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Morphology of Flowering Plants — Class 11 MCQs with Answers

Class 11 CBSE Biology · Chapter 5

90 practice questions · 30 Easy · 30 Medium · 30 Hard · Updated

Practise the most important Class 11 CBSE Biology questions from Chapter 5, "Morphology of Flowering Plants". You get 9 timed quizzes made from 90 NCERT-based MCQs, with answers and explanations. The questions are split into 30 Easy, 30 Medium and 30 Hard. Warm up on the basics, then move on to the exam-level questions that set top scorers in CBSE & Maharashtra HSC Board exams, MHT-CET and NEET UG apart.

To score well in "Morphology of Flowering Plants", focus on diagrams, key terms and knowing NCERT line by line. Each MCQ here is timed and uses exam-style marking (+4 correct, −1 wrong, 0 skipped). This trains you to stay accurate under time pressure, as real papers need. Every question has a short explanation, so a wrong answer becomes a quick lesson. It is the fastest way to fix gaps before a test.

Use this chapter for focused revision. Start with the Easy set to check your basics on Morphology of Flowering Plants, then move to Medium and Hard to practise applying them. Your accuracy, streaks and XP save automatically. This chapter also adds to your overall Class 11 Biology mastery score. 14 sample questions are solved in full below, with the answer and a worked explanation. Sign in free to start practising.

Key concepts: Morphology of Flowering Plants (Class 11 Biology)

Morphology describes the external form of a flowering plant and the vocabulary used to name its parts. From root and shoot systems through leaf venation, inflorescence types and the four floral whorls, it ends with the fruit, seed and the shorthand floral formula that captures a flower's whole architecture.

Root systems
Dicots have a persistent tap root from the radicle; monocots a fibrous root system; adventitious roots arise from parts other than the radicle.
Root modifications
Roots may store food (carrot, turnip), give support (prop roots of banyan, stilt roots of maize) or breathe (pneumatophores of Rhizophora).
Regions of the root
From tip: root cap, region of meristematic activity, region of elongation and region of maturation bearing root hairs for water absorption.
The stem
Arises from the plumule; bears nodes, internodes, buds, leaves and flowers. Modifications include tendrils, thorns, tubers (potato) and rhizomes.
10 more key concepts, exam tips — free with sign-in.

Morphology of Flowering Plants — important questions & MCQs with answers (Class 11 Biology)

14 solved questions from this chapter's difficulty levels, each with its answer and explanation. The other 76 are timed and scored when you sign in.

  1. Q1Easy

    Tap root system is found in:

    A.Monocots
    B.Dicots✓ Correct
    C.Algae
    D.Bryophytes

    Answer: B. Dicots

    Explanation: Dicots keep the embryonic radicle, which grows into one main root with lateral branches — a taproot. Monocots' radicle is short-lived and replaced by fibrous adventitious roots instead.

  2. Q2Easy

    Female reproductive whorl of a flower:

    A.Gynoecium✓ Correct
    B.Androecium
    C.Calyx
    D.Corolla

    Answer: A. Gynoecium

    Explanation: Gynoecium (pistil/carpels) is the female whorl; androecium (stamens) is male, while calyx and corolla are the sterile outer whorls that protect and attract, not reproduce.

  3. Q3Easy

    A typical angiosperm plant body is divisible into:

    A.Only roots
    B.Underground root and aerial shoot✓ Correct
    C.Only shoots
    D.Thallus only

    Answer: B. Underground root and aerial shoot

    Explanation: An angiosperm plant body has two systems: the underground root system for anchorage and absorption, and the aerial shoot system (stem, leaves, flowers) for photosynthesis and reproduction.

  4. Q4Easy

    Tap root system develops from:

    A.Stem
    B.Radicle✓ Correct
    C.Leaves
    D.Plumule

    Answer: B. Radicle

    Explanation: The taproot system develops directly from the radicle of the germinating seed, persisting and branching into secondary and tertiary roots — unlike stem or leaves, which never form a taproot.

  5. Q5Easy

    Four whorls of a typical flower are:

    A.Sepal, leaf, root, stem
    B.Stamen, carpel, leaf, root
    C.Calyx, corolla, androecium, gynoecium✓ Correct
    D.Petal, leaf, stem, root

    Answer: C. Calyx, corolla, androecium, gynoecium

    Explanation: From outside in, a flower's four whorls are calyx (sepals), corolla (petals), androecium (stamens) and gynoecium (carpels); leaf, root and stem are vegetative parts, not floral whorls.

  6. Q6Easy

    Shoot system includes:

    A.Only seeds
    B.Roots only
    C.Only flowers
    D.Stem, leaves, flowers and fruits✓ Correct

    Answer: D. Stem, leaves, flowers and fruits

    Explanation: The shoot system is everything above ground — stem, branches, leaves, flowers and fruits — as opposed to the root system, which stays underground and lacks these structures.

  7. Q7Medium

    Reticulate venation is typical of:

    A.Ferns
    B.Monocot leaves
    C.Dicot leaves✓ Correct
    D.Gymnosperms

    Answer: C. Dicot leaves

    Explanation: Dicot leaves show reticulate (net-like) venation from branching veinlets; monocots show parallel venation — the actual home of the venation pattern the fern/gymnosperm distractors borrow.

  8. Q8Medium

    Marginal placentation is seen in:

    A.Pea family (Fabaceae)✓ Correct
    B.Lily
    C.Mustard
    D.Tomato

    Answer: A. Pea family (Fabaceae)

    Explanation: Pea has a single carpel with ovules attached along the ventral suture (margin) — marginal placentation. Tomato and lily instead show axile placentation in a multilocular ovary.

  9. Q9Medium

    Floral formula with five sepals, five fused petals, axile placentation is characteristic of:

    A.Poaceae
    B.Liliaceae
    C.Solanaceae✓ Correct
    D.Asteraceae

    Answer: C. Solanaceae

    Explanation: K(5) C(5) with a bilocular ovary and axile placentation is the Solanaceae formula (potato, tomato, brinjal); Asteraceae instead has basal placentation and sepals reduced to a pappus.

  10. Q10Medium

    Pneumatophores are seen in:

    A.Mustard
    B.Cactus
    C.Money plant
    D.Mangroves like *Rhizophora*✓ Correct

    Answer: D. Mangroves like *Rhizophora*

    Explanation: Pneumatophores are negatively geotropic roots growing upward out of waterlogged mud, with pores for gas exchange, seen in mangroves like Rhizophora — not in mustard, cactus or money plant.

  11. Q11Medium

    Flower with bract is called:

    A.Pedicellate
    B.Ebracteate
    C.Sessile
    D.Bracteate✓ Correct

    Answer: D. Bracteate

    Explanation: A bracteate flower has a bract (reduced leaf) at its base subtending the pedicel; an ebracteate flower, like mustard's, lacks this bract entirely — presence of the bract is the distinguishing feature.

  12. Q12Hard

    Potato is a modified:

    A.Stem (tuber)✓ Correct
    B.Root
    C.Leaf
    D.Flower

    Answer: A. Stem (tuber)

    Explanation: Potato is an underground stem tuber, identified by nodes bearing 'eyes' (axillary buds) and scale leaves — features a root, which never bears nodes, cannot show.

  13. Q13Hard

    Twisted aestivation is found in:

    A.Wheat
    B.Pea
    C.Sunflower
    D.Cotton/lady's finger✓ Correct

    Answer: D. Cotton/lady's finger

    Explanation: Twisted aestivation has each petal overlapping the next in one direction, forming a regular spiral, seen in Malvaceae (cotton, lady's finger) — distinct from wheat's valvate or pea's vexillary pattern.

  14. Q14Hard

    In Fabaceae floral formula, what does K(5) indicate?

    A.Five free sepals
    B.Five gamosepalous sepals✓ Correct
    C.Five free petals
    D.Five free stamens

    Answer: B. Five gamosepalous sepals

    Explanation: A number enclosed in brackets in a floral formula always signals fusion — so K(5) means five sepals fused into one gamosepalous calyx, not five separate (polysepalous) sepals.

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Morphology of Flowering Plants — FAQs

What are the key concepts in Class 11 Biology Morphology of Flowering Plants?+

Morphology describes the external form of a flowering plant and the vocabulary used to name its parts. From root and shoot systems through leaf venation, inflorescence types and the four floral whorls, it ends with the fruit, seed and the shorthand floral formula that captures a flower's whole architecture. Key ideas include Root systems, Root modifications, Regions of the root, The stem.

What does Class 11 Biology Chapter 5 (Morphology of Flowering Plants) cover on XamBaaz?+

It has 90 NCERT-based MCQs on "Morphology of Flowering Plants": 30 Easy, 30 Medium and 30 Hard. Together they make 9 timed quizzes, and you never get the same set twice. Every question has an instant explanation. They help you prepare for CBSE & Maharashtra HSC Board exams, MHT-CET and NEET UG.

Are these "Morphology of Flowering Plants" questions free to practise?+

Yes. Sign in with Google to practise "Morphology of Flowering Plants" free. Full unlimited access is ₹999/year on a launch offer until 1 December 2026. No chapter is charged separately.

How should I revise "Morphology of Flowering Plants" for the exam?+

Start with the Easy quiz to check your basics, then try Medium and Hard to practise applying them. There are 9 timed quizzes on this chapter, so you can come back for a fresh set instead of one you have seen. Read each explanation, retry the questions you miss, and track your accuracy until it stays high.

Are these "Morphology of Flowering Plants" MCQs available with answers?+

Yes. 14 sample questions are shown here in full, each with the correct option and a step-by-step "Why" explanation. Sign in free with Google to start practising, with instant scoring.

Is there negative marking in the "Morphology of Flowering Plants" quizzes?+

Yes. The timed quizzes use exam-style marking: +4 for a right answer, −1 for a wrong one and 0 for a skip, the same negative marking as NEET UG. MHT-CET and CBSE board papers have no negative marking. Our mocks for those are scored their way.

What are the important questions from Morphology of Flowering Plants (Class 11 Biology)?+

The questions that matter most test Root systems, Root modifications, Regions of the root, The stem. This page shows 14 solved important MCQs with answers and explanations; all 90 questions on the chapter are available as timed quizzes once you sign in.

Is there an online quiz for Morphology of Flowering Plants?+

Yes — Class 11 Biology Morphology of Flowering Plants has timed online quizzes at Easy, Medium and Hard levels, with instant scoring and a worked explanation on every question. The first quiz on the chapter is free.

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