• Anatomy of Flowering Plants (Class - XI)
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Anatomy of Flowering Plants (Class - XI)

Description: Anatomy of Flowering Plants (Class - XI)
Number of Questions: 15
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Tags: Anatomy of Flowering Plants (Class - XI) Comparitive Anatomy of Monocots and Dicots Structural Organisation in Plants Anatomy of Plant Parts Secondary Growth in Plants Complex Permanent Tissue Classification of Division Angiosperma Tissue System Connective Tissue Phloem Stem
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Which of the following structures will not be visible in the section of a hyaline cartilage?

  1. Perichondrium

  2. Chondroblast

  3. Lacuna

  4. Haversian canal

Show answer
Correct Option: D
Explanation:

It is present in the bones.

Which of the following is a difference between monocots and dicots?

  1. Leaf venation in dicots is parallel and is reticulate in monocots.

  2. Embryo has 2 cotyledons in dicots and 3 or multiples of 3 in monocots.

  3. Floral parts of dicots are multiples of 4 and 5 and multiples of 3 in monocots.

  4. Vascular bundles are in bundles in monocots and scattered in dicots.

Show answer
Correct Option: C
Explanation:

Floral parts of dicots are multiples of 4 and 5 and multiples of 3 in monocots.

Trichomes are characteristics of

  1. epidermis

  2. hypodermis

  3. cortex

  4. endodermis

Show answer
Correct Option: A
Explanation:

Trichomes on plants are epidermal outgrowths of various kinds.

The characteristic thickenings present on the radial and transverse walls of endodermis are

  1. casparian strips

  2. bundle caps

  3. bundle sheaths

  4. passage cells

Show answer
Correct Option: A
Explanation:

The characteristic thickenings present on the radial and transverse walls of endodermis are casparian strips.

The vascular bundles of a monocot stem are

  1. collateral and closed

  2. collateral and open

  3. radially arranged and open

  4. radially arranged and closed

Show answer
Correct Option: A
Explanation:

The vascular bundles of a monocot stem are collateral and closed.

Fusiform initial cells produce

  1. vascular rays

  2. ray parenchyma

  3. trachery element

  4. primary phloem

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Correct Option: A
Explanation:

 Fusiform initial cells produce vascular rays.

Protosteles are found in

  1. bryophyta

  2. gymnosperms

  3. pteridophyta

  4. angiosperms

Show answer
Correct Option: C
Explanation:

Protostele is the simplest type of stele that comprises the central core of xylem surrounded by phloem, pericycle and endodermis. 

Which of the following pairs of plant structures has haploid number of chromosomes?

  1. Egg nucleus and secondary nucleus

  2. Megaspore mother cell and antipodal cells

  3. Egg cell and antipodal cells

  4. Nucellus and antipodal cells

Show answer
Correct Option: C
Explanation:

Egg and antipodal cells are haploid in nature.

Girdling of a tree involves the removal of

  1. xylem

  2. phloem

  3. xylem and phloem

  4. vascular cambium

Show answer
Correct Option: B
Explanation:

 Phloem is the conducting tissue, which is removed in girdling as it forms a part of the bark.

Directions: The following question has four choices out of which ONLY ONE is correct.

In a flowering plant, i.e an angiosperm, sugars are transported

  1. upward in the xylem

  2. upward in the phloem

  3. both upward & downward in the phloem

  4. both upward & downward in the xylem

Show answer
Correct Option: C
Explanation:

This is the correct answer as sugars are transported in both the directions.

Which of the following is a dead mechanical tissue?

  1. Parenchyma

  2. Chlorenchyma

  3. Sclerenchyma

  4. Collenchyma

Show answer
Correct Option: C
Explanation:

This tissue consists of thick-walled dead cells.

Periblem gives rise to

  1. cortex

  2. stele

  3. epidermis

  4. pith

Show answer
Correct Option: A
Explanation:

Cortex rises from periblem.

Organisation of stem apex into corpus and tunica is determined mainly by

  1. planes of cell division

  2. regions of meristematic activity

  3. rate of cell growth

  4. rate of shoot tip growth

Show answer
Correct Option: A
Explanation:

 Cells of tunica divide anticlinally to form the outer layer.

Which of the following statements does NOT characterise monocots?

  1. Some monocots, such as grass, have hypogeal emergence.

  2. Monocots have atactostele type of vascular tissues.

  3. Many monocots are herbaceous and do not show secondary growth.

  4. Many monocots have leaves with reticulate veins.

  5. The monocots are considered to form a monophyletic group arising early in the history of the flowering plants.

Show answer
Correct Option: D
Explanation:

Many monocots also have leaves with parallel veins.

Which of the following statements regarding dicots is false?

  1. The seedpod can have any number of chambers, from none to many.

  2. The flowers of dicots usually have flower parts in fours or fives.

  3. The stems of dicots are usually tough.

  4. When a dicot germinates, it produces numerous seed leaves.

  5. Dicots have two seed leaves inside the seed coat.

Show answer
Correct Option: D
Explanation:

When a dicot germinates, it produces two seed leaves.

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