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Test: Plant Kingdom - 2


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20 Questions MCQ Test Science & Technology for UPSC CSE | Test: Plant Kingdom - 2

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Test: Plant Kingdom - 2 - Question 1

Meristematic tissues are found in

Detailed Solution for Test: Plant Kingdom - 2 - Question 1

A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place. Meristematic cells give rise to various organs of a plant and are responsible for growth

Test: Plant Kingdom - 2 - Question 2

The phenomenon in which seeds germinate and seedlings grow while still attached to their mother plant before dropping down to establish themselves or be transported elsewhere, is most commonly found in which among the following plants?

Detailed Solution for Test: Plant Kingdom - 2 - Question 2

Allium cepa is onion. Solanum tuberosum is potato, Solanum melongena is Brinjal. The phenomenon given in this question is shown by Mangrove Plants and is known as Vivipary and Rhizophora belongs to that category.

Test: Plant Kingdom - 2 - Question 3

The Indian Pipe Plant or Monotropa can be best placed in which among the following groups?

Detailed Solution for Test: Plant Kingdom - 2 - Question 3

Pipe Plant is a total saprophyte i.e. thrives on dead or decayed organic matter.

Test: Plant Kingdom - 2 - Question 4

Nucleated part of nerve cell is called

Detailed Solution for Test: Plant Kingdom - 2 - Question 4

Axon is the long, thin hair like part arising from the cell body of the neuron. 
Dendrites are short, branched parts arising from the cell body or cyton. Dendrites are many in number.  
Cyton is a part of the neuron containing the nucleus. It is also called a cell body. Therefore, option C is correct.

Test: Plant Kingdom - 2 - Question 5

 Presence of vessel in the wood is

Detailed Solution for Test: Plant Kingdom - 2 - Question 5

Vessels are usually present in angiosperms while in other lower plants they are not present.

Test: Plant Kingdom - 2 - Question 6

 Which of the following is an epidermal cell

Detailed Solution for Test: Plant Kingdom - 2 - Question 6

Epidermal cells from the outer covering or surface which is mainly involved in protection and secretion. Guard cells, root hairs, and trichomes are all modifications of the epidermal cells.
(i) Root hair
Structure: 
Unicellular hairs are the extensions of an epidermal cell of roots in the root hair zone.
Function:
It increases the surface area for absorption of water and minerals.
(ii) Epidermal appendages
Structure:
These are called trichomes and are epidermal cell modifications. There may be unicellular or multicellular.
Functions:
Some perform for stinging produces and some glandular secretions.
(iii) Guard cell
Structure:
These are bean-shaped cells present on the epidermis of the leaf.
Functions:
These help in gaseous exchange and transpiration.
 

Test: Plant Kingdom - 2 - Question 7

Which among the following is the correct meaning of Phyllotaxy?

Detailed Solution for Test: Plant Kingdom - 2 - Question 7

The manner of arrangement of leaves in stem or branch is called Phyllotaxy

Test: Plant Kingdom - 2 - Question 8

Cavity or lumen is narrow in

Detailed Solution for Test: Plant Kingdom - 2 - Question 8

Lumen are cavities present inside the cell,cells of sclerenchyma tissue have narrow lumen because sclerenchyma are strongly lignified which lead to compressing the cell and thus only narrow cavity is left

Test: Plant Kingdom - 2 - Question 9

Which tissue does lack blood supply and heals slowly?

Detailed Solution for Test: Plant Kingdom - 2 - Question 9

Cartilage heals slowly because it has no blood supply

Test: Plant Kingdom - 2 - Question 10

A plant belonging to which of the following groups would show least adaptation to marine water?

Detailed Solution for Test: Plant Kingdom - 2 - Question 10

The correct option is C.
A plant belonging to the angiosperms group would show least adaptation to marine water. Angiosperms are vascular plants that have stems, roots, and leaves.
 

Test: Plant Kingdom - 2 - Question 11

 The dead element present in the phloem is

Detailed Solution for Test: Plant Kingdom - 2 - Question 11

Phloem fibres are thick walled, elongated spindle shaped dead cells which possess narrow lumen. They provides mechanical support to the tissue. Phloem parenchyma are thin walled-living cells of parenchyma. They have two functions, storage and lateral food conduction

Test: Plant Kingdom - 2 - Question 12

 Girth of stem increases due to

Detailed Solution for Test: Plant Kingdom - 2 - Question 12

The girth of the stem increases due to lateral meristem or cambium

Test: Plant Kingdom - 2 - Question 13

Which of the following plant growth hormone was recognized by Japanese scientists? 

Detailed Solution for Test: Plant Kingdom - 2 - Question 13

Gibberellins, first recognized in 1926 by a Japanese scientist, Eiichi Kurosawa. He was studying foolish seedling disease in Rice called as bakanae.

Test: Plant Kingdom - 2 - Question 14

Which of the following tissues has dead cells?

Detailed Solution for Test: Plant Kingdom - 2 - Question 14

Sclerenchyma → cells are the permanent tissues present in the plants. They provide hardness and stiffness to the plant and are composed of dead cells.

Test: Plant Kingdom - 2 - Question 15

Turmeric belongs to from which one of the following family of plants?

Detailed Solution for Test: Plant Kingdom - 2 - Question 15

Turmeric is a perennial species of herb belonging to the Zingiberaceae family, same as ginger. It is stark yellow to orange in color. Turmeric is also a rhizome that is used extensively for its anti-inflammatory properties.

Test: Plant Kingdom - 2 - Question 16

 Find the true statement:

Detailed Solution for Test: Plant Kingdom - 2 - Question 16

C is the correct option. 

  • Collenchyma is a simple tissue.
  • The meristematic cells are compactly arranged & do not contain any intercellular space between them. 
  • The term 'histology', from the Greek 'hίstos' for a 'web', appears in the title of Carl Mayer's (1787 – 1865) 41-page book Ueber Histologie und eine neue Eintheilung der Gewebe des menschlichen Körpers which was published by Adolph Marcus of Bonn in 1819. Hence, the statement is correct.
Test: Plant Kingdom - 2 - Question 17

 The chief function of vessels in the plant body is

Detailed Solution for Test: Plant Kingdom - 2 - Question 17

Xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. 

Test: Plant Kingdom - 2 - Question 18

 A tissue is a group of cells which are

Detailed Solution for Test: Plant Kingdom - 2 - Question 18

Tissue is a group of cells which act together to perform a specific task. If we talk about a single tissue then, all the cells constituting it performs similar function.

Test: Plant Kingdom - 2 - Question 19

Various functions like photosynthesis, storage, excretion performed by _________.

Detailed Solution for Test: Plant Kingdom - 2 - Question 19

Parenchyma forms the bulk of plant ground tissue, where they may be specialised to function in photosynthesisstorage, or transport.

Test: Plant Kingdom - 2 - Question 20

Lignin is the important constituent in the cell wall of

Detailed Solution for Test: Plant Kingdom - 2 - Question 20

Lignin is a constituent of the cell walls of almost all dry land plant cell walls.

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