Tag: pictorial feature of plant kingdom

Questions Related to pictorial feature of plant kingdom

Vessels are absent in angiosperm

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Magnolia

  2. Drimys

  3. Dillenia

  4. None of the above

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Correct Option: B

Which series includes ranales, parietales and malvales?

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Calyciflorae

  2. Thalamiflorae

  3. Disciflorae

  4. Bicarpellatae

  5. Inferae

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Correct Option: B

In prothallus of vascular crypogams, antherozoids and eggs mature at different times resulting in

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. High degree of sterility

  2. Apomixis

  3. Prevention of self fertilisation

  4. No change in success rate of fertilization

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Correct Option: C

Male gametophyte with least number of cells is present in

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Funaria

  2. Lilium

  3. Pinus

  4. Pteris

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Correct Option: B

A plant with bulb, trimerous flowers, $6$ stamens in two whorls belongs to a specific class in Bentham and Hooker's classification. The number of natural orders present in that class is

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. $165$

  2. $202$

  3. $3$

  4. $34$

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Correct Option: D

Trimerous flowers occur in

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Monocots

  2. Dicots

  3. Gymnosperms

  4. All of the above

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Correct Option: A
Explanation:

Trimerous flowers are those that have floral parts in the count of three. These flowers are characteristic features of monocots. 

A. Monocots have trimerous florets.
B. Dicots either have tetramerous or pentamerous flowers. 

C. Gymnosperms do not have the flowers. They produce the naked seeds.
Hence, the correct answer is 'Monocots'

Rolling grass is

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Agropyron

  2. Ammophila

  3. Poa

  4. All the above

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Correct Option: D
Explanation:

The grasses, used in the making of lawns are called Rolling grass or Lawn grass. Agropyron, Ammophila, Poa are used in making lawns. So they are called Rolling grass.

So, the correct option is ‘All of the above’.

Wrong statement about angiospperm roots is?

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Apex is protected by root cap

  2. Vascular bundles are collateral

  3. Xylem is centripetal in young state

  4. Cuticle is absent in young state

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Correct Option: B
Explanation:

A. True - In Angiosperms, the root tip is covered by a protective layer called Root cap or Calyptra, to provide protection.

B. False - in the roots, xylem and phloem are present on the different radii. so they are called radial vascular bundles, not collateral vascular bundles.
C. True - in the roots, development of xylem proceeds from periphery to centre.  It is called centripetal development of xylem.
D. True - Roots are not covered externally by cuticle, it is waxy layer.
So, the correct option is ' Vascular bundles are collateral'.

A monocot showing secondary growth is

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Coconut

  2. Sugarcane

  3. Maize

  4. Yucca

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Correct Option: D
Explanation:

Yucca is a monocot and a member of Liliaceae, shows anamolous secondary growth.

So, the correct answer is ‘Yucca’.

Greatest extent of adaptation to various environments is found in 

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Gymnosperms.

  2. Bryophytes.

  3. Ferns.

  4. Angiosperms.

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Correct Option: D
Explanation:

Greatest extent of adaptation to various environments is found in angiosperms. Angiosperms grow on most of the places on earth. They grow in hot and cold deserts. They also grow in high altitude of Himalayas.

Thus, the correct answer is option D.