Anatomy of flowering plant MCQ Solved Paper for LSAT
Thursday 9th of March 2023
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1. The given figure shows the secondary growth in a dicot stem. Their parts are marked as A, B, C, D, E & F. Choose the correct labelling of the parts marked as A to F.
A. A Phellem, B Phellogen, C Medullary rays, D Secondary xylem, E Secondary phloem, F Cambium ring
B. A Phellem, B Phellogen, C Medullary rays, D Secondary phloem, E Secondary xylem, F Cambium ring
C. A Phellogen, B Phellem, C Medullary rays, D Secondary xylem, E Secondary phloem, F Cambium ring
D. A Phellem, B Phellogen, C Cambium ring, D Secondary xylem, E Secondary phloem, F Medullary rays
Answer : A
A. A Phellem, B Phellogen, C Medullary rays, D Secondary xylem, E Secondary phloem, F Cambium ring
B. A Phellem, B Phellogen, C Medullary rays, D Secondary phloem, E Secondary xylem, F Cambium ring
C. A Phellogen, B Phellem, C Medullary rays, D Secondary xylem, E Secondary phloem, F Cambium ring
D. A Phellem, B Phellogen, C Cambium ring, D Secondary xylem, E Secondary phloem, F Medullary rays
Answer : A
2. As secondary growth proceeds, in a dicot stem, the thickness of
A. sapwood increases.
B. heartwood increase.
C. both sapwood and heartwood increases.
D. both sapwood and heartwood remains the same.
Answer : C
A. sapwood increases.
B. heartwood increase.
C. both sapwood and heartwood increases.
D. both sapwood and heartwood remains the same.
Answer : C
3. Which one of the followings option shows the correct labelling of the parts marked as A, B, C and D in the given figure a lenticel?
A. A Epidermis, B Secondary cortex, C Cork cambium, D Cork
B. A Pore, B Cork cambium, C Secondary cortex, D Cork
C. A Pore, B Cork, C Complimentary cells, D Cork cambium
D. A Epidermis, B Complimentary cells, C Cork cambium, D Secondary cortex
Answer : D
A. A Epidermis, B Secondary cortex, C Cork cambium, D Cork
B. A Pore, B Cork cambium, C Secondary cortex, D Cork
C. A Pore, B Cork, C Complimentary cells, D Cork cambium
D. A Epidermis, B Complimentary cells, C Cork cambium, D Secondary cortex
Answer : D
4. An organised and differentiated cellular structure having cytoplasm but no nucleus is called _________.
A. vessels
B. xylem parenchyma
C. sieve tubes
D. tracheids
Answer : C
A. vessels
B. xylem parenchyma
C. sieve tubes
D. tracheids
Answer : C
5. Which of the following is responsible for the formation of an embryonic shoot called axillary bud?
A. Lateral meristem
B. Apical meristem
C. Intercalary meristem
D. Both
Answer : C
A. Lateral meristem
B. Apical meristem
C. Intercalary meristem
D. Both
Answer : C
6. The given figure shows the T.S of dicot root. Some parts are marked as A, B, C, D, E, & F. Choose the option which shows the correct labelling of marked part.
A. A Epiblema, B Root hair, C Cortex, D Endodermis, E Pith, F Pericycle
B. A Cortex, B Pith, C Epiblema, D Endodermis, E Root hair, F Pericycle
C. A Epiblema, B Endodermis, C Cortex, D Root hair, E Pith, F Pericycle
D. A Cortex, B Epiblema, C Pith, D Endodermis, E Root hair, F Pericycle
Answer : D
A. A Epiblema, B Root hair, C Cortex, D Endodermis, E Pith, F Pericycle
B. A Cortex, B Pith, C Epiblema, D Endodermis, E Root hair, F Pericycle
C. A Epiblema, B Endodermis, C Cortex, D Root hair, E Pith, F Pericycle
D. A Cortex, B Epiblema, C Pith, D Endodermis, E Root hair, F Pericycle
Answer : D
7. Match column-I with column-II and choose the correct option.
Which of the following combination is correct ?
A. A II, IV, VII, VIII; B I, III, V, VI
B. A I, II, VII, VIII; B III, IV, V, VI
C. A I, III, V, VI; B II, IV, VII, VIII
D. A I, III, VII, VIII; B II, IV, V, VI
Answer : C
| A. Spring wood or | I. Lighter in colour early wood |
|---|---|
| B. Autumn wood or | II. High density late wood |
| .. | III. Low density |
| .. | IV. Darker in colour |
| .. | V. Larger number of xylem elements |
| .. | VI. Vessels with wider cavity |
| .. | VII. Lesser number of xylem elements |
| .. | VIII. Vessels with small cavity |
Which of the following combination is correct ?
A. A II, IV, VII, VIII; B I, III, V, VI
B. A I, II, VII, VIII; B III, IV, V, VI
C. A I, III, V, VI; B II, IV, VII, VIII
D. A I, III, VII, VIII; B II, IV, V, VI
Answer : C
8. Phellogen and phellem respectively denote
A. cork and cork cambium,
B. cork cambium and cork,
C. secondary cortex and cork,
D. cork and secondary cortex,
Answer : B
A. cork and cork cambium,
B. cork cambium and cork,
C. secondary cortex and cork,
D. cork and secondary cortex,
Answer : B
9. A vascular bundle in which the protoxylem is pointing to the periphery is called __________.
A. endarch
B. exarch
C. radial
D. closed
Answer : B
A. endarch
B. exarch
C. radial
D. closed
Answer : B
10. During the formation of leaves and elongation of stem, some cells left behind from the shoot apical meristem, constitute the
A. lateral meristem
B. axillary bud
C. cork cambium
D. fascicular cambium
Answer : B
A. lateral meristem
B. axillary bud
C. cork cambium
D. fascicular cambium
Answer : B
11. One of the primary function of the ground tissue in a plant is
A. photosynthesis.
B. to protect the plant.
C. to anchor the plant.
D. water and sugar conduction.
Answer : A
A. photosynthesis.
B. to protect the plant.
C. to anchor the plant.
D. water and sugar conduction.
Answer : A
12. Match the elements of xylem given in column I with their character given in the column II and choose the correct option.
A. A IV; B III; C II; D I
B. A III; B II; C I; D IV
C. A II; B I; C IV; D III
D. A III; B IV; C II; D I
Answer : D
| Column-I | Column-II |
|---|---|
| A. Xylem vessels | I. Store food materials |
| B. Xylem tracheids | II. Obliterated lumen |
| C. Xylem fibres | III. Perforated plates |
| D. Xylem parenchyma | IV. Chisel-like ends |
A. A IV; B III; C II; D I
B. A III; B II; C I; D IV
C. A II; B I; C IV; D III
D. A III; B IV; C II; D I
Answer : D
13. Which one of the following option shows the correct labelling of the parts marked as A, B, C and D in the given figure of a typical dicot root?
A. A Primary phloem, B Vascular cambium, C Secondary phloem, D Primary xylem
B. A Secondary phloem, B Vascular cambium, C Primary phloem, D Primary xylem
C. A Primary phloem, B Primary xylem, C Secondary phloem, D Vascular cambium
D. A Secondary phloem, B Primary xylem, C Primary phloem, D Vascular cambium
Answer : A
A. A Primary phloem, B Vascular cambium, C Secondary phloem, D Primary xylem
B. A Secondary phloem, B Vascular cambium, C Primary phloem, D Primary xylem
C. A Primary phloem, B Primary xylem, C Secondary phloem, D Vascular cambium
D. A Secondary phloem, B Primary xylem, C Primary phloem, D Vascular cambium
Answer : A
14. Cork is formed from
A. phellogen
B. vascular cambium
C. phloem
D. xylem
Answer : A
A. phellogen
B. vascular cambium
C. phloem
D. xylem
Answer : A
15. Which meristem helps in increasing girth?/strong>
A. Lateral meristem
B. Intercalary meristem
C. Primary meristem
D. Apical meristem
Answer : A
A. Lateral meristem
B. Intercalary meristem
C. Primary meristem
D. Apical meristem
Answer : A
16. The trees growing in desert will
A. show alternate rings of xylem and sclerenchyma.
B. have only conjunctive tissue and phloem is formed by the activity of cambium.
C. show distinct annual rings.
D. not show distinct annual rings.
Answer : D
A. show alternate rings of xylem and sclerenchyma.
B. have only conjunctive tissue and phloem is formed by the activity of cambium.
C. show distinct annual rings.
D. not show distinct annual rings.
Answer : D
17. Cells of permanent tissues are specialized
A. functionally.
B. only structurally.
C. both structurally and functionally.
D. for mitosis.
Answer : C
A. functionally.
B. only structurally.
C. both structurally and functionally.
D. for mitosis.
Answer : C
18. Main function of lenticel is
A. transpiration
B. guttation
C. gaseous exchange
D. both (a) & (c)
Answer : A
A. transpiration
B. guttation
C. gaseous exchange
D. both (a) & (c)
Answer : A
19. In land plants, the guard cells differ from other epidermal cells in having
A. cytoskeleton.
B. mitochondria.
C. endoplasmic reticulum.
D. chloroplasts.
Answer : D
A. cytoskeleton.
B. mitochondria.
C. endoplasmic reticulum.
D. chloroplasts.
Answer : D
20. Match column-I with column-II and choose the correct option.
A. A III, B V, C IV, D I, E II
B. A II, B V, C I, D III, E IV
C. A II, B IV, C I, D III, E V
D. A III, B I, C V, D II, E IV
Answer : D
| Column -I | Column -II |
|---|---|
| A. Bulliform cells | I. Initiation of lateral roots |
| B. Pericycle | II. Root |
| C. Endarch xylem | III. Grasses |
| D. Exarch xylem | IV. Dicot leaf |
| E. Bundle sheath cells | V. Stem |
A. A III, B V, C IV, D I, E II
B. A II, B V, C I, D III, E IV
C. A II, B IV, C I, D III, E V
D. A III, B I, C V, D II, E IV
Answer : D
21. In the given columns, column I contain structures of female reproductive system and column II contain its feature. Select the correct match.
A. A - (i), B - (ii), C - (iii), D - (iv)
B. A - (iii), B - (i), C - (ii), D - (iv)
C. A - (i), B - (iv), C - (iii), D - (ii)
D. A - (ii), B - (iv), C - (iii), D - (i)
Answer : A
| Column-I | Column-II |
|---|---|
| A. Lateral meristem | (i) Fascicular vascular cambium, interfascicular cambium and cork cambium. |
| B. Apical meristem | (ii) Produces dermal tissue, ground tissues and vascular tissue. |
| C. Bast fibres | (iii) Generally absent in primary phloem but found in secondary phloem. |
| D. Sap wood | (iv) Involved in the conduction of water and minerals from the root to leaf. |
A. A - (i), B - (ii), C - (iii), D - (iv)
B. A - (iii), B - (i), C - (ii), D - (iv)
C. A - (i), B - (iv), C - (iii), D - (ii)
D. A - (ii), B - (iv), C - (iii), D - (i)
Answer : A
22. A common structural feature of vessel elements and sieve tube elements are
A. pores on lateral walls.
B. presence of p-protein.
C. enucleate condition.
D. thick secondary walls.
Answer : C
A. pores on lateral walls.
B. presence of p-protein.
C. enucleate condition.
D. thick secondary walls.
Answer : C
23. Identify the types of simple tissue indicated by A, B, C and D and their function.
A. A Parenchyma, Photosynthesis, Storage and Secretion.
B. B Sclerenchyma Scleriods; Transport food material
C. C Collenchyma; Provides mechanical support to organs.
D. D Sclerenchyma Fibres; Provide Mechanical support to the growing parts of the plant such as young stem and petiole of a leaf.
Answer : A
A. A Parenchyma, Photosynthesis, Storage and Secretion.
B. B Sclerenchyma Scleriods; Transport food material
C. C Collenchyma; Provides mechanical support to organs.
D. D Sclerenchyma Fibres; Provide Mechanical support to the growing parts of the plant such as young stem and petiole of a leaf.
Answer : A
24. A narrow layer of thin walled cells found between phloem/ bark and wood of a dicot is
A. cork cambium
B. vascular cambium
C. endodermis
D. both (a) & (c)
Answer : B
A. cork cambium
B. vascular cambium
C. endodermis
D. both (a) & (c)
Answer : B
25. Match the names of the structures given in column-I with the functions given in column-II, choose the answer which gives the correct combination of the two columns :
A. A V, B III, C I, D IV
B. A I, B IV, C V, D III
C. A II, B IV, C I, D III
D. A IV, B I, C III, D V
Answer : D
| Column-I | Column-II |
|---|---|
| (Structure) | (Function) |
| A. Stomata | I. Protection of stem |
| B. Bark | II. Plant movement |
| C. Cambium | III. Secondary growth |
| D. Cuticle | IV. Transpiration |
| V. Prevent the loss of water | ... |
A. A V, B III, C I, D IV
B. A I, B IV, C V, D III
C. A II, B IV, C I, D III
D. A IV, B I, C III, D V
Answer : D
26. Why grafting is successful in dicots ?
A. In dicots vascular bundles are arranged in a ring.
B. Dicots have cambium for secondary growth.
C. In dicots vessels with elements are arranged end to end.
D. Cork cambium is present in dicots
Answer : B
A. In dicots vascular bundles are arranged in a ring.
B. Dicots have cambium for secondary growth.
C. In dicots vessels with elements are arranged end to end.
D. Cork cambium is present in dicots
Answer : B
27. Various functions like photosynthesis, storage, excretion performed by _____________.
A. sclerenchyma
B. parenchyma
C. collenchyma
D. aerenchyma
Answer : B
A. sclerenchyma
B. parenchyma
C. collenchyma
D. aerenchyma
Answer : B
28. In stems, the protoxylem lies towards the _____________ and the metaxylem lies towards the ____________ of the organ.
A. centre; periphery
B. periphery; centre
C. periphery; periphery
D. centre; centre
Answer : A
A. centre; periphery
B. periphery; centre
C. periphery; periphery
D. centre; centre
Answer : A
29. Trees at sea do not have annual rings because
A. soil is sandy.
B. there is climatic variation.
C. there is no marked climatic variation.
D. there is enough moisture in the atmosphere.
Answer : C
A. soil is sandy.
B. there is climatic variation.
C. there is no marked climatic variation.
D. there is enough moisture in the atmosphere.
Answer : C
30. Which one of the following statement is incorrect ?
A. Only (i)
B. Only (iv)
C. Only (iii)
D. Only (v)
Answer : D
- Epidermal cell has small amount of cytoplasm and a large vacuole.
- Waxy cuticle layer is absent in roots.
- Root hairs are unicellular, while stem hairs / trichomes are multicellular.
- Trichomes may be branched or unbranched, soft or stiff and prevent transpiration.
- Guard cells are dumbell shaped in dicots and beanshaped in monocots (e.g. grass).
A. Only (i)
B. Only (iv)
C. Only (iii)
D. Only (v)
Answer : D
31. Which of the following statemen(s) is/are not correct?
A. (iii) and (iv)
B. (i) and (ii)
C. (ii) and (iii)
D. (ii) and (iv)
Answer : A
- Cork cambium is also called phellogen.
- Cork is also called phellem.
- Secondary cortex is also called periderm.
- Cork cambium, cork and secondary cortex are collectively called phelloderm.
A. (iii) and (iv)
B. (i) and (ii)
C. (ii) and (iii)
D. (ii) and (iv)
Answer : A
32. Which of the following statements are correct ?
A. (i) and (iii)
B. (i) and (ii)
C. (iii) and (iv)
D. (i) and (iv)
Answer : B
- Xylem transports water and minerals.
- Gymnosperms lack sieve tubes and companion cells in phloem.
- The first formed primary xylem is called metaxylem.
- Phloem fibres (bast fibres) are made up of collenchymatous cells.
A. (i) and (iii)
B. (i) and (ii)
C. (iii) and (iv)
D. (i) and (iv)
Answer : B
33. Which of the following are present in monocot root ?
A. conjoint, collateral, open polyarch vascular bundle.
B. exodermis, endarch, tetrarch closed vascular bundles.
C. suberized exodermis, casparian strip, passage cells, cambium.
D. suberized exodermis, polyarch xylem, pith.
Answer : D
A. conjoint, collateral, open polyarch vascular bundle.
B. exodermis, endarch, tetrarch closed vascular bundles.
C. suberized exodermis, casparian strip, passage cells, cambium.
D. suberized exodermis, polyarch xylem, pith.
Answer : D
34. Xylem functions as a conducting tissue for water and minerals from _________to the ______and__________.
A. roots, stems, leaves
B. stems, roots, leaves
C. leaves, stems, roots
D. leaves, stems, leaves
Answer : A
A. roots, stems, leaves
B. stems, roots, leaves
C. leaves, stems, roots
D. leaves, stems, leaves
Answer : A
35. The __________ occurs in layers below the epidermis in dicotyledonous plants.
A. parenchyma
B. sclerenchyma
C. collenchyma
D. aerenchyma
Answer : C
A. parenchyma
B. sclerenchyma
C. collenchyma
D. aerenchyma
Answer : C
36. A piece of wood having no vessels (trachea) must be belonged to
A. teak
B. mango
C. pine
D. palm
Answer : C
A. teak
B. mango
C. pine
D. palm
Answer : C
37. Bast fibres are made up of _____________cells.
A. sclerenchymatous
B. chlorenchymatous
C. parenchymatous
D. aerenchymatous
Answer : A
A. sclerenchymatous
B. chlorenchymatous
C. parenchymatous
D. aerenchymatous
Answer : A
38. Which of the following pair of match is not correct?
A. Pith - Large and well developed in monocotyledonous root.
B. Root hairs - Helps in preventing water loss due to transpiration
C. Sieve tube elements - Its functions are controlled by the nucleus of companion cells.
D. Stomatal apparatus - Consists of stomatal aperture, guard cells and surrounding subsidiary cells
Answer : A
A. Pith - Large and well developed in monocotyledonous root.
B. Root hairs - Helps in preventing water loss due to transpiration
C. Sieve tube elements - Its functions are controlled by the nucleus of companion cells.
D. Stomatal apparatus - Consists of stomatal aperture, guard cells and surrounding subsidiary cells
Answer : A
39. T.S. of dicot leaf passing through the midrib is given below. Certain parts have been marked by alphabets (A to H). Choose the option showing their correct labelling.
A. A Epidermis, B Spongy mesophyll, C Palisade mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem
B. A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Sub-stomatal cavity, E Stoma, F Phloem, G Xylem, H Bundle sheath
C. A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Epidermis, G Xylem, H Phloem
D. A Epidermis, C Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem
Answer : B
A. A Epidermis, B Spongy mesophyll, C Palisade mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem
B. A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Sub-stomatal cavity, E Stoma, F Phloem, G Xylem, H Bundle sheath
C. A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Epidermis, G Xylem, H Phloem
D. A Epidermis, C Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem
Answer : B
40. Apical, intercalary and lateral meristems are differentiated on the basis of
A. origin
B. function
C. position
D. development
Answer : C
A. origin
B. function
C. position
D. development
Answer : C
41. Tissues are classified into two main groups, namely meristematic and permanent tissues on the basis of
A. whether the cells being able to divide or not.
B. position of the cells.
C. whether they are living or dead.
D. none of the above
Answer : A
A. whether the cells being able to divide or not.
B. position of the cells.
C. whether they are living or dead.
D. none of the above
Answer : A
42. Which type of plant tissue is being described by the given statements?
A. Parenchyma
B. Sclerenchyma
C. Collenchyma
D. Chlorenchyma
Answer : B
- It consists of long, narrow cells with thick and lignified cell walls having a few or numerous pits.
- They are dead and without protoplasts.
- On the basis of variation in form, structure, origin and development, it may be either fibres or sclereids.
- It provides mechanical support to organs.
A. Parenchyma
B. Sclerenchyma
C. Collenchyma
D. Chlorenchyma
Answer : B
43. Which of following helps bamboo and grasses to elongate ?
A. Apical meristems
B. Lateral meristems
C. Secondary meristems
D. Intercalary meristems
Answer : D
A. Apical meristems
B. Lateral meristems
C. Secondary meristems
D. Intercalary meristems
Answer : D
44. The given figures are types of elements (A and B) which constitute one type of complex tissue (c) of a plant . Identify A, B and C.
A. A Tracheid, B Vessel, C Xylem
B. A Vessel, B Tracheild, C Phloem
C. A Fibre, B Tracheid, C Bark
D. A Fibre, B Sclereid, C Casparian strips
Answer : A
A. A Tracheid, B Vessel, C Xylem
B. A Vessel, B Tracheild, C Phloem
C. A Fibre, B Tracheid, C Bark
D. A Fibre, B Sclereid, C Casparian strips
Answer : A
45. Which of the following process helps the trichomes in preventing water loss?
A. Where companion cells helps in maintaining the pressure gradient in the sieve tubes.
B. Where plants absorb water through the roots and then give off water vapor through pores in their leaves.
C. Where activity of cork cambium builds pressure on the remaining layers peripheral to phellogen and ultimately these layers dies and slough off.
D. None of the above
Answer : B
A. Where companion cells helps in maintaining the pressure gradient in the sieve tubes.
B. Where plants absorb water through the roots and then give off water vapor through pores in their leaves.
C. Where activity of cork cambium builds pressure on the remaining layers peripheral to phellogen and ultimately these layers dies and slough off.
D. None of the above
Answer : B
46. Read the following statements and answer the question.
Which plant anatomy is being described by the above statements?
A. Dicotyledonous root
B. Monocotyledonous root
C. Dicotyledonous stem
D. Monocotyledonous stem
Answer : D
- It has a sclerenchymatous hypodermis, a large number of scattered vascular bundles and a large parenchymatous ground tissue.
- Vascular bundles are conjoint and closed.
- Peripheral vascular bundles are generally smaller than the centrally located ones.
- Phloem parenchyma is absent, and water- containing cavities are present within the vascular bundles.
Which plant anatomy is being described by the above statements?
A. Dicotyledonous root
B. Monocotyledonous root
C. Dicotyledonous stem
D. Monocotyledonous stem
Answer : D
47. When we peel the skin of a potato tuber, we remove
A. periderm
B. epidermis
C. cuticle
D. leaves
Answer : A
A. periderm
B. epidermis
C. cuticle
D. leaves
Answer : A
48. The apical meristem of the root is present
A. in all the roots.
B. only in radicals.
C. only in tap roots.
D. only in adventitious roots.
Answer : A
A. in all the roots.
B. only in radicals.
C. only in tap roots.
D. only in adventitious roots.
Answer : A
49. Which of the following figure is a type of permanent tissue having many different types of cell?
A.
B.
C.
D.
Answer : C
A.
B.
C.
D.
Answer : C
50. The given figure shows apical meristem of root apex with few part marked as A, B and C. Identify the correct labelling of A, B and C.
A. A Vascular structure, B Protoderm, C Root cap
B. A Cortex, B Endodermis, C Root cap
C. A Cortex, B Protoderm, C Root cap
D. A Tunica, B Protoderm, C Root cap
Answer : C
A. A Vascular structure, B Protoderm, C Root cap
B. A Cortex, B Endodermis, C Root cap
C. A Cortex, B Protoderm, C Root cap
D. A Tunica, B Protoderm, C Root cap
Answer : C
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