Morphology of Flowering Plants Test 46

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Morphology of Flowering Plants Test 46

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Weekly Quiz Competition

Question 1
1 / -0

The function of anther is?

A
Produce Ubisch bodies

B
Produce pollen grains

C
Store and protect pollen grains

D
All of the above

Solution

Function of anther is to protect, store, produce pollen grain and also to produce ubisch bodies. They are small acellular structures of sporopollenin helping in develpoment of pollen grains.
So, the correct option is D.
Question 2
1 / -0

Monocotyledonous/ wheat seed has one large shield - shaped cotyledon known as

A
Coleoptile

B
Scutellum

C
Aleurone layer

D
Coleorhiza

Solution

Coleoptile is a sheath protecting a young shoot top in monocotyledons such as grasses. They have two vascular bundles, one on either side.
The scutellum is part of the structure of a barley and rice seed- the modified seed leaf. It is the large shield shaped cotyledon.
Aleurone layer is the outermost proteinaceous layer of endosperm, followed by the inner starchy endosperm. It lies between the pericarp and the hyaline layer of the endosperm.
Coleorhiza is a sheath protecting the root of germinating monocots. It connects coleoptile with primary root and is a protective covering enclosing the radicle.
So, the correct answer is 'Scutellum'
Question 3
1 / -0

An anther having four microsporocytes shall produce pollen grains.

A
$$24$$

B
$$12$$

C
$$8$$

D
$$16$$

Solution

Double lobed anthers have four pollen sacs (microsporocytes). Sporocytic tissues undergo meiotic division hence one sporocyte will produce 4 microspores (pollen grains). Therefore four microsprocytes will produce sixteen microspores.
So, the correct option is D.
Question 4
1 / -0

Testa and tegmen of a seed are

A
Active embryo

B
Micropyle end

C
Chalazal end

D
Protective layers

Solution

Seed is fertilized and ripened the ovule. It contains an active embryo. It reserves food for its development. Each seed is covered by two protective seed coats. The outer seed coat is called as testa and inner seed coat is called as tegmen. Micropyle is present on the covering of the seed.
Thus, the correct answer is option A.
Question 5
1 / -0

Caruncle is derived from

A
Peduncle

B
Cotyledon

C
Outer integument

D
Inner integument

Solution

In plants, caruncle is an outgrowth near the hilum on the seeds of some plants of family Euphorbiaceae (like Hevea ). The outer integument is the outermost part of the ovule. During development of the ovule, the outer integument differentiates into different layers of seed coat. Caruncle is also derived from outer integument.
Thus the correct answer is option C.
Question 6
1 / -0

Simple, cluster of radial leaves, stipulate and parallel venation leaves and cyme or umbel inflorescence are the characteristics of

A
Poaceae

B
Liliaceae

C
Asteraceae

D
Fabacceae

Solution

Liliaceae is commonly called 'the lily family'. The plants belonging to this family are monocotyledonous plants. They are widely distributed worldwide. They have simple and the cluster of radial leaves. They are mostly basal, alternate, linear, exstipulate with parallel venation leaves. Inflorescence can be solitary or sometimes cymose or often umbellate clusters. Asparagus, Aloe, Tulip, etc., are the members of Liliaceae.
Question 7
1 / -0

Axile placentation, trimerous flower and superior ovary are characteristic feature of family

A
Cucurbitaceae

B
Compositae

C
Solanaceae

D
Liliaceae

Solution

Trimerous, flower, axile placentation and superior very are the characteristic feature of family Lillaceae. For example, the members of Liliaceae family are onion, garlic. Cucurbitaceae, Compositae have characteristic pentamerous flowers, taproot end and reticulate venation in leaves.
Thus, the correct answer is option D.
Question 8
1 / -0

Non-porous wood is found in __________.

A
Dicot

B
Monocot

C
Gymnosperm

D
Pteridophytes

Solution

Non porous woods are found in gymnosperms. Non porous wood are the wood which do not permit transfer of water or air.
Question 9
1 / -0

To how many families the given plants belong Glycyrrhiza, Abrus, Yucca, Colchicum

A
2

B
3

C
4

D
5

Solution

The given plants belong to three families.
Glycyrrhiza; Glycine and Abrus belong to family Fabaceae.
Yucca and Dracaena belong to the family Asparagaceae.
Colchicum belongs to the family Colchicaceae.
So, the correct answer is B.
Question 10
1 / -0

Which one of the following types of inflorescence is found in carrot?

A
Catkin

B
Corymb

C
Spike

D
Umbel

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Morphology of Flowering Plants Test 46

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Morphology of Flowering Plants Test 46

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SHARING IS CARING

Question 1

Produce Ubisch bodies

Produce pollen grains

Store and protect pollen grains

All of the above

Solution

Question 2

Coleoptile

Scutellum

Aleurone layer

Coleorhiza

Solution

Question 3

$$24$$

$$12$$

$$8$$

$$16$$

Solution

Question 4

Active embryo

Micropyle end

Chalazal end

Protective layers

Solution

Question 5

Peduncle

Cotyledon

Outer integument

Inner integument

Solution

Question 6

Poaceae

Liliaceae

Asteraceae

Fabacceae

Solution

Question 7

Cucurbitaceae

Compositae

Solanaceae

Liliaceae

Solution

Question 8

Dicot

Monocot

Gymnosperm

Pteridophytes

Solution

Question 9

2

3

4

5

Solution

Question 10

Catkin

Corymb

Spike

Umbel

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