer : D
31. A - Which one of the option shows the correct labelling of the parts marked as A, B, C and D in a typical structure of dicotyledonous seeds ? 
q12

A. A - Hilum, B - Micropyle, C - Radicle, D - Cotyledon, E - Plumule
B. A - Hilum, B - Micropyle, C - Plumule, D - Cotyledon, E - Radicle
C. A - Micropyle, B - Hilum, C - Plumule, D - Cotyledon, E - Radicle
D. A - Hilum, B - Micropyle, C - Plumule, D - Radicle, E - Cotyledon
Answer : B
32. Cotyledons and testa respectively are edible parts in which of the following group?
A. walnut and tamarind
B. cashew nut and litchi
C. french bean and coconut
D. groundnut and pomegranate
Answer : D
33. The flower is the reproductive unit in the ___________ meant for ___________ reproduction.
A. angiosperms and sexual
B. gymnosperms and sexual
C. algae and asexual
D. pteridophytes and asexual
Answer : A
34. The given figure shows the parts of flowering plant. Which parts of the given figure were involved in the following functions:

  1. Storing reserve food material

  2. Synthesis of plant growth regulators.

  3. Absorption of water and minerals from the soil.

  4. Providing a proper anchorage to the plant parts


q16

A. 5 and 6
B. 1, 2 and 6
C. 1, 2, 3 and 4
D. 2, 4, 5 and 6
Answer : A
35. Match the following placentation types given in column I with their examples given in column II and choose the correct combination from the options given below.
(Placentation Types)(Examples)
A. BasalI. Dianthus
B. Free centralII. Pea
C. ParietalIII. Lemon
D. AxileIV. Marigold
E. MarginalV. Argemone

A. A I, B II, C III, D IV, E V
B. A II, B III, C IV, D V, E I
C. A IV, B I, C V, D III, E II
D. A IV, B III, C V, D I, E II
Answer : C
36. The character of flower which is represented by floral formula but not by floral diagram is
A. aestivation
B. placentation
C. position of gynoecium
D. adhesion of stamen
Answer : C
37. Which of the following plants is growing in swampy areas, where many roots come out of the ground and grow vertically upwards?
A. Potato
B. Opuntia
C. Rhizophora
D. Grass
Answer : C
38. Identify the correct families of the given plant species (A, B and C) 
q14

A. A - Liliaceae, B - Compositae, C - Malvaceae
B. A - Fabaceae, B - Solanaceae, C - Liliaceae
C. A - Compositae, B - Malvaceae, C - Liliaceae
D. A - Solanaceae, B - Fabaceae, C - Liliaceae
Answer : B
39. Which of the following statements are correct?
  1. From the region of elongation, some of the epidermal cells form root hairs.
  2. Pneumatophores are seen in Rhizophora.
  3. Adventitious roots are seen in the banyan tree.
  4. Maize and sugarcane have prop roots.

A. (i) and (iv)
B. (i), (iii) and (iv)
C. (iii) and (iv)
D. (ii) and (iii)
Answer : D
40. Identify the different types of aestivation (A, B, C and D) in corolla and select the correct option. 
q6

A. A-Valvate, B-Twisted, C-Imbricate, D-Vexillary
B. A-Vexillary, B-Valvate, C-Twisted, D-Imbricate
C. A-Imbricate, B-Vexillary, C-Valvate, D-Twisted
D. A-Twisted, B-Imbricate, C-Vexillary, D-Valvate
Answer : A
41. Consider the following statements regarding the root system of angiosperms and choose the correct option given below.
  1. In monocots, the fibrous root system arises from the base of the stem.
  2. The region of elongation is called the root hair region.
  3. In sweet potato, the adventitious roots get swollen and store food.
  4. The stems of maize and sugarcane have supporting roots called prop roots.

A. (i) and (ii) are correct but (iii) and (iv) are wrong.
B. (ii) and (iii) are correct but (i) and (iv) are wrong.
C. (ii) and (iv) are correct but (i) and (iii) are wrong.
D. (i) and (iii) are correct but (ii) and (iv) are wrong.
Answer : D
42. Read the following statements and answer the question.
  1. It is the pattern of arrangement of leaves on the stem or branch.
  2. It is usually of three types - alternate, opposite and whorled.
  3. It is meant for getting maximum amount of light. statements?

A. Phyllotaxy
B. Venation
C. Inflorescencew
D. Aestivation
Answer : A
43. The primary roots and its branches constitute the
A. fibrous root system.
B. tap root system.
C. adventitious root system.
D. all of the above
Answer : B
44. A scar on the seed coat through which the developing seeds attached to the fruit is called as ________.
A. testa
B. tegmen
C. hilum
D. micropyle
Answer : C
45. Leaves of dicotyledonous plants possess _________ venation, while _________ venation is the characteristic of most monocotyledons.
A. reticulate and parallel
B. parallel and reticulate
C.D. obliquely and parallel
Answer : A
46. Ginger is an underground stem. It is distinguished from root because
A. it lacks chlorophyll.
B. it stores food.
C. it has nodes and internodes.
D. it has xylem and vessels.
Answer : C
47. Which of the following statement(s) is /are correct?
  1. Many plants belong to family fabaceae are good ornamentals (Tulip, Gloriosa), source of medicine (Aloe) and vegetables (Asparagus).
  2. The plumule and radicle are enclosed in sheaths which are called coleorhiza and coleoptile respectively.
  3. A flower having either only stamens or only carpels is unisexual.
  4. Basal, alternate, linear, exstipulate with parallel venation types of leaves is found in the family liliaceae.

A. Only (i)
B. Both (i) and (ii)
C. Both (iii) and (iv)
D. All of these
Answer : C
48. The region of the root-tip which is involved in the formation of root hairs by epidermal cells is called the
A. region of maturation.
B. region of meristematic activity.
C. region of elongation.
D. none of the above.
Answer : A
49. The given figure shows the region of root tips with their region marked as A, B and C. Choose the option which shows the correct labelling of A, B and C. 
q2

A. A - Zone of elongation, B - Zone of meiosis, C - Zone of mitosis.
B. A - Zone of maturation, B - Zone of meristematic activity, C - Zone of elongation.
C. A - Zone of mitosis, B - Zone of elongation, C - Zone of root cap.
D. A - Region of maturation, B - Region of elongation, C - Zone of meristematic activity.
Answer : D
50. Which of the following is a modified stem for the protection of plants from browsing animals?
A. Tendrils
B. Thorns
C. Rhizome
D. Tuber
Answer : B

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