Anatomy of Flowering Plants

Interfascicular cambium develops from the cells of

• medullary rays

• xylem parenchyma

• endodermis

• endodermis

Lenticels are involved in

• Transpiration

• Gaseous exchange

• Food transport

• Food transport

Companion cells are closely associated with 

• sieve elements

• vessel elements

• trichomes

• trichomes

Closed vascular bundles lack

• ground tissue

• conjunctive tissue

• cambium

• cambium

Water containing cavities in vascular bundles are found in 

• sunflower

• maize

• Cycas

• Cycas

To obtain virus - free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?

• Apical meristem only

• Palisade parenchyma

• Both apical and axillary meristems

• Both apical and axillary meristems

As compared to a dicot root, a monocot root has

• more abundant secondary xylem

• many xylem bundles

• inconspicuous annual rings

• inconspicuous annual rings

You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structure will you use to distinguish between the two?

• Secondary xylem

• Secondary phloem

• Protoxylem

• Protoxylem

Vascular bundles in monocotyledons are considered closed because

• a bundle sheath surrounds each bundle

• cambium is absent

• there are no vessels with perforations

• there are no vessels with perforations

A major characteristic of the monocot root is the presence of

• Open vascular bundles

• Scattered vascular bundles

• Vasculature without cambium

• Vasculature without cambium