Quiescent centre is found in plants at from Biology Anatomy of F

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 Multiple Choice QuestionsMultiple Choice Questions

61.

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


62.

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


63.

Pith is absent in

  • protostele

  • eustele

  • amphiphloic stele

  • ectophloic stele


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64.

Quiescent centre is found in plants at

  • root tip

  • cambium

  • shoot tip

  • leaf tip


A.

root tip

Quiescent centre is a region in the apical meristem of a root where cell division proceeds very slowly or not at all. Although, the cells are capable of resuming meristematic activity should tissue surrounding them to be damaged.


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65.

Interfascicular cambium is a

  • primary meristematic tissue

  • primordial meristem

  • type of protoderm

  • secondary meristematic tissue


66.

Portion of apical meristem that gives xylem tissue is called

  • protoxylem

  • procambium

  • metaxylem

  • tracheid


67.

Interfascicular cambium develops from the cells of

  • medullary rays

  • xylem parenchyma

  • endodermis

  • pericycle


68.

Lenticels are involved in

  • transpiration

  • gaseous exchange

  • food transport

  • photosynthesis


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69.

Age of a tree can be estimated by

  • its height and girth

  • biomass

  • number of annual rings

  • diameter of its heartwood


70.

Medullary rays are tissues made up of

  • phloem parenchyma

  • xylem parenchyma

  • sieve tube

  • sclerenchyma


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