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Anatomy Of Flowering Plants

Question
CBSEENBI11003352
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In monocot roots which types of vascular bundles are found?

  • Collateral, conjoint and closed

  • Radial with exarch xylem

  • Bicollateral, conjoint and closed

  • Radial with endarch xylem

Solution

B.

Radial with exarch xylem

When xylem and phloem groups are located on different radii, the bundles are said to be radial e.g. root. The protoxylem element lie at the periphery and metaxylem in the centre, this condition is called exarch e.g. root.

Some More Questions From Anatomy of Flowering Plants Chapter

Draw illustrations to bring out anatomical difference between:
(a) Monocot root and dicot root
(b) Monocot stem and dicot stem

Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or a dicot stem? Give reasons.

The transverse section of a plant material shows the following anatomical features:
(a) the vascular bundles are conjoint, scattered and surrounded by a sclerenchymatous bundle sheaths.
(b) phloem parenchyma is absent. What will you identify it as?

Why are xylem and phloem called complex tissues?

What is stomatal apparatus? Explain the structure of stomata with a labelled diagram. 

Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.

How is the study of plant anatomy useful to us?

What is periderm? How does periderm formation take place in the dicot stems?

Describe the internal structure of a dorsiventral leaf with the help of labelled diagrams.

Cork cambium forms tissues that form the cork. Do you agree with this statement? Explain. 

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