XamBaaz
Log in

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

Jump to the 6 solved questions

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 top scorers in CBSE & Maharashtra HSC Board exams, MHT-CET and NEET UG get right.

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 helps you stay accurate when time is short, just 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. Try the 6 sample questions below: tap an option to see the answer and a worked explanation. Sign in free to start practising.

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

6 solved questions from this chapter's difficulty levels, each with its answer and explanation. Tap an option to check yourself.

0 of 6 answered

  1. Q1 of 6Easy

    Tap root system is found in:

    Show answer

    Answer: 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. Q2 of 6Easy

    Female reproductive whorl of a flower:

    Show answer

    Answer: 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. Q3 of 6Medium

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

    Show answer

    Answer: 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.

  4. Q4 of 6Medium

    Reticulate venation is typical of:

    Show answer

    Answer: 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.

  5. Q5 of 6Hard

    Twisted aestivation is found in:

    Show answer

    Answer: 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.

  6. Q6 of 6Hard

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

    Show answer

    Answer: 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.

Morphology of Flowering Plants notes: key concepts (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 tip of a root, drawn upright with the tip at the bottom, its regions marked by brackets. At the very tip a thimble-like root cap protects it. Just behind lies the region of meristematic activity, of small, dividing cells. Above it is the region of elongation, where the cells lengthen. Above that is the region of maturation, where the cells mature and many fine root hairs grow out sideways to absorb water.
The stem
Arises from the plumule; bears nodes, internodes, buds, leaves and flowers. Modifications include tendrils, thorns, tubers (potato) and rhizomes.
Leaf & venation
A lateral outgrowth of the stem for photosynthesis, with base, petiole and lamina. Reticulate venation marks dicots, parallel venation monocots.
Phyllotaxy
The arrangement of leaves on a stem — alternate (China rose), opposite (Calotropis) or whorled (Alstonia) — organised to reduce mutual shading.
Inflorescence
The arrangement of flowers on the floral axis. Racemose: main axis grows and flowers open acropetally; cymose: axis ends in a flower, opening basipetally.
Two flowering axes with each flower numbered in the order it opens (1 first). Left, racemose: the main axis goes on growing, ending in a growing apex bud, and bears flowers laterally; the oldest flower, 1, is at the base and younger ones follow towards the top, so the flowers open acropetally (an arrow points up). Right, cymose: the main axis ends in a flower, the terminal flower 1, which is the oldest; younger flowers 2 and 3 are borne on branches lower down, so the flowers open basipetally (an arrow points down).
The flower
A modified shoot and the reproductive unit, with four whorls on the thalamus — calyx, corolla, androecium and gynoecium — borne on successive nodes.
Aestivation
The mode of arrangement of sepals or petals in the bud — valvate, twisted, imbricate or vexillary (pea) — a key floral-diagram and formula feature.
Four flower buds cut across, each showing five petals as curved bands. Valvate: the petals just meet at their margins without overlapping. Twisted: each petal overlaps the next one, always in the same direction, so one margin of every petal is outside and the other inside. Imbricate: the margins overlap with no fixed direction; one petal is wholly outside, one wholly inside and the rest are in between. Vexillary, as in pea: a large posterior standard overlaps the two lateral wings, which in turn overlap the two smallest anterior petals, the keel.
Placentation
The arrangement of ovules on the placenta inside the ovary — marginal, axile, parietal, free-central and basal are the main types.
Five ovaries showing where the ovules (green) are attached on the placenta (red). Marginal, in cross-section: one chamber, the ovules on a ridge along one margin. Axile: the ovary divided into chambers by partitions, the ovules attached to the central axis. Parietal: one chamber, the ovules on the inner ovary wall. Free central: no partitions, the ovules borne round a central column. Basal, in long section: a single ovule attached at the base of the one-chambered ovary.
Androecium & gynoecium
Androecium = the stamens (anther + filament), the male whorl; gynoecium = the carpels (stigma, style, ovary), the female whorl bearing ovules.
Fruit
The ripened ovary after fertilisation, made of a pericarp enclosing seeds. A true fruit forms from the ovary; a false fruit (apple) uses the thalamus.
Seed
The fertilised, mature ovule; dicot seeds have two cotyledons, monocot seeds one. It holds an embryo, a food store and a protective seed coat.
Floral formula
A symbolic summary of a flower using K (calyx), C (corolla), A (androecium) and G (gynoecium), with fusion, symmetry and ovary position marked.
Exam tips — free with sign-in.

Start this chapter free

You have 6 to try above. Sign in with Google (no card needed). You get 1 Easy + 1 Medium quiz on every chapter, free for good (up to 6 quizzes a day) — plus a free Hard quiz when you score 70%+ on a Medium quiz (1 per subject), and the exam tips.

This chapter has 90 questions (30 Easy · 30 Medium · 30 Hard), with timed scoring and instant feedback. The rest unlock with the ₹1,999/year plan.

Start with the questions above. The full quiz opens here after.

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, Leaf & venation, Phyllotaxy.

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 ₹1,999/year. One year from the day you pay. You stay in Class 11 till 31 March; on 1 April your account moves up to Class 12 and the rest of your year carries over. 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. 6 sample questions are on this page with answers: tap an option, or "Show answer", to see the correct option and a step-by-step 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, Leaf & venation, Phyllotaxy. This page shows 6 solved important MCQs with answers and explanations. Sign in to practise all 90 questions on the chapter as timed quizzes.

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.

Are there question answers and extra questions for Morphology of Flowering Plants (Class 11 Biology)?+

Yes. This page has 6 solved questions on Morphology of Flowering Plants, each with the correct answer and a short explanation. Sign in to practise all 90 questions on the chapter as timed quizzes.

More Class 11 Biology chapters

Class 11 — other subjects

← All Class 11 Biology chapters
🦅 One new exam question every day on Instagram — Follow @xambaaz