Advertisements
Advertisements
The male and female reproductive organs of several pteridophytes and gymnosperms are comparable to floral structures of angiosperms. Make an attempt to compare the various reproductive parts of pteridophytes and gymnosperms with reproductive structures of angiosperms.
Concept: undefined >> undefined
Give an example for the following:
An organ, which regulates buoyancy
Concept: undefined >> undefined
Advertisements
In conifers fibres are likely to be absent in ______.
Concept: undefined >> undefined
What constitutes the cambial ring?
Concept: undefined >> undefined
A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed? What is the significance of these rings?
Concept: undefined >> undefined
Trunks of some of the aged tree species appear to be composed of several fused trunks. Is it a physiological or anatomical abnormality? Explain in detail.
Concept: undefined >> undefined
Write the function of:
Interfasicular cambium
Concept: undefined >> undefined
Deciduous plants shed their leaves during summer or in autumn. This process of shedding of leaves is called abscission. Apart from physiological changes what anatomical mechanism is involved in the abscission of leaves.
Concept: undefined >> undefined
Is Pinus an evergreen tree? Comment.
Concept: undefined >> undefined
Distinguish between the following:
Interfasicular cambium and intrafasicular cambium
Concept: undefined >> undefined
What is the basis for designating C3 and C4 pathways of photosynthesis?
Concept: undefined >> undefined
Cork cambium forms tissues that form the cork. Do you agree with this statement? Explain.
Concept: undefined >> undefined
What is periderm? How does periderm formation take place in dicot stem?
Concept: undefined >> undefined
The male and female reproductive organs of several pteridophytes and gymnosperms are comparable to floral structures of angiosperms. Make an attempt to compare the various reproductive parts of pteridophytes and gymnosperms with reproductive structures of angiosperms.
Concept: undefined >> undefined
Interfascicular cambium and cork cambium are formed due to ______.
Concept: undefined >> undefined
Phellogen and Phellem respectively denote ______.
Concept: undefined >> undefined
When we peel the skin of a potato tuber, we remove ______.
Concept: undefined >> undefined
Give one basic functional difference between phellogen and phelloderm.
Concept: undefined >> undefined
Arrange the following in the sequence you would find them in a plant starting from the periphery – phellem, phellogen, phelloderm.
Concept: undefined >> undefined
If one debarks a tree, what parts of the plant is being removed?
Concept: undefined >> undefined
