NEET Biology Anatomy of Flowering Plants MCQs Set 10

Biology Objective Questions and Answers: Anatomy Of Flowering Plants

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Download Anatomy Of Flowering Plants MCQs with Answers

View or download the dedicated Anatomy Of Flowering Plants MCQ resource below. Practicing these 50 objective questions regularly builds familiarity with standard exam patterns and helps secure higher marks in final Biology evaluations.

Multiple Choice Questions

Question 1: Growth in plants is largely restricted to specialised regions of active cell division, which are called
(a) Permanent
(b) Meristems
(c) Both (1) & (2)
(d) Xylem
Show Answer & Explanation

Answer: (b) Meristems

Explanation:
1. Growth is restricted to meristems, which are regions of active cell division.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 2: Permanent tissue, having all cells similar in structure and function is called
(a) Simple tissue
(b) Complex tissue
(c) Cambium
(d) Apical meristem
Show Answer & Explanation

Answer: (a) Simple tissue

Explanation:
1. A permanent tissue whose cells are all alike in structure and function is a simple tissue.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 3: Which of the following statement is incorrect for parenchyma?
(a) Cells are generally isodiametric
(b) Their cell walls are thin and made up of cellulose
(c) Th ey perfo rm various function s like photosynthesis, storage etc.
(d) Their cell walls are thick and lignified
Show Answer & Explanation

Answer: (d) Their cell walls are thick and lignified

Explanation:
1. Parenchyma walls are thin and made of cellulose; thick lignified walls belong to sclerenchyma.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 4: Sclereids are present in (A) Fruit wall of nuts (B) Pulp of guava, pear and sapota (C) Seed coat of legume
(a) Only A
(b) Only B
(c) Only C
(d) All A, B and C
Show Answer & Explanation

Answer: (d) All A, B and C

Explanation:
1. Sclereids occur in the hard fruit wall of nuts, the pulp of guava, pear and sapota, and the seed coat of legumes.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 5: Consider the following statements:
(a) Phloem fibres are made up of sclerenchymatous cells
(b) Phloem parenchyma are generally present in monocots
(c) The first formed primary phloem consists of narrow sieve tubes (protophloem) and the later formed phloem has bigger sieve tubes (metaphloem)
Which statement(s) is/are false?
(a) Only a
(b) Only b
(c) Only c
(d) a, b, and c
Show Answer & Explanation

Answer: (b) Only b

Explanation:
1. Phloem parenchyma is absent in most monocots, so only statement (b) is false.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 6: The outside of the epidermis is often covered with a waxy thick layer, called
(a) Hypodermis
(b) Cuticle
(c) Root hair
(d) Stem hair
Show Answer & Explanation

Answer: (b) Cuticle

Explanation:
1. The cuticle is the waxy layer on the outside of the epidermis.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 7: Parenchymatous cells with large intercellular spaces which occupy the central portion of the stem constitute
(a) Cortex
(b) Pith
(c) Hypodermis
(d) Epidermis
Show Answer & Explanation

Answer: (b) Pith

Explanation:
1. Large, thin walled parenchymatous cells with intercellular spaces in the centre form the pith.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 8: In dicot stem, the cells of cambium present between primary xylem and primary phloem is the
(a) Interfascicular cambium
(b) Vascular cambium
(c) Intra fascicular cambium
(d) Cork cambium
Show Answer & Explanation

Answer: (c) Intra fascicular cambium

Explanation:
1. Cambium between primary xylem and phloem inside a vascular bundle is intrafascicular cambium.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 9: By the activity of cambium ring, the cells cut off toward pith, mature into
(a) Secondary phloem
(b) Primary xylem
(c) Secondary xylem
(d) Primary phloem
Show Answer & Explanation

Answer: (c) Secondary xylem

Explanation:
1. Cells cut off by the cambium towards the pith differentiate into secondary xylem.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 10: During secondary growth in dicot stem, At some places, the cambium forms a narrow band of parenchyma, which passes through the secondary xylem and secondary phloem in radial directions. These are called :-
(a) Sap wood
(b) Heart wood
(c) Secondary medullary rays
(d) Primary medullary rays
Show Answer & Explanation

Answer: (c) Secondary medullary rays

Explanation:
1. Narrow radial bands of parenchyma through secondary xylem and phloem are secondary medullary rays.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 11: Bark that is formed early in the season is called
(a) Late bark
(b) Soft bark
(c) Hard bark
(d) Ring bark
Show Answer & Explanation

Answer: (b) Soft bark

Explanation:
1. Bark formed early in the season (spring) is soft bark.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 12: At certain regions, the phellogen cuts off closely arranged parenchymatous cells on the outer side instead of cork cells. These are called :-
(a) Phellem
(b) Periderm
(c) Bark
(d) Complimentary cells
Show Answer & Explanation

Answer: (d) Complimentary cells

Explanation:
1. Parenchymatous cells cut off outside by phellogen in loose groups are complementary cells.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 13: In dicot root, the vascular cambium is.
(a) Primary in origin
(b) Completely secondary in origin
(c) Both primary and secondary in origin
(d) Neither primary nor secondary in origin
Show Answer & Explanation

Answer: (b) Completely secondary in origin

Explanation:
1. In dicot roots the vascular cambium is wholly secondary in origin.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 14: Which of the following is primary meristem ?
(a) Apical meristem
(b) Intercalary meristem
(c) Lateral meristem
(d) both 1 and 2
Show Answer & Explanation

Answer: (d) both 1 and 2

Explanation:
1. Apical and intercalary meristems are primary meristems.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 15: Select odd one with respect to origin :-
(a) Interfascicular cambium
(b) Cork cambium
(c) Vascular cambium in dicot roots
(d) Intrafascicular cambium
Show Answer & Explanation

Answer: (d) Intrafascicular cambium

Explanation:
1. Intrafascicular cambium is primary in origin; the others are secondary.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 16: During the formation of primary plant body, specific regions of the apical meristem donot produce :-
(a) Dermal tissues
(b) Ground tissue
(c) Bark
(d) Vascular tissue
Show Answer & Explanation

Answer: (c) Bark

Explanation:
1. Bark is a secondary tissue; dermal, ground and vascular tissues are produced by the apical meristem.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 17: Cells of parenchyma are generally isodiametric but different in shape. Which of the following is not a shape of parenchyma :-
(a) Spherical
(b) Fibrous
(c) Oval
(d) Elongated
Show Answer & Explanation

Answer: (b) Fibrous

Explanation:
1. Parenchyma cells can be spherical, oval, round, polygonal or elongated, not fibrous.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 18: Regarding to collenchyma find out the incorrect statement
(a) It's cell walls show pecto-cellulosic unlignified thickenings
(b) Intercellular spaces are generally absent
(c) Provide mechanical support to petiole of a leaf
(d) Found in the form of a layer below epidermis in monocots
Show Answer & Explanation

Answer: (d) Found in the form of a layer below epidermis in monocots

Explanation:
1. Collenchyma is absent in monocots, so it is not found below the epidermis there.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 19: Match the following:
(a) Parenchyma: (i) Pericycle of root
(b) Collenchyma: (ii) Hypodermis of dicot stem
(c) Sclerenchymatous fibres: (iii) Pericycle of stem of Linum
(d) Sclerenchymatous sclereids: (iv) Pulp of pear
(a) i, ii, iii, iv
(b) iv, iii, ii, i
(c) i, ii, iv, iii
(d) i, iii, ii, iv
Show Answer & Explanation

Answer: (a) i, ii, iii, iv

Explanation:
1. Root pericycle is parenchymatous, dicot hypodermis is collenchymatous, stem pericycle of Linum is fibres and pear pulp has sclereids.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 20: Obliterated central lumen (cavity) is the characteristic feature of
(a) Tracheids
(b) Vessels
(c) Xylem fibres
(d) Xylem parenchyma
Show Answer & Explanation

Answer: (c) Xylem fibres

Explanation:
1. Xylem fibres have an obliterated central lumen because of thick lignified walls.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 21: Phloem fibres are generally present in :-
(a) Primary phloem
(b) Secondary phloem
(c) Protophloem
(d) Metaphloem
Show Answer & Explanation

Answer: (b) Secondary phloem

Explanation:
1. Phloem fibres are generally absent in primary phloem but present in secondary phloem.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 22: Classification of various tissue system is based on
(a) Structure
(b) Location
(c) Type of cells
(d) Both 1 & 2
Show Answer & Explanation

Answer: (d) Both 1 & 2

Explanation:
1. Tissue systems are classified on the basis of structure and location.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 23: The parenchymatous cells lies between xylem & phloem of root is known as
(a) Cambium
(b) Conjunctive tissue
(c) Pith
(d) Pericycle
Show Answer & Explanation

Answer: (b) Conjunctive tissue

Explanation:
1. Parenchyma between xylem and phloem of a root is conjunctive tissue.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 24: Regarding to stele which of the following statement is correct ?
(a) All the tissues lies inner to pericycle
(b) All the tissues lies inner to endodermis
(c) All the tissues lies inner to hypodermis
(d) All the tissues lies inner to epidermis
Show Answer & Explanation

Answer: (b) All the tissues lies inner to endodermis

Explanation:
1. The stele includes all tissues inner to the endodermis.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 25: Due to continuous growth of secondary xylem which of the following get crushed gradually
(a) Primary phloem
(b) Earlier formed secondary phloem
(c) Either 1 or 2
(d) both 1 and 2
Show Answer & Explanation

Answer: (d) both 1 and 2

Explanation:
1. Growth of secondary xylem crushes the primary phloem and the earlier formed secondary phloem.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 26: After secondary growth what is the actual future of primary xylem ?
(a) Converts into secondary xylem
(b) Remains more or less intact in or around the centre
(c) Converts into secondary phloem
(d) Gets crushed
Show Answer & Explanation

Answer: (b) Remains more or less intact in or around the centre

Explanation:
1. Primary xylem stays more or less intact in or around the centre.

Teacher's Note:
1. Secondary growth adds girth through vascular cambium and cork cambium.
2. Link spring wood with wide vessels and low density, and autumn wood with narrow vessels and high density.

Question 27: The activity of cambium is under the control of :-
(a) Phloem activity
(b) Physiological factors
(c) Environmental factors
(d) Both 2 and 3
Show Answer & Explanation

Answer: (d) Both 2 and 3

Explanation:
1. Cambial activity is controlled by physiological and environmental factors.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 28: Match the following (a) Early wood (i) Innermost mass of wood (b) Late wood (ii) Wood just inner to vascular cambium (c) Heart wood (iii) Low density (d) Sap wood (iv) High density a b c d
(a) iii iv i ii
(b) iii iv ii i
(c) iv iii ii i
(d) iv iii i ii
Show Answer & Explanation

Answer: (a) iii iv i ii

Explanation:
1. Early wood is of low density, late wood of high density, heart wood is the innermost mass and sap wood lies just inside the cambium.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

Question 29: During secondary growth in root, cambium ring arises from
(a) Tissues located below phloem bundles
(b) Portion of pericycle tissue above protoxylem
(c) Endodermis
(d) Both 1 and 2
Show Answer & Explanation

Answer: (d) Both 1 and 2

Explanation:
1. The root cambium arises from tissue below phloem bundles and from pericycle above protoxylem.

Teacher's Note:
1. Meristems are classified by position as apical, intercalary and lateral, and by origin as primary or secondary.
2. Remember which tissues are living (parenchyma, collenchyma) and which are dead at maturity (sclerenchyma, tracheids, vessels, fibres).

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