Morphology of flowering plants MCQ Solved Paper for SSC Scientific Assistant

1. Match column I with column II and choose the correct option.

Column-I	Column-II
A. Bud in the	I. Pitcher plant axil of leaf and venus fly trap
B. Outer layer of	II. Cacti seed coat
C. Spines	III. Testa (modified leaves)
D. Leaves modified	IV. Simple leaf to catch insects
E. Fleshy leaves	V. Garlic and onion with stored food

A. A I, B II, C III, D IV, E V
B. A V, B IV, C III, D II, E I
C. A IV, B III, C II, D I, E V
D. A IV, B II, C III, D I, E V
Answer : C

2. Statement 1 : A simple leaf has undivided lamina.
Statement 2 : Leaves showing pinnate and palmate venations have various type of incisions.
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 not a correct explanation for statement-1.
C. Statement-1 is true and statement-2 is false.
D. Both the statements are false.
Answer : B

3. 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

4. Identify the correct families of the given plant species (A, B and C) 

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

5. 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

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

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

8. 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

9. 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

10. Match column-I with column-II and choose the option which shows their correct combination.

Column-I	Column-II
A. Gamosepalous	I. Flower of lily
B. Polysepalous	II. Sterile anther
C. Gamopetalous	III. Free petals
D. Polypetalous	IV. Free sepals
E. Epiphyllous	V. Fused petals
F. Staminode	VI. 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

11. 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

12. 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

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. 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

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

16. 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

17. Which of the following groups of plants have underground stems?
A. Potato, ginger, turmeric, Euphorbia, zaminkand
B. Potato, ginger, turmeric, zaminkand, Colocasia
C. Potato, Citrus, Opuntia, zaminkand, Colocasia
D. Potato, cucumber, watermelon, zaminkand, Colocasia
Answer : B

18. The part of the root which is most active in water absorption is called
A. root cap
B. maturation zone
C. meristematic zone
D. zone of elongation
Answer : B

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

20. 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

21. 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

22. Which of the following statement(s) is/are correct about the fruit?

1. Fruit is a mature or ripened ovary, developed before fertilization.
2. It consists of a wall or pericarp and seeds.
3. When pericarp is thick and fleshy, it is differentiated into outer mesocarp, middle epicarp and the inner endocarp.
4. In mango and coconut, the fruit is known as a berry.

A. Only (i)
B. Both (ii) and (iii)
C. Only (ii)
D. All of these
Answer : C

23. 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

24. The mature seeds of plants such as gram and peas, possess no endosperm, because
A. these plants are not angiosperms.
B. there is no double fertilization in them.
C. endosperm is not formed in them.
D. endosperm gets used up by the developing embryo during seed development.
Answer : D

25. A sterile stamen is known as
A. staminode
B. anther
C. pollen grain
D. filament
Answer : A

26. 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

27. 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

28. 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

29. 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

30. 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

31. Root hairs develop from
A. region of maturation
B. region of elongation
C. region of meristematic activity
D. root cap
Answer : A

32. Match column-I with column-II and choose the correct option.

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
F. Lupin, sweet potato	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

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

34. 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

35. Stem tendrils are found in
A. cucumber
B. pumpkins
C. grapevines
D. all of these
Answer : D

36. 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

37. 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

38. 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

39. Which of the following is the green expanded part of leaf with vein and veinlets?
A. Petiole
B. Node
C. Stipule
D. Lamina
Answer : D

40. 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

41. 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

42. 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

43. Which type of function is performed by the fleshy leaves of onion and garlic?
A. Storage
B. Reproduction
C. Photosynthesis
D. Protection
Answer : A

44. Match the column-I containing types of aestivation with their examples given in column-II and choose the correct option.

Column - I	Column-II
(Type of aestivation)	(Examples)
A. Valvate	I. Cotton
B. Twisted	II. Calotropis
C. Imbricate	III. Bean
D. Vexillary	IV. Gulmohar

A. A I; B II; C IV; D III
B. A II; B I; C IV; D III
C. A II; B IV; C I; D III
D. A II; B I; C III; D IV
Answer : B

45. 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

46. 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

47. 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

48. 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

49. 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