Please refer to Morphology of Flowering Plants Class 11 Biology Important Questions with solutions provided below. These questions and answers have been provided for Class 11 Biology based on the latest syllabus and examination guidelines issued by CBSE, NCERT, and KVS. Students should learn these problem solutions as it will help them to gain more marks in examinations. We have provided Important Questions for Class 11 Biology for all chapters in your book. These Board exam questions have been designed by expert teachers of Standard 11.
Class 11 Biology Important Questions Morphology of Flowering Plants
Question.Which of the following is correct?
(a) The leaf is a lateral, generally flattened structure on stem
(b) A typical leaf consists of three main parts (leaf base, petiole and lamina)
(c) Stipule is the lateral appendage of leaf base
Question. Leaf base is swollen to form pulvinusin
(a) Some leguminous plants
(b) Some crucifers
(c) Some monocots
(d) Some cycads
Question. Leaves are modified into tendrils in
Question. Arrangement of flowers on floral axis is called
Question. Racemose inflorescence is identified by
(a) Acropetal arrangement of flowers on peduncle
(b) Presence of sessile flowers
(c) Continuous growth of main axis
(d) (a) and (c)
Question. A flower is a
(a) A modified shoot
(b) The reproductive unit in angiosperms
(c) The reproductive unit of gymnosperms
(d) (a) and (b)
Question. Which of the following flowers is not actinomorphic(radially symmetry)?
Question. Which of the following is an incorrect match?
(a) Perigynous flower –Plum, rose and peach
(c) Epigynousflower Guava, cucumber, and ray florets of sunflower
Question. Tetradynamous(4 long stamens) condition is seen in
(d) China rose
Question. The fruit is a characteristic of
(a) Gymnosperms only
(d) Flowering plants only
Question. Parthenocarpic fruit is a
(a) Seeded fruit
(b) Seedless fruit
(c) Single seeded fruit
(d) Fruit of no use
(a) Always dry
(b) Always fleshy
(c) May be dry or fleshy
(d) Neither fleshy nor dry
Question. In mango and coconut, the fruit(drupe) develops from
(a) Monocarpellary superior ovaries and are one seed
(b) Monocarpellary superior ovaries and are many seeded
(c) Polycarpellary superior ovaries and are one seeded
(d) Polycarpellary superior ovaries and are many seeded
Question. In mango
(a) Mesocarpis edible
(b) Endocarp is stony and hard
(c) Both (a) and (b)
(d) Endocarp is edible
Question. One cotyledon is found in
(a) Wheat and maize
(b) Gram and pea
(c) Bean and gram
(d) Ground nut and pea
Question. Roots developing from plant parts other than radicleare
Question. Root formed from prolongation of radicle is
(a) Primary root
(b) Secondary root
(c) Tertiary root
(d) Seminal root
Question. Root is distinguishable from stem in
(a) Having a root cap
(b) Having root hairs
(c) Absence of nodes and internodes
(d) All of the above
Question. Root hairs develop from
(a) Region of maturation
(b) Zone of elongation
(c) Meristematic region
(d) Region of mature cells
Question. Root is meant for
(a) The fixation of plant
(b) absorption of water
(c) storage of food
(d) all of the above
Question. Stilt roots are reported from
(c) Mango, Ginger
Question. A few millimeters above the root cap is the region of
(c) Meristematic activity
(d) Root hairs
Question. One of the following is not a root vegetable
(a) Sweet potato
Question. The stem develops from
Question. Thorn of citrus and Bougainvillea is modified
Question. The primary roots and its branches constitute the
(a) fibrous root system.
(b) tap root system.
(c) adventitious root system.
(d) all of the above
Question. Roots develop from parts of the plant other than radicle are called
(a) tap roots
(b) fibrous roots
(c) adventitious roots
(d) nodular roots
Question. The part of the root which is most active in water absorption is called
(a) root cap
(b) maturation zone
(c) meristematic zone
(d) zone of elongation
Question. Prop roots of banyan tree are meant for
(b) absorption of water from soil.
(c) providing support to big tree.
(d) all of the above.
Question. Pneumatophores are found in
(a) the vegetation which is found in marshy and saline lake.
(b) the vegetation which is found in saline soil.
(c) xerophytic condition.
(d) hydrophytic condition.
Question. Root differs from stem in having
(a) nodes and internodes
(b) axillary buds
(c) multicellular hairs
(d) unicellular hairs
Question. The regions of the stem where leaves are borne are called ____________ while ____________ are the portions between two ____________.
(a) nodes, nodes and internodes
(b) nodes, internodes and nodes
(c) internodes, nodes and nodes
(d) internodes, internodes and nodes
Question. Stem tendrils are found in
(d) all of these
Question. A branch in which each node bearing a rossette of leaves and a tuft of roots is found in aquatic plants like _________ and _________.
(a) Hydrilla and Pistia
(b) Eichhornia and Hydrilla
(c) Pistia and Eichhornia
(d) Pistia and Vallisneria
Question. Which of the following is the green expanded part of leaf with vein and veinlets?
Question. Which of the following is an example of pinnately compound leaf ?
Question. Alternate type of phyllotaxy is found in
(a) china rose
(d) all of these
Question. The flower is the reproductive unit in the ___________ meant for ___________ reproduction.
(a) angiosperms and sexual
(b) gymnosperms and sexual
(c) algae and asexual
(d) pteridophytes and asexual
Question. When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is known as
Question. Pollen grains are produced within the _________of stamen.
Question. During the post-fertilization period, the ovules develop into ___A____ and the ovary matures into a ___B ____.
(a) A – seeds; B – fruit
(b) A – fruit; B – seeds
(c) A – flower; B – seed
(d) A – seeds; B – flower
Question. Cotyledons and testa respectively are edible parts in which of the following plant group?
(a) walnut and tamarind
(b) cashew nut and litchi
(c) french bean and coconut
(d) groundnut and pomegranate
Question. Botanical name of Cauliflower is
(a) Brassica oleracea var. capitata
(b) Brassica campesteris
(c) Brassica oleracea var. botrytis
(d) Brassica oleracea var. gemmifera
Statement Type Questions
Question. Which one of the following statements is correct?
(a) Bulb of Allium cepa is a modified stem.
(b) Cloves of Allium sativum are fleshy scale leaves.
(c) Corm of Colocasia is a modified root.
(d) Tendril in Vitis vinifera is a modified axillary bud.
Question. Which of the following statement(s) is/are correct about calyx?
(a) Calyx is the outermost whorl of the flower and are called sepals.
(b) Sepals are green, leaf like structure and protect the flower in the bud stage.
(c) The calyx may be gamosepalous (sepals free) or polysepalous (sepals united).
(d) Both (a) and (b)
Question. Which one of the following are not true for parietal placentation?
(a) Ovules are borne on central axis.
(b) Ovary is one-chambered but it becomes twochambered due to the formation of false septum.
(c) Examples are mustard and Argemone.
(d) Both (b) and (c)
Question. Study the following statements and select the correct option
(i) Buds are present in the axil of leaflets of the compound leaf.
(ii) Pulvinus leaf-base is present in some leguminous plants.
(iii) In Alstonia, the petioles expand, become green and synthesize food.
(iv) Opposite phyllotaxy is seen in guava.
(a) (ii) and (iv) are correct but (i) and (iii) are incorrect.
(b) (i) and (iii) are correct but (ii) and (iv) are incorrect.
(c) (i) and (iv) are correct but (ii) and (iii) are incorrect.
(d) (ii), (iii) and (iv) are correct but (i) is incorrect.
Question. Consider the following statements regarding the root system of angiosperms and choose the correct option given below.
(i) In monocots, the fibrous root system arises from the base of the stem.
(ii) The region of elongation is called the root hair region.
(iii) In sweet potato, the adventitious roots get swollen and store food.
(iv) The stems of maize and sugarcane have supporting roots called prop roots.
(a) (i) and (ii) are correct but (iii) and (iv) are wrong.
(b) (ii) and (iii) are correct but (i) and (iv) are wrong.
(c) (ii) and (iv) are correct but (i) and (iii) are wrong.
(d) (i) and (iii) are correct but (ii) and (iv) are wrong.
Question. Which of the following statements are correct about the leaf?
(i) Leaf is a lateral, generally flattened structure borne on the stem.
(ii) It develops at the node and bears a bud in its axil.
(iii) Leaves originate from root apical meristems and arranged in an acropetal order.
(iv) They are the most important vegetative organs for reproduction.
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i), (ii) and (iv)
(d) all of these
Question. Read the following statements and answer the question.
(i) It is the pattern of arrangement of leaves on the stem or branch.
(ii) It is usually of three types – alternate, opposite and whorled.
(iii) It is meant for getting maximum amount of light.
Which condition of plant is being described by the above statements?
Question. Which of the following statement(s) is /are correct?
(i) Many plants belonging to the family fabaceae are good ornamentals (Tulip, Gloriosa), source of medicine (Aloe) and vegetables (Asparagus).
(ii) The plumule and radicle are enclosed in sheaths which are called coleorhiza and coleoptile respectively.
(iii) A flower having either stamens or carpels is unisexual.
(iv) Basal, alternate, linear, exstipulate with parallel venation types of leaves is found in the family
(a) Only (i)
(b) Both (i) and (ii)
(c) Both (iii) and (iv)
(d) All of these
Assertion/Reason Type Questions
In the following questions, a statement of Assertion is followed by a statement of Reason.
(a) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
(b) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
(c) If Assertion is true but Reason is false.
(d) If both Assertion and Reason are false.
Question. Assertion : A simple leaf has undivided lamina.
Reason : Leaves showing pinnate and palmate venations have various type of incisions.
Question. Assertion : Many plants are propagated vegetatively even though they bear seeds.
Reason : Potatoes multiply by tubers, apple by cutting etc.
Question. Assertion : In fabaceae family monocarpellary, unilocular ovary is present.
Reason : In fabaceae, placentation is parietal.
Matching Type Questions
Question. Match column-I containing types of aestivation with their examples given in column-II and choose the correct option.
|Column – I|
(Type of aestivation)
|A. Valvate||I. Cotton|
|B. Twisted||II. Calotropis|
|C. Imbricate||III. Bean|
|D. Vexillary||IV. Gulmohar|
(a) A – I; B – II; C – IV; D – III
(b) A – II; B – I; C – IV; D – III
(c) A – II; B – IV; C – I; D – III
(d) A – II; B – I; C – III; D – IV
Question. Match the following stem modifications given in column I with their examples given in column II and select the correct combination from the options given below.
|A. Underground stem||I. Euphorbia|
|B. Stem tendril||II. Opuntia|
|C. Stem thorns||III. Potato|
|D. Flattened stem||IV. Citrus|
|E. Fleshy cylindrical stem||V. Cucumber|
(a) A – I, B – II, C – III, D – V, E – IV
(b) A – II, B – III, C – IV, D – V, E – I
(c) A – III, B – IV, C – V, D – I, E – II
(d) A – III, B – V, C – IV, D – II, E – I
Question. Match column I with column II and choose the correct combination from the options given below.
(Position of floral parts on thalamus)
|A. Hypogynous||I. Ray florets of sunflower|
|B. Perigynous||II. Brinjal|
|C. Epigynous||III. Peach|
(a) A – II, B – I, C – III
(b) A – I, B – II, C – III
(c) A – III, B – II, C – I
(d) A – II, B – III, C – I
Question. Match column-I with column-II and choose the option which shows their correct combination.
|A. Gamosepalous||I. Flower of lily|
|B. Polysepalous||II. Sterile anther|
|C. Gamopetalous||III. Free petals|
|D. Polypetalous||IV. Free sepals|
|E. Epiphyllous||V. Fused petals|
|F. Staminode||VI. Fused sepals|
(a) A – IV, B – V, C – III, D – I, E – VI, F – II
(b) A – IV, B – III, C – V, D – I, E – II, F – VI
(c) A – VI, B – IV, C – III, D – V, E – I, F – II
(d) A – VI, B – IV, C – V, D – III, E – II, F – I
Question. Match column-I with column-II and choose the correct option.
(Members of Fabaceae)
|A. Gram, sem, moong,soyabean||I. Medicine|
|B. Soyabean,groundnut||II. Ornamental|
|C. Indigofera||III. Fodder|
|D. Sunhemp||IV. Fibres|
|E. Sesbania, Trifolium||V. Dye|
|F. Lupin, sweet potato||VI. Edible oil|
|G. Mulethi||VII. Pulses|
(a) A – I, B – II, C – III, D – IV, E – V, F – VI, G – VII
(b) A – VII, B – VI, C – V, D – IV, E – III, F – II, G – I
(c) A – II, B – IV, C – VI, D – I, E – III, F – V, G – VII
(d) A – I, B – III, C – V, D – VII, E – II, F – IV, G – VI
Question. Match the column I with column II and choose the correct option.
|Column I||Column II|
|A. Placentation||(i) Arrangement of flowers on the rachis|
|B. Aestivation||(ii) Modified shoot for sexual reproduction|
|C. Inflorescence||(iii)Arrangement of various whorls in the bud|
|D. Flower||(iv) Arrangement of ovules within an ovary|
A B C D
(a) (i) (ii) (iii) (iv)
(b) (iii) (i) (ii) (iv)
(c) (iii) (i) (iv) (ii)
(d) (iv) (iii) (i) (ii)