CBSE Class 11 Biology Morphology of Flowering Plants MCQs Set C

Question: Inflorescence is racemose in
a) brinjal
b) tulip
c) Aloe
d) soybean.
Answer: d

Question: Placentation in which ovules develop on the inner wall of the ovary or in peripheral part, is D
a) free central
b) basal
c) axile
d) parietal.
Answer: d

Question: Read the following statements.
a) Gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level.
b) Ovary is half-inferior.
c) Examples are plum, rose and peach.
Answer: b

Question: Most reduced form of stem is found in
a) bulb
b) rhizome
c) tree
d) stem
Answer: a

Question: Free central placentation is found in
a) Dianthus
b) Argemone
c) Brassica
d) Citrus.
Answer: a

Question: The standard petal of a papilionaceous corolla is also called
a) vexillum
b) corona
c) carina
d) pappus.
Answer: a

Question: Among China rose, mustard, brinjal, potato, guava,cucumber, onion and tulip, how many plants have superior ovary?
a) Three
b) Four
c) Five
d) Six
Answer: d

Question: Clove is
a) flower bud
b) axillary bud
c) thalamus
d) ovule
Answer: a

Question: The edible part of cauliflower is
a) inflorescence
b) leaf
c) flower
d) stem
Answer: a

Question: In which family (9) + 1 androecium condition is found ?
a) Malvaceae
b) Papilionaceae
c) Solanaceae
d) Poaceae
Answer: b

Question: In moss capsule, the number of peristome whorls are
a) 1
b) 2
c) 3
d) 4
Answer: b

Question: Which of following type of anther is found in Malvaceae?
a) Monothecous
b) Dithecous
c) Polythecous
d) Without thecous
Answer: a

Question: In Opuntia, spines are modification of
a) stem
b) root
c) leaf
d) flower
Answer: c

Question: Pollinia are found in
a) wheat
b) madar
c) mango
d) banana
Answer: b

Question: Potato and sweet potato
a) have edible parts which are homologous organs.
b) have edible parts which are analogous organs.
c) have been introduced in India from the same place.
d) are two species of the same genus.
Answer: b

Question: The sugarcane plant has
a) dumb-bell shaped guard cells
b) pentamerous flowers
c) reticulate venation
d) capsular fruits
Answer: a

Question: The family containing mustard and its main characters are
a) Brassicaceae – Tetramerous flowers, six stamens, bicarpellary gynoecium, siliqua type fruit
b) Brassicaceae – Pentamerous flowers, many stamens, pentacarpellary gynoecium, capsule type fruit
c) Solanaceae – Pentamerous flowers, five stamens, bicarpellary gynoecium, berry type fruit
d) Poaceae – Trimerous flowers, three stamens, monocarpellary gynoecium, caryopsis type of fruit
Answer: a

Question: Which of the following are not characteristic features of fabaceae?
a) Tap root system, compound leaves and raceme inflorescence.
b) Flowers actinomorphic, twisted aestivation and gamopetalous.
c) Stamens 10, introrse, basifixed, dithecous.
d) Monocarpellary, ovary superior and bent stigma.
Answer: b

Question: Composite fruit develops from
a) single ovary
b) inflorescence
c) apocarpous ovary
d) pericarp
Answer: b

Question: Nodules with nitrogen fixing bacteria are found in
a) cotton
b) gram
c) mustard
d) wheat
Answer: b

Question: Velamen present in orchids help in
a) absorbing water from support
b) respiration
c) absorption of moisture from air
d) synthesizing food
Answer: c

Question: Leaves of dicotyledonous plants possess _________ venation, while _________ venation is the characteristic of most monocotyledons.
a) reticulate and parallel
b) parallel and reticulate
c) reticulate and perpendicular
d) obliquely and parallel
Answer: a

Question: Floral diagram fails to indicate
a) epiphylly and epipetaly
b) aestivation and placentation
c) position of ovary on the thalamus
d) cohesion of carpels and stamens
Answer: c

Question: A mature ligule, having a prominent basal portion, is called
a) glossopodium
b) rhizophore
c) trichome
d) None of the options
Answer: a

Question: Inflorescence of Ficus is
a) spike
b) hypanthodium
c) raceme
d) verticillaster
Answer: b

Question: Aggregate fruit develops from
a) syncarpous ovary
b) multicarpellary, syncarpous ovary
c) unilocular ovary
d) multicarpellary, apocarpous ovary
Answer: d

Question: Monocarpic plants flower
a) once
b) twice
c) many times
d) never
Answer: a

Question: The presence of cilia, an oral groove, and food vacuoles, and the absence of chloroplasts in a unicellular organism indicate that the organism carries on
a) sexual reproduction
b) autotrophic nutrition
c) extracellular digestion
d) heterotrophic nutrition
Answer: d

Question: Of the following, which instrument is most commonly used to observe the external features of a grasshopper’s abdomen?
a) Ultracentrifuge
b) Microdissection instrument
c) Dissecting microscope
d) Electron microscope
Answer: c

Question: In a bisexual flower, if androecium and gynoecium mature at different times, the phenomenon is known as a
a) dichogamy
b) herkogamy
c) heterogamy
d) monogamy
Answer: a

Question: In a cymose inflorescence the main axis
a) has unlimited growth
b) bears a solitary flower
c) has unlimited growth but lateral branches end in flowers
d) terminates in a flower.
Answer: d

Question: Cymose inflorescence is present in
a) Solanum
b) Sesbania
c) Trifolium
d) Brassica
Answer: a

Question: Prickles of rose are
a) Modified leaves
b) Modified stipules
c) Exogenous in origin
d) Endogenous in origin
Answer: c

Question: Which one of the following is correctly matched?
a) Onion – Bulb
b) Ginger – Sucker
c) Chlamydomonas – Conidia
d) Yeast – Zoospores
Answer: a

Question: If the anthers are fused together forming a tubular structure while the filaments remain free, the condition is found in which one of the following family?
a) Malvaceae
b) Cucurbitaceae
c) Solanaceae
d) Asteraceae
Answer: d

Question: Which condition of flowers is being described by the above statements ?
a) Hypogyny
b) Perigyny
c) Epigyny
d) None of the options
Answer: d

Question: Parachute type dispersal occurs in
a) tomato
b) mustard
c) pea
d) cotton
Answer: b

Question: Which of the following is a modified stem for the protection of plants from browsing animals?
a) Tendrils
b) Thorns
c) Rhizome
d) Tuber
Answer: b

Question: Seeds are adaptively important because
1. they maintain dormancy
2. they protect young plants during vulnerable stages
3. they store food for young plants, and facilitate dispersal
a) 1 and 3
b) 2 and 3
c) 1 and 2
d) All of the options
Answer: d