The Tissue Systems — NEET Biology MCQs with Solutions
Free NEET Biology The Tissue Systems MCQs with step-by-step solutions (60 questions). Part of Anatomy of Flowering Plants. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — The Tissue Systems · easy · theory
The epidermal tissue system includes the epidermis, stomata and:
A. Epidermal appendages (trichomes and root hairs) ✓ Correct
B. Vascular bundles
C. Pith
D. Cambium
Solution: The epidermal system covers the plant and includes stomata and appendages (root hairs, trichomes).
Q2 — The Tissue Systems · easy · theory
Stomata are guarded by two ______ that regulate transpiration and gas exchange:
A. Cortex cells
B. Guard cells ✓ Correct
C. Companion cells
D. Subsidiary cells only
Solution: Guard cells (bean-shaped in dicots, dumbbell in grasses) open/close the stomatal pore.
Q3 — The Tissue Systems · medium · theory
The ground tissue system comprises all tissues EXCEPT the:
A. Cortex
B. Pith
C. Mesophyll
D. Epidermal and vascular tissues ✓ Correct
Solution: Ground tissue = everything except epidermis and vascular bundles: cortex, pericycle, pith, mesophyll etc.
Q4 — The Tissue Systems · medium · theory
In a vascular bundle where xylem and phloem lie on the same radius with phloem outside xylem, the bundle is:
A. Bicollateral only
B. Conjoint and collateral ✓ Correct
C. Radial
D. Concentric
Solution: Conjoint collateral bundles (xylem inside, phloem outside) are typical of stems; radial bundles (alternate) occur in roots.
Q5 — The Tissue Systems · hard · theory
In roots, the xylem and phloem are arranged on ______ radii, making the bundle:
A. Different (alternate); radial ✓ Correct
B. Same; bicollateral
C. Concentric; amphivasal
D. The same; collateral
Solution: Root vascular bundles are radial — xylem and phloem lie on alternate radii, a key root-identifying feature.
Q6 — The Tissue Systems · hard · theory
A concentric vascular bundle in which phloem surrounds a central xylem is termed:
A. Amphicribral (leptocentric) ✓ Correct
B. Amphivasal (hadrocentric)
C. Radial
D. Collateral
Solution: Amphicribral = phloem around xylem (ferns); amphivasal = xylem around phloem (some monocots like Dracaena).
Q7 — The Tissue Systems · easy · numerical
Multicellular appendages that project from the stem epidermis, may be branched or unbranched, and help reduce water loss are called:
A. Stomata
B. Root hairs
C. Trichomes ✓ Correct
D. Lenticels
Solution: Stem epidermal outgrowths are multicellular trichomes; root hairs are unicellular elongations of the root epidermal cells. Both are part of the epidermal tissue system.
Q8 — The Tissue Systems · easy · numerical
Which of the following tissues does NOT belong to the ground tissue system?
A. Cortex
B. Phloem ✓ Correct
C. Pith
D. Pericycle
Solution: The ground tissue system is everything except the epidermis and vascular bundles — it includes cortex, pericycle, pith and medullary rays. Phloem is part of the vascular tissue system.
Q9 — The Tissue Systems · easy · numerical
In a vascular bundle the protoxylem lies toward the centre and the metaxylem toward the periphery. Such an arrangement of primary xylem is described as:
A. Endarch ✓ Correct
B. Amphivasal
C. Exarch
D. Radial
Solution: When protoxylem is on the inner side (toward the pith) and metaxylem outward, the xylem is endarch, as in stems. Exarch (protoxylem outward) is typical of roots.
Q10 — The Tissue Systems · easy · numerical
A vascular bundle in which the xylem is completely surrounded by phloem is a concentric bundle of the type called:
A. Radial
B. Amphivasal
C. Amphicribral ✓ Correct
D. Conjoint collateral
Solution: Amphicribral (phloem surrounding xylem) concentric bundles occur in many ferns; amphivasal bundles have xylem surrounding phloem (e.g. Dracaena).
Q11 — The Tissue Systems · medium · numerical
Match the epidermal structure with its correct feature: (i) Root hair (ii) Trichome (iii) Guard cell (iv) Cuticle — with (p) bean- or dumb-bell-shaped and encloses the stomatal pore (q) waxy layer absent on roots (r) unicellular outgrowth absorbing water (s) multicellular stem outgrowth. The correct match is:
A. (i)-r, (ii)-s, (iii)-q, (iv)-p
B. (i)-s, (ii)-r, (iii)-p, (iv)-q
C. (i)-r, (ii)-s, (iii)-p, (iv)-q ✓ Correct
D. (i)-p, (ii)-s, (iii)-r, (iv)-q
Solution: Root hairs are unicellular absorptive outgrowths, trichomes are multicellular stem hairs, guard cells enclose the stomatal pore, and the cuticle (a waxy layer) is absent on roots.
Q12 — The Tissue Systems · medium · numerical
Assertion (A): The vascular tissue system of a monocot stem is described as a closed type. Reason (R): The vascular bundles of monocots contain a strip of cambium between xylem and phloem. Choose the correct option:
A. A is true but R is false ✓ Correct
B. Both A and R are true but R is not the correct explanation of A
C. A is false but R is true
D. Both A and R are true and R is the correct explanation of A
Solution: Monocot bundles are closed precisely BECAUSE they lack cambium and cannot form secondary tissue; therefore A is true but R (claiming cambium is present) is false.
Q13 — The Tissue Systems · medium · numerical
In the roots the xylem and phloem occur on separate radii, alternating with each other. This kind of vascular bundle is termed:
A. Amphivasal
B. Concentric
C. Radial ✓ Correct
D. Conjoint
Solution: When xylem and phloem lie on different radii and alternate, the bundle is radial, as in roots. Conjoint bundles (stems) have xylem and phloem on the same radius.
Q14 — The Tissue Systems · medium · numerical
Which one of the following correctly pairs a concentric bundle type with an example plant?
A. Amphivasal — Dracaena ✓ Correct
B. Amphicribral — Dracaena
C. Amphivasal — fern
D. Conjoint collateral — fern
Solution: Amphivasal (xylem surrounding phloem) concentric bundles occur in monocots like Dracaena and Yucca; amphicribral bundles (phloem around xylem) are seen in many ferns.
Q15 — The Tissue Systems · medium · numerical
The epidermal tissue system forms the outermost protective covering of the whole plant body. Which of the following is NOT a part of it?
A. Endodermis ✓ Correct
B. Trichomes
C. Stomata
D. Root hairs
Solution: The epidermal system includes the epidermis with its cuticle, stomata, trichomes and root hairs. The endodermis is the innermost cortical layer and belongs to the ground tissue system.
Q16 — The Tissue Systems · medium · numerical
Consider these statements about vascular bundles: (i) an open bundle has cambium and can produce secondary tissues (ii) a closed bundle lacks cambium (iii) dicot stems have closed bundles (iv) monocot stems have open bundles. Which statements are correct?
A. (i), (ii) and (iii) only
B. All four statements
C. (i) and (ii) only ✓ Correct
D. (ii) and (iv) only
Solution: Open bundles (dicot stems) have cambium and undergo secondary growth; closed bundles (monocot stems) lack cambium. Statements (iii) and (iv) reverse this, so only (i) and (ii) are correct.
Q17 — The Tissue Systems · medium · theory
When xylem and phloem are on same radius, the vascular bundles are said to be
A. Radial
B. Concentric
C. Exarch
D. Conjoint ✓ Correct
Solution: When xylem and phloem lie on the same radius they form a conjoint vascular bundle.
Q18 — The Tissue Systems · medium · theory
A vascular bundle in which phloem is on both the sides of the xylem and separated from it by strips of cambium is said to be -
A. Collateral, open
B. Bicollateral, closed
C. Bicollateral, open ✓ Correct
D. Concentric
Solution: Phloem on both sides of xylem with cambium strips defines a bicollateral, open bundle (e.g. Cucurbita stem).
Q19 — The Tissue Systems · easy · theory
The basic difference between stem and root is that xylem in stem is -
A. Exarch
B. Endarch ✓ Correct
C. Polyarch
D. Mesarch
Solution: In stems the protoxylem lies towards the centre (endarch), whereas in roots it is exarch.
Q20 — The Tissue Systems · medium · theory
In which of the following order, an exarch xylem develops -
A. Irregular
B. Both centripetal & centrifugal
C. Centripetal ✓ Correct
D. Centrifugal
Solution: In exarch xylem the protoxylem is peripheral and metaxylem develops inward, i.e. centripetally.
Q21 — The Tissue Systems · easy · theory
The layers of cells lying between endodermis and vascular bundle is -
A. Pericycle ✓ Correct
B. Cortex
C. Pith
D. Exodermis
Solution: The pericycle lies just inside the endodermis, external to the vascular tissue.
Q22 — The Tissue Systems · medium · theory
Vascular tissues in flowering plants develop from -
A. Phellogen
B. Dermatogen
C. Periblem
D. Plerome ✓ Correct
Solution: According to the histogen theory, the plerome gives rise to the central vascular tissues and pith.
Q23 — The Tissue Systems · medium · theory
Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of -
A. Hydrophytes ✓ Correct
B. Epiphytes
C. Xerophytes
D. Mesophytes
Solution: Water plants (hydrophytes) show reduced vascular, mechanical and cuticular tissues since support and water conduction needs are low.
Q24 — The Tissue Systems · medium · theory
Ground tissue includes -
A. All tissues external to endodermis
B. All tissues except epidermis and vascular bundles ✓ Correct
C. Epidermis and cortex
D. All tissues internal to endodermis
Solution: The ground tissue system comprises all tissues other than the epidermal and vascular tissue systems.
Q25 — The Tissue Systems · easy · theory
Some vascular bundles are described as open because these -
A. Are not surrounded by pericycle
B. Are capable of producing secondary xylem and phloem. ✓ Correct
C. Are surrounded by pericycle but no endodermis
D. Possess conjunctive tissue between xylem and phloem.
Solution: Open bundles contain cambium between xylem and phloem, enabling secondary growth.
Q26 — The Tissue Systems · easy · theory
Closed vascular bundles lack -
A. Ground tissue
B. Conjunctive tissue
C. Pith
D. Cambium ✓ Correct
Solution: Closed bundles have no cambium, so they cannot undergo secondary growth.
Q27 — The Tissue Systems · easy · theory
Vascular bundles in monocotyledons are considered closed because -
A. A bundle sheath surrounds each bundle
B. Cambium is absent ✓ Correct
C. Xylem is surrounded all around by phloem
D. There are no vessels with perforations
Solution: Closed bundles lack cambium, which is why monocot bundles do not undergo secondary growth.
Q28 — The Tissue Systems · easy · theory
Specialised epidermal cells surrounding the guard cells are called -
A. Complementary cells
B. Subsidiary cells ✓ Correct
C. Bulliform cells
D. Lenticels
Solution: The epidermal cells specially arranged around the guard cells are called subsidiary or accessory cells.
Q29 — The Tissue Systems · medium · theory
Cortex is the region found between -
A. Epidermis and stele ✓ Correct
B. Pericycle and endodermis
C. Endodermis and pith
D. Endodermis and vascular bundle
Solution: The cortex lies between the epidermis and the stele (the central vascular cylinder).
Q30 — The Tissue Systems · easy · theory
Casparian strips occur in
A. Epidermis
B. Pericycle
C. Endodermis ✓ Correct
D. Cortex
Solution: Casparian strips are suberin/lignin bands on the radial and transverse walls of endodermal cells.