Anatomy of flowering plants

Sclereids are commonly found in the-

I) Fruit wall of nuts

II)pulp of fruit like guava & pear

III) Seed coat of legumes.

IV) microplyle of pea

Select the correct combination-

• All except I

• All except II

• All except III

• All except IV

I) Long cylindrical tube like structure made up of many cells, lignified cell wall & large central cavity.

II)Protoplasm is not present.

Above characteristics belong to which of the following?

• tracheids

• companion cells

• Xylem vessel

• Seive tubes

I) made up of scelerenchymatous cells,

II) Generally absent in primary phloem

III) Much elongated & pointed.

Above characteristics match with which of the following?

• Phloem fibre

• Xylem Fibre

• Companion cells

• seive cells

Seive tubes are used for the translocation of food because they posses-

• bordered pits

• no end walls

• broader lumen & perforated cross walls

• no protoplasm

The ____A____ are parenchymatous cells which are closely associated with seive tube elements .The Seive tube elements & ____B___ are connected by _____C____ between their common ___D___ walls-

• A- tracheid

  B- companion

  C- perforations

  D-longitudinal

• A- vessel

  B- Tracheids

  C- seive plates

  D- lateral

• A- companion cell

  B- companion cells

  C- pit fields

  D- longitudinal

• A- companion

  B- phloem fibres

  C- pit fields

  D- lateral

I. Roots are unicellular.

II, Trichomes are usually multicellualr.

Identify the correct option

• I is Correct II is incorrect

• Both I & II are correct

• Both I & II are incorrect

• I is incorrect but II is correct

the stele found in monocot is-

• Atactostele

• Eustele

• Dictyostele

• Actinostele

Ground tissue does not include-

I) Epidermis.

II)Vascular bundle

III) Scelerenchyma

IV) Collenchyma

V) Parenchyma

• III & II

• I & II

• I & V

• I & IV

When Xylem & phloem are separated by a strip of cambium, vascular bundle is called-

• collateral & open

• collateral & closed

• bicollateral & open

• Concentric & closed

Medullary rays are formed by the-

• radially placed parenchymatous cells between vascular bundles

• longitudinally placed parenchymatous cells between vascular bundles

• laterally placed parenchymatous cells between vascular bundles

• obliquely placed parenchymatous cells between vascular bundles