Multiple Choice Questions

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Interfascicular cambium is a

  • primary meristematic tissue

  • primordial meristem

  • type of protoderm

  • secondary meristematic tissue


D.

secondary meristematic tissue

The meristem that occurs in the mature regions of roots and shoots of many plants, particularly those that produce woody axis and appea later than primary meristem is called the secondary or lateral meristem. They are cylindrical meristems. Fascicular vascular cambium, interfascicular cambium and cork cambium are examples of lateral meristems. These are mainly responsible for producing secondary tissues.


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Interfascicular cambium develops from the cells of

  • medullary rays

  • xylem parenchyma

  • endodermis

  • pericycle


Medullary rays are tissues made up of

  • phloem parenchyma

  • xylem parenchyma

  • sieve tube

  • sclerenchyma


Quiescent centre is found in plants at

  • root tip

  • cambium

  • shoot tip

  • leaf tip


Pith is absent in

  • protostele

  • eustele

  • amphiphloic stele

  • ectophloic stele


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One of the characteristic of sieve tube is

  • it is a part of phloem

  • function is transport of inorganic solutes

  • it is dead cell

  • sieve plate is not present


Portion of apical meristem that gives xylem tissue is called

  • protoxylem

  • procambium

  • metaxylem

  • tracheid


Lenticels are involved in

  • transpiration

  • gaseous exchange

  • food transport

  • photosynthesis


Age of a tree can be estimated by

  • its height and girth

  • biomass

  • number of annual rings

  • diameter of its heartwood


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In the following pairs, where do you get lignin in both the element?

  • Tracheid and collenchyma

  • Sclerenchyma and sieve tube

  • Sclerenchyma and trachea

  • Parenchyma and endodermis


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