What is anomalous secondary growth? Describe anomalous secondary growth in the Boerhaavia stem with proper labelled sketches.
Name the different types of permanent tissues in plant. Describe complex permanent tissues with appropriate sketches.
Give botanical names of two species of jute cultivated in West Bengal. Briefly describe the method of jute cultivation. Name two improved varieties of jute and give one example from each species.
Give scientific name, parts used, active principle, and uses of the following medicinal plants: Vasak, Kalmegh, Ipecac, Basil.
Group – B
How are annual rings formed? Explain with sketches.
Describe Korper-Kappe theory to explain root apex.
Write short notes on Plastochron and Sap wood.
Give scientific name and family of groundnut and pea. Mention parts used and uses of groundnut.
Give scientific names of Gram and Mung. Briefly describe the Gram plant and mention its food value.
Mention the prime factors involved in the production of drugs.
Group – C
“In monocot stem usually there is no secondary growth.” — Why ? What is amphiphloic siphonostele ? Give example.
Differentiate between heart wood and sap wood.
What is meant by Cork? How is it formed?
Classify meristem according to position in plant organ.
How do secondary metabolites differ from primary metabolites? Give one example of each.
What is Ethnobotany? Name four branches of ethnomedicine.
Mention the parts used and medicinal uses of Azadirachta.