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NEET Biology MCQ
Neet Biology Morphology Of Flowering Plants Mcq
Quiz 25
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Q.1
Caryopsis is found in:
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a) Pea.
0%
b) Sunflower.
0%
c) Maize.
0%
d) Lily.
Explanation
Answer:(c)
Q.2
Match the following columns:
(a) Stem tendrils
(i) Pumpkins
(b) Thorns
(ii) Citrus
(c) Leaf tendrils
(iii) Cucumber
- - - -
(iv) Bougainvillea
- - - -
(v) Peas
- - - -
(vi) Grapevines
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a) (a) – (i), (ii), (vi); (b) – (iii), (iv); (c) – (v).
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b) (a) – (i), (iii), (vi); (b) – (ii), (iv); (c) – (v).
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c) (a) – (i), (v); (b) – (ii), (iii); (c) – (iv), (vi).
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d) (a) – (iii), (iv); (b) – (i), (ii), (vi); (c) – (v).
Explanation
Answer:(b)
Q.3
Out of 5 petals of a flower, two are completely internal; two completely external and remaining one is internal at one margin and external at other margin. Aestivation is:
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a) Twisted.
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b) Vexillary.
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c) Quincuncial.
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d) Valvate.
Explanation
Answer:(c)
Q.4
Which of the following is true?
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a) Umbel is a racemose inflorescence where all stalked flower aggregate on the flat receptacle.
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b) Raceme is a racemose inflorescence having main axis shortened & flower born acropetally.
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c) Spadix is a racemose inflorescence having pendulous spike with main axis much flattened.
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d) Spike is a racemose inflorescence having sessile flowers.
Explanation
Answer:(d)
Q.5
Match the following:
a. Storage;
Spine.
b. Support
Roots arising from node.
c. Protection
Potato.
d. Spread and vegetative propogules
Tendril.
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a) a =1 ; b = 2 ; c =2 ; d = 4
0%
b) a =3 ; b = 4 ; c =1 ; d =2
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c) a =2 ; b = 3 ; c =1 ; d = 4
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d) a =1 ; b = 3 ; c =2 ; d = 4
Explanation
Answer:(b)
Q.6
Identify the group of plants possessing stem tendrils:
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a) Citrus, Bougainvillea.
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b) Citrus, Euphorbia.
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c) Cucumber, pumpkin, watermelon.
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d) Potato, ginger.
Explanation
Answer:(c)
Q.7
Smallest region of the root is:
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a) Root cap
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b) Region of elongation.
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c) Region of meristematic activity.
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d) Region of maturation.
Explanation
Answer:(c)
Q.8
Which of the following is not associated with orchids?
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a) Clinging roots.
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b) Velamen roots.
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c) Non-endospermous seeds.
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d) Staminal corona.
Explanation
Answer:(d)
Q.9
From which point of root, root hairs develop ?
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a) Region of maturation
0%
b) Region of elongation
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c) Meristematic region
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d) Region of root cap
Explanation
Root hair cells are outgrowths at a tip of the plant's roots. They are found only in the zone of maturation, and not the zone of elongation, possibly because any root hairs that arise are sheared off as the root elongates and moves through the soil Answer:(a)
Q.10
Phyllotaxy refers to;
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a) Arrangement of leaves on stem
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b) Folding leaf in the bud
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c) (a) & (b) both
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d) None of the above
Explanation
Answer:(a)
Q.11
In which of the following angiosperm family, cruciform corolla is found:
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a) Malvaceae.
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b) Brassicaceae.
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c) Ranunculaceae.
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d) Solanaceae.
Explanation
Answer:(c)
Q.12
The X is small and situated in a groove at one end of the endosperm. It consists of one large and shield shaped cotyledon known as Y and a short axis with a plumule and a Z. Identify X, Y and Z.
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a) X - Scutellum, Y - Embryo, Z - Radicle
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b) X - Embryo, Y - Scutellum, Z - Radicle
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c) X - Scutellum, Y - Radicle, Z - Embryo
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d) X - Radicle, Y - Embryo, Z - Scutellum
Explanation
Answer:(b)
Q.13
Which of the following statement(s) is/are correct about venation? (i) The arrangement of veins and the veinlets in the lamina of leaf is called venation. (ii) Reticulate venation is the characteristic of monocots. (iii) When the veinlets form a network, the venation is termed as reticulate venation. (iv) When the veins run parallel to each other, within a lamina, the venation is termed as parallel venation.
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a) Only (i)
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b) Both (i) and (ii)
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c) (i), (iii) and (iv)
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d) All of these
Explanation
Answer:(c)
Q.14
The main purpose of phyllotaxy for the leaves is to provide sufficient_______.
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a) soil
0%
b) air
0%
c) water
0%
d) light
Explanation
Answer:(d)
Q.15
Syngenesious stamens are found in:
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a) Cotton.
0%
b) Sunflower.
0%
c) Grain.
0%
d) Lemon.
Explanation
Answer:(b)
Q.16
Aleurone layer is the:
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a) Outermost layer of the endosperm (2n).
0%
b) Innermost layer of the endosperm (2n).
0%
c) Outermost layer of the endosperm (3n).
0%
d) Innermost layer of the endosperm (3n).
Explanation
Answer:(c)
Q.17
A modified aerial stem which performs function of photosynthesis, but the modification is actually to reduce the rate of transpiration is:
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a) Cladode.
0%
b) Phylloclade.
0%
c) Phyllode.
0%
d) Both A and B.
Explanation
Answer:(b)
Q.18
If the 2n chromosome number of a plant is 48, the number of chromosomes in its Scutellum will be:
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a) 48
0%
b) 24
0%
c) 72
0%
d) 12
Explanation
Answer:(a)
Q.19
In which of the following plants, the margin of thalamus grows further upwards completely enclosing the ovary and getting fused in it and bears sepals, petals and stamens above the ovary?
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a) Coriander and plum.
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b) Peach and apple.
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c) Cucumber and guava.
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d) Sunflower and gulmohar.
Explanation
Answer:(c)
Q.20
Cladode is:
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a) Flattened green stem of unlimited growth.
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b) One internode long modified stem capable of photosynthesis.
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c) A perennial fleshy underground stem.
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d) A specialised reproductive shoot.
Explanation
Answer:(b)
Q.21
Ovule occurring along the ventral structure over a ridge in two rows in placentation:
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a) Axile.
0%
b) Parietal.
0%
c) Free central.
0%
d) Marginal.
Explanation
Answer:(d)
Q.22
The edible part in sorosis fruit is
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a) perianth + sepals
0%
b) perianth + placenta
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c) placenta only
0%
d) perianth only.
Explanation
Answer:(d)
Q.23
The length of different internodes in a culm of sugarcane is variable because of
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a) shoot apical meristem
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b) position of axillary buds
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c) size of leaf lamina at the node below each internode
0%
d) intercalary meristem
Explanation
Answer:(d)
Q.24
In guava and cucumber, the ovary is said to be:
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a) Superior.
0%
b) Inferior.
0%
c) Perigynous.
0%
d) Half inferior half superior.
Explanation
Answer:(b)
Q.25
The placenta forms a ridge along the ventral surface of the ovary, such placentation are called:
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a) Axile.
0%
b) Marginal.
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c) Parietal.
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d) Free central.
Explanation
Answer:(b)
Q.26
A single tricarpellary syncarpous ovary forms a female flower in which inflorescence:
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a) Hypanthodium.
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b) Verticillaster.
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c) Cyathium.
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d) Corymb.
Explanation
Answer:(c)
Q.27
Cotyledons and testa respectively are edible parts in which of the following group?
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a) walnut and tamarind
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b) cashew nut and litchi
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c) French bean and coconut
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d) groundnut and pomegranate
Explanation
Answer:(d)
Q.28
The root differs from stem in having
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a) nodes and internodes
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b) axillary buds
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c) multicellular hairs
0%
d) unicellular hairs
Explanation
Answer:(d)
Q.29
Vegetative propagation occurs through Bulbil in:
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a) Agave.
0%
b) Colacasia.
0%
c) Ginger.
0%
d) Vallisneria.
Explanation
Answer:(a)
Q.30
Match the following:
Column I
Column II
a. Cuscuta
Hygroscopic root
b. Rhizophora
Stilt root
c. Vanda
Haustorial root
d. Pandamus
Respiratory root
0%
a) a = 1 ; b = 3 ; c = 4 ; d = 2
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b) a = 3 ; b = 4 ; c = 1 ; d = 2
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c) a = 3 ; b = 1 ; c = 4 ; d = 2
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d) a = 2 ; b = 4 ; c = 1 ; d = 3
Explanation
Answer:(b)
Q.31
The petiole is modified into leaf like structure called as:
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a) Cladode.
0%
b) Cladophyll.
0%
c) Phyllode.
0%
d) Phylloclade.
Explanation
Answer:(c)
Q.32
Monadelphous condition of stamens is found in:
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a) Pea.
0%
b) China rose.
0%
c) Citrus.
0%
d) Mango.
Explanation
Answer:(b)
Q.33
Remains of nucellus in seeds is known as perisperm is _______ and found in ________.
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a) Diploid, black pepper.
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b) Haploid, castor.
0%
c) Haploid, coconut.
0%
d) Diploid, mango.
Explanation
Answer:(a)
Q.34
Read the following sentences carefully: (i) Most reduced stem modification occurs in bulb. (ii) During fruit formation, ovary wall is developed into Pericarp. (iii) Both China rose and Calotropis show opposite phyllotaxy. (iv) Pepo is fleshy indehiscent fruit found in Cucurbita. How many of the following are true:
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a) 3
0%
b) 4
0%
c) 2
0%
d) 1
Explanation
Answer:(a)
Q.35
Identify the type of root given in the figure, from the given options.
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a) A–Fusiform, radish; B–Napiform, turmeric; C–Tuberous, sweet potato.
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b) A–Conical, turnip; B–Nodulated, sweet potato; C–Tuberous, Curcuma amada.
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c) A–Conical, carrot; B–Tuberous, sweet potato; C–Fasciculated, Dahlia.
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d) A–Napiform, carrot; B–Nodulated, Tamarind; C–Tuberous, turmeric.
Explanation
Answer:(c)
Q.36
Following is not true of monocots
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a) most of the food of the seed is stored in endosperm
0%
b) have parallel veins in their leaves
0%
c) flower parts occur in fours
0%
d) flower parts occur in three.
Explanation
Answer:(c)
Q.37
When the lamina of a leaf is entire or when incised, the incisions does not touch the midrib, then the leaf is said to be:
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a) Simple leaf.
0%
b) Compound leaves.
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c) Decompound leaves.
0%
d) Pinnately compound leaves.
Explanation
Answer:(a)
Q.38
Filaments of stamen are united in two groups or bundles called:
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a) Polyandrous.
0%
b) Monadelphous.
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c) Diadelphous.
0%
d) Polyadelphous.
Explanation
Answer:(c)
Q.39
Find out the wrong statement:
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a) Aestivation is the arrangement of petals or sepals in a floral bud.
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b) The syncarpous condition is found in Michelia and has free carpels.
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c) The arrangement of ovules within the ovary is known as placentation.
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d) In Racemose inflorescence, the main axis continues to grow; the flowers are borne laterally in an acropetal succession.
Explanation
Answer:(b)
Q.40
Which one of the following is not associated with Colacasia?
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a) Spadix.
0%
b) Reticulate venation.
0%
c) Corm.
0%
d) Spike.
Explanation
Answer:(d)
Q.41
Epiphyllous condition is found in:
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a) Tobacco.
0%
b) China rose.
0%
c) Lilly.
0%
d) Sunflower.
Explanation
Answer:(c)
Q.42
Study the following statements and select the correct optionBuds are present in axil of leaflets of the compound leaf.Pulvinus leaf-base is present in some leguminous plants.In Alstonia, the petioles expand, become green and synthesize food.Opposite phyllotaxy is seen in guava.
0%
a) (ii) and (iv) are correct but (i) and (iii) are incorrect.
0%
b) (i) and (iii) are correct but (ii) and (iv) are incorrect.
0%
c) (i) and (iv) are correct but (ii) and (iii) are incorrect.
0%
d) (ii), (iii) and (iv) are correct but (i) is incorrect.
Explanation
Answer:(a)
Q.43
A branch in which each node bearing a rosette of leaves and a tuft of roots is found in aquatic plants like _________ and _________.
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a) Hydrilla and Pistia
0%
b) Eichhornia and Hydrilla
0%
c) Pistia and Eichhornia
0%
d) Pistia and Vallisneria
Explanation
Answer:(c)
Q.44
The part of the root which is most active in water absorption is called
0%
a) root cap
0%
b) maturation zone
0%
c) meristematic zone
0%
d) zone of elongation
Explanation
Answer:(b)
Q.45
The fibrous part of coconut is the:
0%
a) Exocarp.
0%
b) Endocarp.
0%
c) Mesocarp.
0%
d) Pericarp.
Explanation
Answer:(c)
Q.46
Which among the following is not an epigynous flower?
0%
a) Guava.
0%
b) Cucumber.
0%
c) Mustard.
0%
d) Sunflower.
Explanation
Answer:(c)
Q.47
Chrysanthemum multiplies vegetatively by:
0%
a) Suckers.
0%
b) Runners.
0%
c) Stolon.
0%
d) Offset.
Explanation
Answer:(a)
Q.48
Find the correct match:
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a) Spadix – sunflower.
0%
b) Verticillaster – Ocimum.
0%
c) Spike – Centella.
0%
d) Capitulum – Colacasia.
Explanation
Answer:(b)
Q.49
Cocoa is the plant from which chocolate is made. Which part is used to extract it?
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a) Flower.
0%
b) Fruit.
0%
c) Seeds.
0%
d) Bark.
Explanation
Answer:(c)
Q.50
Pneumatophores help in:
0%
a) Get oxygen for respiration.
0%
b) Get carbon dioxide for photosynthesis.
0%
c) Storing food materials.
0%
d) Conducting minerals and water.
Explanation
Answer:(a)
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