Which of the following clogs the cavity of the xylem vessels?
Tylosis
Cystolith
Hydathode
Raphide
A.
Tylosis
Tyloses develop in tracheary elements as the balloon like enlargements due to protrusions axial and ray parenchyma cells. This clogs the cavity of the xylem vessels.
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.
A transverse section of stem is stained first with safranin and then with fast green following the usual schedule of double staining for the preparation of a permanent slide. What would be the colour of the stained xylem and phloem?
Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is
A conjoint and open vascular bundle will be observed in the transverse section of
Match the followings and choose the correct option from below
A. Meristem i. Photosynthesis, storage
B. Parenchyma ii. mechanical support
C. Collenchyma iii. Actively dividing cells
D. Sclerenchyma iv. stomata
E. Epidermal tissue v. sclereids
Options:
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