Morphology of flowering plants 1000+ MCQ with answer for ESIC

1. Matching colmun I with column II and choose the correct option.

Column I	Column II
A. Coleorhiza	I. Grapes
B. Food storing tissue	II. Mango
C. Parthenocarpic fruit	III. Maize
D. Single seeded fruit	IV. Radicle developing from monocarpellary superior ovary
E. Membranous	V. 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

2. Fibrous roots develop in maize from
A. upper nodes
B. lower nodes
C. upper internodes
D. none of these
Answer : B

3. The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the
A. region of maturation.
B. region of elongation.
C. region of meristematic activity.
D. root-hairs.
Answer : B

4. 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

5. Leaves of dicotyledonous plants possess _________ venation, while _________ venation is the characteristic of most monocotyledons.
A. reticulate and parallel
B. parallel and reticulate
C. reticulate and perpendicular
D. obliquely and parallel
Answer : A

6. Match the column I with column II and choose the option which shows their correct match.

Column I	Column 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

7. 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

8. During the post-fertilization period, the ovules develops into ___A____ and the ovary matures into a ___B ____.
A. A - seeds; B - fruit
B. A - fruit; B - seeds
C. A - flower; B - seed
D. A - seeds; B - flower
Answer : A

9. The main function(s) of root system is/are
A. absorption of water and minerals from the soil
B. storing reserve food material
C. synthesis of plant growth regulators
D. All of the above
Answer : D

10. Rearrange the following zones seen in the regions of root tip and choose the correct option.
(A) Root hair zone
(B) Zone of meristems
(C) Root cap zone
(D) Zone of maturation
(E) Zone of elongation
A. C, B, E, A, D
B. A, B, C, D, E
C. D, E, A, C, B
D. E, D, C, B, A
Answer : A

11. Which of the following is correct with reference to floral character of family solanaceae?
A. Racemose, zygomorphic, unisexual, floral characters
B. Racemose, zygomorphic, bisexual, polypetalous
C. Axillary, bisexual, actinomorphic, epipetalous
D. Axillary, actinomorphic, bisexual, epipetalous
Answer : C

12. 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, actinomorphic, polyandrous, superior ovary, axile placentation.
D. Bisexual, zygomorphic, gamophyllous, inferior ovary, marginal placentation.
Answer : C

13. Which one of the following option shows the correct labelling of the structure marked as A, B, C & D? 

A. A - Gynoecium, B - Megasporophyll, C - Ovule, D - Thalamus
B. A - Gynoecium, B - Stamen, C - Seed, D - Thalamus
C. A - Microsporophyll, B - Stamen, C - Ovule, D - Thalamus
D. A - Gynoecium, B - Stamen, C - Ovule, D - Thalamus
Answer : D

14. 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

15. 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./li>
   
3. Absorption of water and minerals from the soil.


4. Providing a proper anchorage to the plant parts

A. 5 and 6
B. 1, 2 and 6
C. 1, 2, 3 and 4
D. 2, 4, 5 and 6
Answer : A

16. 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

17. Which one of the following structure is not associated with gynoecium?
A. Ovary
B. Style
C. Stigma
D. Filament
Answer : D

18. 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

19. The given figures (A and B) shows the modificaiton of roots.Which of the following statements regarding the figures is correct ? 

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

20. 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

21. It is a proteinous layer and the outer covering of endosperm which separates the embryo. Identify the layer.
A. Tegmen
B. Scutellum
C. Hyaline layer
D. Aleurone layer
Answer : D

22. 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. Basal	I. Dianthus
B. Free central	II. Pea
C. Parietal	III. Lemon
D. Axile	IV. Marigold
E. Marginal	V. 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

23. 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

24. Prop roots of banyan tree are meant for
A. respiration.
B. absorption of water from soil.
C. providing support to big tree.
D. all of the above.
Answer : C

25. 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

26. In flower (X), the gynoecium occupies the highest position while the other parts are situated below it. The ovary in such flowers is said to be Y. Identify X and Y and select the correct option.
A. X - Epigynous, Y - Inferior
B. X - Perigynous, Y - Superior
C. X - Hypogynous, Y - Superior
D. X - Perigynous, Y - Half-inferior
Answer : C

27. Aleurone layer helps in
A. storage of food in endosperm.
B. protection of embryo.
C. utilization of stored food.
D. all of the above.
Answer : C

28. The given figure (A, B, and C) shows different types of roots. Identify the root which is seen in wheat plant and originate from the base of the stem? 

A. A
B. B
C. C
D. Both A and B
Answer : B

29. Identify the different types of aestivation (A, B, C and D) in corolla and select the correct option. 

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

30. 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 stem	I. Euphorbia
B. Stem tendril	II. Opuntia
C. Stem thorns	III. Potato
D. Flattened stem	IV. Citrus
E. Fleshy cylindrical stem	V. 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

31. Match column-I with column-II and choose the correct option.
F. Lupin, sweet potato

A. Gram, sem, moong,	I. Medicine soyabean
B. Soyabean,groundnut	II. Ornamental
C. Indigofera	III. Fodder
D. Sunhemp	IV. Fibres
E. Sesbania, Trifolium	V. Dye
VI. Edible oil
G. Mulethi	VII. Pulses

A. A I, B II, C III, D IV, E V, F VI, G VII
B. A VII, B VI, C V, D IV, E III, F II, G I
C. A II, B IV, C VI, D I, E III, F V, G VII
D. A I, B III, C V, D VII, E II, F IV, G VI
Answer : B

32. Which of the following statements is correct?
A. Imbricate aestivation is found in papilionaceous family.
B. Generally sepals are green, leaf like and protect the flowers in the bud stage.
C. In cymose type of inflorescence, the main axis terminates in a flower, hence is limitless in growth.
D. In axile placentation ovary is one chambered but it becomes two cambered due to formation of the false septum.
Answer : B

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. 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

35. Which is not a stem modification ?
A. Rhizome of ginger
B. Corm of Colocasia
C. Pitcher of Nepenthes
D. Tuber of potato
Answer : C

36. 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. 

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

37. Which of the following statement(s) is/are correct about venation?
(i) The arrangement of veins and the veinlets in the lamina of leaf is called venation.
(ii) Reticulate venation is the characteristic of monocots.
(iii) When the veinlets form a network, the venation is termed as reticulate venation.
(iv) When the veins run parallel to each other, within a lamina, the venation is termed as parallel venation.
A. Only (i)
B. Both (i) and (ii)
C. (i), (iii) and (iv)
D. All of these
Answer : C

38. Pollen grains are produced within _________of stamen.
A. ovary
B. anther
C. filament
D. connective
Answer : B

39. 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

40. 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

41. 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

42. The given figure shows a typical structure of monocotyledonous seeds. Identify A, B, C, D and E parts marked in the given figures. 

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

43. 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

44. 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. 

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

45. Study the following statements and select the correct option

1. Buds are present in axil of leaflets of the compound leaf.
2. Pulvinus leaf-base is present in some leguminous plants.
3. In Alstonia, the petioles expand, become green and synthesize food.
4. Opposite phyllotaxy is seen in guava.

A. (ii) and (iv) are correct but (i) and (iii) are incorrect.
B. (i) and (iii) are correct but (ii) and (iv) are incorrect.
C. (i) and (iv) are correct but (ii) and (iii) are incorrect.
D. (ii), (iii) and (iv) are correct but (i) is incorrect.
Answer : A

46. 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

47. When a flower has both androecium and gynoecium, it is known as__________.
A. asexual
B. bisexual
C. unisexual
D. multisexual
Answer : B

48. Which of the following option shows the correct labelling of the parts of leaf marked as A, B, C and D.

A. A - Lamina, B - Axillary bud, C - Stipule, D - Leaf base
B. A - Lamina, B - Stipule, C - Axillary bud, D - Leaf base
C. A - Lamina, B - Axillary bud, C - Stipule, D - Pedicel
D. A - Leaflet, B - Axillary bud, C - Stipule, D - Leaf base
Answer : A

49. Fibrous root system is better adopted than tap root system for
A. transport of organic matter.
B. absorption of water and minerals.
C. storage of food.
D. anchorage of plant to soil.
Answer : D

50. The region of the stem where leaves are born are called ____________ while ____________ are the portions between two ____________.
A. nodes, nodes and internodes
B. nodes, internodes and nodes
C. internodes, nodes and nodes
D. internodes, internodes and nodes
Answer : B