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Morphology of Plants

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Number of Questions: 15
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Tags: Plant Morphology Flower morphology Class XI Biology Flower
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In which part of a plant is claw and limb differentiation found?

  1. Sepals

  2. Petals

  3. Leaves

  4. Pistils


Correct Option: B
Explanation:

Claw and limb differentiation is found in petals.

It consist of five or more petals. Petals are with broad claws and limbs; the limbs projected regularly outwards.

Which kind of corolla is being referred to in the above passage?

  1. Rotate

  2. Rosaceous

  3. Infundibuliform

  4. Campanulate


Correct Option: B
Explanation:

Rosaceous corolla consists of five or more petals. 

Which kind of corolla is seen in jasmine flower?

  1. Infundibuliform

  2. Campanulate

  3. Rotate

  4. Tubular


Correct Option: C
Explanation:

Jasmine flower has rotate corolla.

What kind of corolla is found in mustard?

  1. Caryophyllaceous

  2. Cruciform

  3. Rosaceous

  4. Tubular


Correct Option: B
Explanation:

The corolla of mustard is of cruciform type.

What is the outermost largest petal of papilionaceous known as?

  1. Wing

  2. Keel

  3. Vexillium

  4. Palate


Correct Option: C
Explanation:

The outermost largest petal is known as vexillium.

The corollar appendage found in Madar is

  1. ligule

  2. corona

  3. spur

  4. palate


Correct Option: B
Explanation:

The appendage of corolla found in Madar is corona.

What kind of corolla is papilionaceous?

  1. Gamopetalous and irregular

  2. Polypetalous and monosymmetrical

  3. Polypetalous and regular

  4. Gamopetalous and monosymmetrical


Correct Option: B
Explanation:

Papilionaceous is a polypetalous and monosymmetrical corolla.

In a campanulate corolla,

  1. the petals become united to form a short tube-like structure

  2. the corolla is bell-shaped

  3. the corolla is funnel-shaped

  4. the corolla is wheel-shaped


Correct Option: B
Explanation:

Campanulate corolla has bell-shaped structure.

Flowers of compositae family are characterised by

  1. spurred corolla

  2. bilabiate corolla

  3. ligulate corolla

  4. masked corolla


Correct Option: C
Explanation:

Flowers of compositae family are characterised by ligulate corolla.

In which of the following personnates is corolla found?

  1. Mint

  2. Antirrhinum

  3. Daisy

  4. Larkspur


Correct Option: B
Explanation:

Antirrhinum has personnate corolla.

It is a salver-shaped corolla. It is provided with a elongated narrow tube having lobes at the top placed at right angles.

Which type of corolla is being referred to in the above passage?

  1. Companulate

  2. Hypocrateriform

  3. Ligulate

  4. Bilabiate


Correct Option: B
Explanation:

Hypocrateriform is a salver-shaped corolla.

What kind of aestivation is found in the sepals of mustard?

  1. Velvate

  2. Open

  3. Twisted

  4. Imbricate


Correct Option: B
Explanation:

Open aestivation is found in mustard. 

It is a common type of imbricate aestivation of a five-membered calyx or corolla in which two members overlap their neighbours by both edges, two are overlapped on both edges and one overlaps one neighbour and is overlapped by the other, e.g. calyx of roses, corolla of caryophyllaceae.

The above passage defines which kind of aestivation?

  1. Contorted aestivation

  2. Vexillary aestivation

  3. Quincuncial aestivation

  4. Valvate aestivation


Correct Option: C
Explanation:

The above passage defines quincuncial aestivation.

Which aestivation is confined only to pentamerous flowers?

  1. Quincuncial

  2. Vexillary

  3. Contorted

  4. Valvate


Correct Option: B
Explanation:

Vexillary aestivation can be found in flowers of different merosity, like tephrosia, crotalaria and dolichos.

The margins of sepals and petals lie close to each other, but do not overlap. Such kind of flowers are found in which plant?

  1. China rose

  2. Calotropis

  3. Pumpkin

  4. Pea


Correct Option: B
Explanation:

Margins of adjacent petals or sepals touch each other without overlapping in calotropis flower.

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