Veins of leaf in addition to acting as channels of transport of water, minerals and food materials also

1.  Determine the extent of incision of the lamina

2.  Provide rigidity to the leaf blade

3.  Hold the leaf blade to light

4.  Flutter the leaf in wind thus, helping in cooling of leaf and bringing fresh air

 

Subtopic:  Morphology of Leaf |
 73%
From NCERT
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Choose the correct option with respect to Solanaceae

a.  Alternate, Stipulate, cauline leaves

b.  Bisexual actinomorphic flowers

c.  Five persistent calyx

d.  Epipetalous, diadelphous condition

e.  Axile placentation with swollen placenta

f.  Floral formula 

1.  a, b, d, e, f

2.  a, b, c

3.  b, c, e

4.  b, c, d, f

Subtopic:  Families of Flowering Plant: II |
From NCERT
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In Australian Acacia plant, the

1.  Leaves are small and long-lived

2.  Petiole carries out the functions of the lamina

3.  leaves are modified into pitchers

4.  Petioles are called as cladophyll after modification

 

Subtopic:  Modification of Leaf |
 59%
From NCERT
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Select the incorrect match with respect to placentation

1.  Basal              -    Marigold

2.  Free central    -    Primrose

3.  Marginal         -     Pea

4.  Parietal          -    Brinjal 

 

Subtopic:  Parts of Flower: III |
 86%
From NCERT
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Select the incorrect statement with respect to family Liliaceae 

1.  Fruit is generally berry

2.  Flower is bisexual and actinomorphic

3.  Seed is endospermous

4.  Ovary is trilocular with many ovules 

Subtopic:  Families of Flowering Plant |
 65%
From NCERT
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Half superior-half inferior ovary is found in the perigynous flower of

1.  Peach

2.  China rose

3.  Mustard

4.  Sunflower

 

Subtopic:  Flower & Parts of Flower: I |
 91%
From NCERT
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In which plant, petals in a whorl just touch one another at the margin, without overlapping in the floral bud?

1.  Cassia

2.  Calotropis

3.  China rose

4.  Trifolium

Subtopic:  Flower & Parts of Flower: I |
 83%
From NCERT
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Match the Column-l with Column-ll

      Column-l                                     Column-ll

a.  Marginal placentation              i.  Single ovule is present in unilocular ovary

b.  Axile placentation                    ii.  Replum may be present

c.  Parietal placentation                iii.  Placenta forms a ridge along the ventral suture of ovary                                                       

d.  Basal placentation                   iv.  Tomato, Lemon

1.  a(iii), b(i), c(iv), d(ii)

2.  a(ii), b(iii), c(iv), d(i)

3.  a(iii), b(iv), c(ii), d(i)

4.  a(iii), b(iv), c(i), d(ii)

Subtopic:  Parts of Flower: III |
 79%
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Modified aerial stem with the branching of unlimited growth as the photosynthetic structure is

1. Flattened in Opuntia and Euphorbia

2. Fleshy and cylindrical in Euphorbia

3. Cylindrical in Opuntia

4. Cylindrical in Euphorbia and Opuntia

Subtopic:  Aerial Stem Modification |
 70%
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Pinnately compound leaves have all the following features except

1.  leaflets are attached to rachis or its branches

2.  Possess a bud in the leaf axil

3.  Leaflets attached at the tip of the petiole

4.  Stipules may be present at the base of the rachis

Subtopic:  Venation, Types of Leaves & Phyllotaxy |
 61%
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