Morphology of flowering plants 1000+ MCQ with answer for JEE Main
Thursday 9th of March 2023
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1. Identify the kind of phyllotaxy shown in the given figures A, B, and C.
A. A-Alternate, B - Opposite, C - Whorled
B. A- Whorled, B - Opposite, C -Alternate
C. A-Alternate, B - Whorled, C - Opposite
D. A-Whorled, B -Alternate, C - Opposite
Answer : A
A. A-Alternate, B - Opposite, C - Whorled
B. A- Whorled, B - Opposite, C -Alternate
C. A-Alternate, B - Whorled, C - Opposite
D. A-Whorled, B -Alternate, C - Opposite
Answer : A
2. 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
A. A - seeds; B - fruit
B. A - fruit; B - seeds
C. A - flower; B - seed
D. A - seeds; B - flower
Answer : A
3. Study the following statements and select the correct option
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
- Buds are present in axil of leaflets of the compound leaf.
- Pulvinus leaf-base is present in some leguminous plants.
- In Alstonia, the petioles expand, become green and synthesize food.
- 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
4. 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
A. bud
B. radicle
C. plumule
D. root hair
Answer : B
5. The given figures (A & B) show two types of compound leaves. Choose the option which identity the correct compound leaf and their example (c).
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
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
6. How many plants in the list given below have marginal placentation?
A. Four
B. Five
C. Six
D. Three
Answer : C
- Mustard
- Gram
- Tulip
- Asparagus
- Arhar
- Sunhemp
- Chilli
- Colchicine
- Onion
- Moong
- Pea
- Tobacco
- Lupin
A. Four
B. Five
C. Six
D. Three
Answer : C
7. 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
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
8. Floral features are chiefly used in angiosperms identification because
A. flowers are of various colours.
B. flowers can be safely pressed.
C. reproductive parts are more stable and conservative than vegetative parts.
D. flowers are good materials for identification.
Answer : C
A. flowers are of various colours.
B. flowers can be safely pressed.
C. reproductive parts are more stable and conservative than vegetative parts.
D. flowers are good materials for identification.
Answer : C
9. 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
A. tap roots
B. fibrous roots
C. adventitious roots
D. nodular roots
Answer : C
10. When a flower has both androecium and gynoecium, it is known as__________.
A. asexual
B. bisexual
C. unisexual
D. multisexual
Answer : B
A. asexual
B. bisexual
C. unisexual
D. multisexual
Answer : B
11. 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.
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
| (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
12. 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
A. testa
B. tegmen
C. hilum
D. micropyle
Answer : C
13. Root hairs develop from
A. region of maturation
B. region of elongation
C. region of meristematic activity
D. root cap
Answer : A
A. region of maturation
B. region of elongation
C. region of meristematic activity
D. root cap
Answer : A
14. 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
A. it lacks chlorophyll.
B. it stores food.
C. it has nodes and internodes.
D. it has xylem and vessels.
Answer : C
15. 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
A. Petiole
B. Node
C. Stipule
D. Lamina
Answer : D
16. 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
A. reticulate and parallel
B. parallel and reticulate
C. reticulate and perpendicular
D. obliquely and parallel
Answer : A
17. 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. 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 :
18. 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
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
19. Consider the following statements regarding the root system of angiosperms and choose the correct option given below.
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
- In monocots, the fibrous root system arises from the base of the stem.
- The region of elongation is called the root hair region.
- In sweet potato, the adventitious roots get swollen and store food.
- 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
20. In which of the following plants, a slender lateral branch arises from the base of the main axis and after growing aerially arch downwards to touch the ground?
A. Mint and jasmine
B. Banana and pineapple
C. Grass and stawberry
D. Pistia and Eichhornia
Answer : A
A. Mint and jasmine
B. Banana and pineapple
C. Grass and stawberry
D. Pistia and Eichhornia
Answer : A
21. Pneumatophores are found in
A. the vegetation which is found in marshy and saline lake.
B. the vegetation which found in saline soil.
C. xerophytic condition.
D. hydrophytic condition.
Answer : A
A. the vegetation which is found in marshy and saline lake.
B. the vegetation which found in saline soil.
C. xerophytic condition.
D. hydrophytic condition.
Answer : A
22. Which of the following statement (s) is/are not correct?
A. (i) , (ii), (iii) and (iv)
B. (i), (ii) and (v)
C. (iii), (iv) and (vi)
D. (iv), (v) and (i)
Answer : A
- Calyx and corolla are reproductive organs of a flower.
- Zygomorphic flower can be divided into two equal radial halves in any radial plane.
- Flowers without bracts are termed as bracteate.
- Parthenocarpic fruit is formed after fertilization of the ovary.
- In legumes, seed is non-endospermic.
- Radical buds develop on roots.
A. (i) , (ii), (iii) and (iv)
B. (i), (ii) and (v)
C. (iii), (iv) and (vi)
D. (iv), (v) and (i)
Answer : A
23. 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
A. root cap
B. maturation zone
C. meristematic zone
D. zone of elongation
Answer : B
24. 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
A. Racemose, zygomorphic, unisexual, floral characters
B. Racemose, zygomorphic, bisexual, polypetalous
C. Axillary, bisexual, actinomorphic, epipetalous
D. Axillary, actinomorphic, bisexual, epipetalous
Answer : C
25. 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
A. fibrous root system.
B. tap root system.
C. adventitious root system.
D. all of the above
Answer : B
26. 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
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
27. 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
(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
28. 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
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
29. Match the column-I containing types of aestivation with their examples given in column-II and choose the correct option.
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
| 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
30. 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
A. dispersal of seeds.
B. formation of more fruits.
C. formation of pollen grains.
D. dispersal of pollens.
Answer : B
31. Alternate type of phyllotaxy is found in
A. china rose
B. mustard
C. sunflower
D. all of these
Answer : D
A. china rose
B. mustard
C. sunflower
D. all of these
Answer : D
32. 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
A. Potato
B. Opuntia
C. Rhizophora
D. Grass
Answer : C
33. 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
A. Tegmen
B. Scutellum
C. Hyaline layer
D. Aleurone layer
Answer : D
34. 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 elongaton, 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
A. A - Zone of elongaton, 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
35. 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
A. exchange of gases
B. increase the beauty of a tree
C. manufacturing of food
D. nerve impulse induction
Answer : C
36. 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
A. storage of food in endosperm.
B. protection of embryo.
C. utilization of stored food.
D. all of the above.
Answer : C
37. Match column-I with column-II and choose the correct option.
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
| 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
38. Match column-I with column-II and choose the option which shows their correct combination.
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
| 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
39. Which one of the following statement is not correct?
A. Each stamen which represents the male reproductive organ consists of a stalk or a filament and an anther.
B. An actinomorphic flower can be dissected into two equal halves from any plane.
C. Superior ovary is found in hypogynous flowers.
D. When stamens are attached to the petals, they are epiphyllous as in brinjal.
Answer : D
A. Each stamen which represents the male reproductive organ consists of a stalk or a filament and an anther.
B. An actinomorphic flower can be dissected into two equal halves from any plane.
C. Superior ovary is found in hypogynous flowers.
D. When stamens are attached to the petals, they are epiphyllous as in brinjal.
Answer : D
40. Which of the following is an example of pinnately compound leaf ?
A. Cucumber
B. Papaya
C. Cucurbita
D. Neem
Answer : D
A. Cucumber
B. Papaya
C. Cucurbita
D. Neem
Answer : D
41. Which is not a stem modification ?
A. Rhizome of ginger
B. Corm of Colocasia
C. Pitcher of Nepenthes
D. Tuber of potato
Answer : C
A. Rhizome of ginger
B. Corm of Colocasia
C. Pitcher of Nepenthes
D. Tuber of potato
Answer : C
42. X is the outermost whorl of the flower and contains Y. Y is green, leaf like and protect the other whorls of the flower. Identify X and Y.
A. X - Calyx; Y - Sepals
B. X - Corolla; Y - Petals
C. X - Gynoecium; Y - Fruit
D. X - Androecium; Y - Ovary
Answer : A
A. X - Calyx; Y - Sepals
B. X - Corolla; Y - Petals
C. X - Gynoecium; Y - Fruit
D. X - Androecium; Y - Ovary
Answer : A
43. Identify the inflorescence shown by the given figures A and B.
A. A-Cymose, B-Racemose
B. A-Racemose, B-Cymose
C. A-Racemose, B-Racemose
D. A-Cymose, B-Cymose
Answer : B
A. A-Cymose, B-Racemose
B. A-Racemose, B-Cymose
C. A-Racemose, B-Racemose
D. A-Cymose, B-Cymose
Answer : B
44. 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
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
45. 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
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
46. Which one of the following characteristics does not belong to parietal placentation?
A. Ovules are borne on central axis.
B. Ovary is one-chambered but it becomes two-chambered due to the formation of false septum.
C. Examples are mustard and Argemone.
D. Both (b) and (c)
Answer : A
A. Ovules are borne on central axis.
B. Ovary is one-chambered but it becomes two-chambered due to the formation of false septum.
C. Examples are mustard and Argemone.
D. Both (b) and (c)
Answer : A
47. 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
A. walnut and tamarind
B. cashew nut and litchi
C. french bean and coconut
D. groundnut and pomegranate
Answer : D
48. 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
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
49. Matching colmun I with column II and choose the correct option.
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
| 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
50. Pollen grains are produced within _________of stamen.
A. ovary
B. anther
C. filament
D. connective
Answer : B
A. ovary
B. anther
C. filament
D. connective
Answer : B
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