Selected Qs - Anatomy of Flowering Plants - NCERT Exemplar Converted to MCQs

1. Where are the products of photosynthesis stored before being utilized in plants?
1. Parenchyma cells
2. Collenchyma cells
3. Sclerenchyma cells
4. Epidermal cells

2. When protoxylem lies next to phloem, the arrangement is called:
1. Endarch
2. Exarch
3. Centrarch
4. Mesarch

3. Which of the following prevents water loss in leaves but is absent in roots?
1. Root hairs
2. Cuticle
3. Cork
4. Epidermis

4. Bulliform cells in grass leaves:

1.	Help in photosynthesis
2.	Provide mechanical support
3.	Help leaves curl during water stress
4.	Aid in gaseous exchange

5. The cambial ring of stelar region of dicot stem is composed of:

1.	Cork cambium only
2.	Fascicular cambium only
3.	Interfascicular cambium only
4.	Both fascicular and interfascicular cambium

6. Which combination of features is characteristic of monocot roots?

1.	Polyarch xylem and small pith
2.	Diarch xylem and large pith
3.	Polyarch xylem and large pith
4.	Tetrarch xylem and no pith

7. Debarking a tree removes:

1.	Only cork cells
2.	Entire secondary phloem and cork cambium
3.	Only secondary xylem
4.	Both phloem and xylem

8. Radially arranged vascular bundles with exarch protoxylem are characteristic of:
1. Dicot stem
2. Monocot stem
3. Root
4. Leaf

9. The tissue responsible for transportation of photosynthates in plants is:
1. Parenchyma
2. Phloem parenchyma
3. Xylem parenchyma
4. Collenchyma

10. The correct sequence of bark layers from outside to inside is:

1.	Phellem - Phellogen - Phelloderm
2.	Phellogen - Phellem - Phelloderm
3.	Phelloderm - Phellogen - Phellem
4.	Phellem - Phelloderm - Phellogen

11. Which structures are responsible for the stone-like texture encountered while eating peaches or pears?
1. Sclereids
2. Cork cells
3. Fiber cells
4. Collenchyma cells

12. The cork tissue in plants is formed by:

1.	Vascular cambium
2.	Phellogen
3.	Interfascicular cambium
4.	Pericycle

13. Which of the following is NOT a characteristic difference between angiosperms and gymnosperms?

1.	Presence of vessels in angiosperms
2.	Absence of companion cells in gymnosperms
3.	Presence of sieve tubes in angiosperms
4.	Presence of annual rings in angiosperms

14. Guard cells differ from other epidermal cells in having:

1.	Thick outer wall and thin inner wall
2.	Thick inner wall and thin outer wall
3.	Presence of nucleus
4.	Presence of vacuole

15. The rapid growth of lawn grass (Cynodon dactylon) is due to:

1.	Apical meristem	2.	Lateral meristem
3.	Intercalary meristem	4.	Secondary meristem

16. Growth rings in trees are formed due to:

1.	Difference in spring wood and autumn wood formation
2.	Alternative production of xylem and phloem
3.	Seasonal changes in temperature
4.	Activity of cork cambium

17. Lenticels differ from stomata in:

1.	not found in leaves
2.	Having complementary cells instead of guard cells
3.	Being formed from phellogen
4.	All of the above

18. Which tissue type contains cells with uneven thickening of cellulose and pectin?
1. Sclerenchyma
2. Collenchyma
3. Parenchyma
4. Aerenchyma

19. The subsidiary cells in stomatal apparatus:

1.	Control opening and closing of stomata
2.	Support guard cells
3.	Produce chloroplasts
4.	Regulate transpiration directly

20. Palm trees show increase in girth despite being monocots due to:

1.	Secondary growth from vascular cambium
2.	Activity of cork cambium
3.	Division of ground tissue cells
4.	Primary growth from apical meristem

21. Which of the following is a characteristic feature of a dorsiventral leaf?

1.	Stomata equally distributed on both surfaces
2.	Undifferentiated mesophyll tissue
3.	Distinct palisade and spongy parenchyma
4.	Presence of bulliform cells

22. Which of the following best describes the arrangement of vascular bundles in a typical monocot stem?

1.	Ring-shaped arrangement with open bundles
2.	Scattered arrangement with closed bundles
3.	Radial arrangement with polyarch xylem
4.	Central arrangement with diarch xylem

23. Endarch protoxylem is characteristic of:
1. Dicot roots
2. Monocot roots
3. Dicot stems
4. Both b and c

24. The tissue responsible for leaf abscission is:
1. Sclerenchyma
2. Collenchyma
3. Abscission layer of parenchyma
4. Bundle sheath cells

25. Which anatomical feature helps in distinguishing a dorsiventral leaf from an isobilateral leaf?

1.	Presence of cuticle
2.	Distribution of stomata
3.	Differentiated mesophyll tissue
4.	Presence of vascular bundles

26. Plasmodesmata are:

1.	Cell wall thickenings
2.	Cytoplasmic connections between adjacent cells
3.	Spaces between cell walls
4.	Secondary wall deposits

27. The main difference between stem hair and root hair is:

1.	Stem hairs are dead while root hairs are living
2.	Stem hairs are multicellular while root hairs are unicellular
3.	Root hairs have cuticle while stem hairs don't
4.	Root hairs are branched while stem hairs are unbranched

28. Open vascular bundles differ from closed vascular bundles in:

1.	Presence of xylem	2.	Presence of phloem
3.	Presence of cambium	4.	Arrangement of tissues

29. The middle lamella is composed primarily of:
1. Cellulose
2. Lignin
3. Pectin
4. Suberin

30. In dicot stems, the medullary rays are:

1.	Horizontally arranged parenchyma cells
2.	Vertically arranged sclerenchyma cells
3.	Radially arranged parenchyma cells
4.	Concentrically arranged collenchyma cells

31. Bulliform cells in grass leaves:

1.	Provide mechanical support
2.	Help in photosynthesis
3.	Aid in leaf rolling during water stress
4.	Protect against pathogens

32. The starch sheath in dicot stems refers to:
1. Pericycle
2. Endodermis
3. Cortex
4. Pith

33. A student observes a tissue section where xylem and phloem alternate in a radial pattern, with the xylem showing an exarch condition. The endodermis shows Casparian strips, and a distinct pericycle is present. This anatomical arrangement is characteristic of:

1.	Secondary growth in dicot stem
2.	Primary structure of monocot stem
3.	Primary structure of dicot/monocot root
4.	Leaf midrib anatomy

34. In a transverse section, you observe more than 6 xylem bundles arranged radially with protoxylem elements facing outward and metaxylem toward the center. This polyarch condition with exarch xylem maturation is specifically characteristic of:
1. Stems of herbaceous dicots
2. Stems of woody gymnosperms
3. Roots of both monocots and dicots
4. Petioles of compound leaves

35. What part of the plant shows well developed pith?
1. Root
2. Stem
3. Leaf petiole
4. Flower

36. A wood anatomist examines two samples: Sample A shows vessels, fibers, and parenchyma; Sample B shows only tracheids and parenchyma. Based on evolutionary wood anatomy, these represent:

1.	Both are hardwoods from different angiosperm families
2.	Sample A is hardwood (angiosperm), Sample B is softwood (gymnosperm)
3.	Both are softwoods with different fiber content
4.	Sample A is juvenile wood, Sample B is mature wood

37. What is the commercial source of cork?
1. Cambium of dicot stems
2. Phellogen (cork cambium) of woody stems
3. Secondary xylem
4. Primary cortex

38. How is cork formed in plants?

1.	By activity of vascular cambium
2.	By activity of phellogen (cork cambium)
3.	By differentiation of epidermis
4.	By activity of apical meristem

39. Which epidermal cell modifications perform specialized functions in plants?
1. Guard cells for stomatal regulation
2. Root hairs for absorption
3. Trichomes for protection
4. All of the above

40. Which tissue is responsible for rapid growth in lawn grass requiring frequent mowing?
1. Apical meristem only
2. Intercalary meristem
3. Lateral meristem
4. Secondary meristem

41. In waterlogged conditions, root cells of terrestrial plants undergo anaerobic respiration, leading to:

1.	Enhanced nutrient uptake due to increased water availability
2.	Accumulation of toxic metabolites like ethanol and lactate causing cell death
3.	Rapid cell division in root apical meristem
4.	Increased production of growth hormones

42. Annual growth rings in temperate trees result from seasonal cambial activity. The differential appearance of earlywood and latewood is due to:

1.	Different species of fungi infecting the tree seasonally
2.	Variation in cell wall thickness and lumen size of xylem elements formed in different seasons
3.	Alternating activity of interfascicular and intrafascicular cambium
4.	Seasonal changes in phloem formation rate

43. What is the significance of growth rings?

1.	They indicate age of tree and climatic conditions
2.	They provide mechanical support only
3.	They store food materials
4.	They conduct water and minerals

44. What is the difference between lenticels and stomata?

1.	Lenticels are in roots, stomata in leaves
2.	Lenticels are in bark for gaseous exchange, stomata in leaves
3.	Lenticels are permanent, stomata are temporary
4.	Lenticels conduct water, stomata conduct gases

45. What is the function of sieve tube?
1. Transport of water and minerals
2. Transport of organic food materials
3. Mechanical support
4. Storage of food

46. What is the function of interfascicular cambium?

1.	Primary growth
2.	Formation of secondary xylem and phloem
3.	Protection of stem
4.	Storage of food

47. Guard cells exhibit unique anatomical features that enable stomatal function. Which combination of features distinguishes them from ordinary epidermal cells?

1.	Presence of chloroplasts, unevenly thickened walls, and ability to change shape due to turgor changes
2.	Larger size, thicker walls, and presence of starch grains
3.	Absence of nucleus, presence of crystals, and thick cuticle
4.	Connection to vascular bundles, absence of vacuoles, and lignified walls

48. What anatomical feature helps Pinus remain evergreen?

1.	Broad leaves with thin cuticle
2.	Needle-like leaves with thick cuticle and sunken stomata
3.	Large leaves with many stomata
4.	Waxy coating on stem

49. In how many possible planes can a plant cell be cut?
1. Two planes only
2. Three planes - transverse, radial longitudinal, and tangential longitudinal
3. Four planes
4. Infinite planes

50. What is the secondary wall?

1.	Second layer of cell wall deposited inside primary wall
2.	Wall formed during cell division
3.	Outer protective wall
4.	Wall between two cells

Fill OMR Sheet*

*If above link doesn't work, please go to test link from where you got the pdf and fill OMR from there

CLICK HERE to get FREE ACCESS for 2 days of ANY NEETprep course

Please be patient as the PDF generation may take up to a minute.

Fill OMR Sheet*