Plant Families (Fabaceae, Solanaceae, Liliaceae) — NEET Biology MCQs with Solutions
Free NEET Biology Plant Families (Fabaceae, Solanaceae, Liliaceae) MCQs with step-by-step solutions (40 questions). Part of Morphology of Flowering Plants. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
The Fabaceae (pea family) is characterised by a fruit that is a ______ and ______ aestivation:
A. Capsule; twisted
B. Berry; valvate
C. Drupe; imbricate
D. Legume; vexillary ✓ Correct
Solution: Fabaceae (papilionoideae) have a legume/pod and vexillary (papilionaceous) corolla aestivation.
Q2 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Onion, garlic and lily belong to which monocot family?
A. Liliaceae ✓ Correct
B. Solanaceae
C. Fabaceae
D. Poaceae
Solution: Liliaceae is a monocot family; its flowers are trimerous with a perianth of six tepals.
Q3 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
The androecium of Solanaceae is ______, attached to the petals:
A. Absent
B. Diadelphous
C. Epipetalous (5 stamens fused to the corolla) ✓ Correct
D. Free from petals
Solution: In Solanaceae the 5 stamens are epipetalous (attached to the corolla tube).
Q4 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
The gynoecium of Fabaceae is:
A. Bicarpellary, inferior
B. Tricarpellary, axile
C. Multicarpellary, free
D. Monocarpellary, superior, with marginal placentation ✓ Correct
Solution: Fabaceae have a single carpel (monocarpellary), superior ovary and marginal placentation (single locule).
Q5 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · hard · theory
A nitrogen-fixing symbiosis (root nodules with Rhizobium) is a hallmark of which family, giving it agricultural importance?
A. Fabaceae ✓ Correct
B. Solanaceae
C. Liliaceae
D. Brassicaceae
Solution: Many Fabaceae form root nodules with Rhizobium and enrich soil nitrogen; they also yield pulses, oils and dyes.
Q6 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · hard · theory
Which correctly matches family and a diagnostic feature?
A. Solanaceae — marginal placentation
B. Fabaceae — axile placentation
C. Liliaceae — legume fruit
D. Solanaceae — axile placentation, bicarpellary; Liliaceae — perianth of 6 tepals, axile placentation ✓ Correct
Solution: Solanaceae: bicarpellary, axile; Liliaceae: trimerous with 6 tepals, tricarpellary syncarpous, axile placentation.
Q7 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · numerical
The corolla of a pea (Fabaceae) flower has a large posterior petal, two lateral wings and two anterior fused petals forming a boat-shape. This characteristic corolla is called:
A. Tubular
B. Papilionaceous ✓ Correct
C. Rotate
D. Ligulate
Solution: The Fabaceae (papilionoid) corolla is papilionaceous — one standard (vexillum), two wings and two keel petals. Ligulate and tubular corollas are seen in Asteraceae.
Q8 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · numerical
In Liliaceae the calyx and corolla are not distinguishable and are together represented by a single term in the floral formula. These undifferentiated perianth members are called:
A. Tepals ✓ Correct
B. Bracts
C. Sepals
D. Glumes
Solution: In Liliaceae the perianth is undifferentiated into calyx and corolla, so its members are called tepals, written as P in the floral formula.
Q9 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · numerical
The androecium of a typical pea flower has ten stamens arranged as nine fused by their filaments into a bundle and one standing free. This condition is termed:
A. Polyadelphous
B. Diadelphous ✓ Correct
C. Syngenesious
D. Monadelphous
Solution: Diadelphous stamens occur in two bundles; in Fabaceae nine stamens unite and one is free (9)+1, a hallmark of the family.
Q10 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · numerical
A flower has five united petals, five epipetalous stamens, a bicarpellary syncarpous ovary that is superior with axile placentation, and its fruit is a berry or capsule. This description best fits which family?
A. Solanaceae ✓ Correct
B. Liliaceae
C. Brassicaceae
D. Fabaceae
Solution: The features — gamopetalous five-merous corolla, epipetalous stamens, bicarpellary superior ovary with axile placentation and a berry/capsule fruit — are diagnostic of Solanaceae (potato, tomato, brinjal).
Q11 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · numerical
Match the family with its diagnostic feature: (i) Fabaceae (ii) Solanaceae (iii) Liliaceae — with (p) trimerous flowers with six tepals and a trilocular ovary (q) marginal placentation in a monocarpellary ovary giving a legume (r) five-merous flowers with epipetalous stamens and axile placentation. The correct match is:
A. (i)-q, (ii)-r, (iii)-p ✓ Correct
B. (i)-r, (ii)-q, (iii)-p
C. (i)-p, (ii)-q, (iii)-r
D. (i)-q, (ii)-p, (iii)-r
Solution: Fabaceae has a monocarpellary ovary with marginal placentation forming a legume (q); Solanaceae is five-merous with epipetalous stamens and axile placentation (r); Liliaceae is trimerous with six tepals and a trilocular ovary (p).
Q12 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Petunia, Datura and Nicotiana belong to the family
A. Liliaceae
B. Solanaceae ✓ Correct
C. Fabaceae
D. Poaceae
Solution: Petunia, Datura and Nicotiana are all members of the family Solanaceae.
Q13 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Brinjal, tobacco, potato and tomato are alike because
A. All are vegetables
B. All belong to family Malvaceae
C. All belong to family Solanaceae ✓ Correct
D. Fruit of all has economic importance
Solution: Brinjal, tobacco, potato and tomato are all members of the family Solanaceae.
Q14 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
A bicarpellary ovary with an obliquely placed septum is seen in
A. Sesbania
B. Solanum ✓ Correct
C. Brassica
D. Aloe
Solution: Solanaceae (Solanum) has a bicarpellary, syncarpous ovary with the septum placed obliquely.
Q15 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
The keel is a characteristic feature of the flower of
A. Tulip
B. Tomato
C. Indigofera ✓ Correct
D. Aloe
Solution: Indigofera (Fabaceae) has a papilionaceous corolla whose two anterior fused petals form the keel.
Q16 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Roots associated with nitrogen-fixing bacteria (root nodules) are found in
A. Pea ✓ Correct
B. Turnip
C. Radish
D. Carrot
Solution: Pea, a legume (Fabaceae), forms root nodules with Rhizobium for nitrogen fixation.
Q17 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Inflorescence in Solanaceae is
A. Hypanthodium
B. Racemose
C. Verticillaster
D. Cymose ✓ Correct
Solution: Solanaceae typically bear cymose (often solitary/axillary cyme) inflorescences.
Q18 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Persistent calyx is characteristic of
A. Cruciferae (Mustard)
B. Papilionatae (Dalbergia)
C. Solanaceae (Solanum) ✓ Correct
D. Liliaceae (Allium)
Solution: In Solanaceae the calyx is persistent and remains attached to the fruit (e.g. brinjal, tomato).
Q19 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · hard · theory
From the list Indigofera, Lupin, Petunia, Aloe, Colchicum, Sesbania, Trifolium, Solanum, how many plants show zygomorphic flowers with vexillary aestivation?
A. 3
B. 4 ✓ Correct
C. 6
D. 5
Solution: Indigofera, Lupin, Sesbania and Trifolium are papilionaceous Fabaceae with zygomorphic flowers and vexillary aestivation — four plants.
Q20 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
Point out the correct floral formula of Cruciferae (Brassicaceae).
A. K2+2 C2+2 A2+4 G(2)
B. K5 C6 A3 G(2)
C. K4 C4 A2 G(2)
D. K2+2 C4 A2+4 G(2) ✓ Correct
Solution: Brassicaceae have 2+2 sepals, 4 petals, tetradynamous stamens (2+4) and a bicarpellary syncarpous ovary G(2).
Q21 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
The standard petal in Papilionatae is
A. Anterior and innermost
B. Anterior and outermost
C. Posterior and innermost
D. Posterior and outermost ✓ Correct
Solution: In vexillary aestivation the standard (posterior petal) is outermost and overlaps the two lateral wings.
Q22 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Diadelphous condition is common in
A. Caesalpinioideae
B. Cruciferae
C. Malvaceae
D. Papilionatae ✓ Correct
Solution: Papilionaceous legumes have diadelphous stamens (9 fused + 1 free).
Q23 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
What type of placentation is seen in sweet pea?
A. Basal
B. Free central
C. Marginal ✓ Correct
D. Axile
Solution: Fabaceae like sweet pea have a monocarpellary ovary with ovules on the ventral suture — marginal placentation.
Q24 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Replum is present in the ovary of the flower of
A. Mustard ✓ Correct
B. Sunflower
C. Lemon
D. Pea
Solution: The false septum (replum) dividing the ovary into two chambers is characteristic of Brassicaceae (mustard).
Q25 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
Pentamerous, actinomorphic flowers, a bicarpellary ovary with oblique septa, and a fruit that is a capsule or berry are characteristic features of
A. Asteraceae
B. Solanaceae ✓ Correct
C. Brassicaceae
D. Liliaceae
Solution: These are the defining features of the family Solanaceae.
Q26 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
Chillies and potato belong to the family
A. Solanaceae ✓ Correct
B. Gramineae
C. Cruciferae
D. Compositae
Solution: Chilli (Capsicum) and potato (Solanum tuberosum) are members of Solanaceae.
Q27 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · easy · theory
The placentation in a Cruciferae (Brassicaceae) plant is
A. Basal
B. Parietal ✓ Correct
C. Axile
D. Marginal
Solution: Brassicaceae have parietal placentation, made bilocular by a false septum (replum).
Q28 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · hard · theory
How many of the following are members of the family Fabaceae? Gram, belladonna, arhar, moong, potato, Indigofera, pea, tobacco, Sesbania.
A. Four
B. Five
C. Seven
D. Six ✓ Correct
Solution: Gram, arhar, moong, Indigofera, pea and Sesbania are Fabaceae (six); belladonna, potato and tobacco are Solanaceae.
Q29 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · medium · theory
The family containing mustard and its main characters are
A. Brassicaceae — tetramerous flowers, six stamens, bicarpellary gynoecium, siliqua fruit ✓ Correct
B. Solanaceae — pentamerous flowers, five stamens, bicarpellary gynoecium, berry fruit
C. Brassicaceae — pentamerous flowers, many stamens, pentacarpellary gynoecium, capsule fruit
D. Poaceae — trimerous flowers, three stamens, monocarpellary gynoecium, caryopsis fruit
Solution: Mustard belongs to Brassicaceae, with tetramerous flowers, six tetradynamous stamens, a bicarpellary ovary and a siliqua fruit.
Q30 — Plant Families (Fabaceae, Solanaceae, Liliaceae) · hard · theory
How many of the plants listed belong to a family whose flowers have six tepals and six epitepalous stamens? Colchicum, Aloe, gram, potato, Gloriosa, tomato, sweet pea, Asparagus, groundnut, tulip.
A. Two
B. Six
C. Five
D. Four ✓ Correct
Solution: Six tepals with epitepalous stamens describes Liliaceae; Aloe, Gloriosa, Asparagus and tulip qualify — four plants.