Describe the role of bryophytes as indicators.

Give an account of the importance of lichens.

 What is the causal agent of wheat rust? Briefly describe its disease cycle.

Explain the life cycle of Neurospora with the help of a well labelled diagram.

Describe the various uses of algae.

What is heterospory? Describe how it has led to the evolution of seed habit in plants?

Citing examples and making labelled diagrams, explain the isomorphic and heteromorphic alternation of generation.

Describe the Endosymbiont Theory. Write the evidences that support this theory.

Jute

Ply wood

Ginkgo biloba

 Simple tissues

Write the steps involved from the time coffee berries are plucked until drinking coffee power is prepared.

 Compare the families Arecaceae and Poaceae with the reference to the following features:

Leaf, inflorescence, flowers, androecium, gynoecium

 Discuss why angiosperms are far more successful than any other plant group in the plant kingdom.

Compare the family Asteraceae and Rubiaceae and mention their similarities as well as differences also.

Compare and contrast the reproductive structures of Cycas and Pinus with diagrams.

Name the families in which these structures are found :

i) Hypanthodium                        vi) Culm

ii)  Tetradynamous androecium   vii) Obdiplostemonous androeciur

iii) Convoluted anthers               viii) Jaculator

iv) Capitulum inflorescence        ix) Gynobasic style

v) Intra-petiolar stipules              x) Pseudostem

Depict the following through clear and labeled diagram:

i) T.S. of needle of Pinus

ii) T.S. of coralloid root of Cycas with magnified view of algal zone.

iii) Cross section through the vascular bundle of Zea stem showing Y shaped xylem.

iv) L.S. of bulb of onion

Briefly explain the following terms and write the name of the family where the structure is found.

i) Diadelphous Stamens

ii) Phylloclade

iii) Verticillaster Inflorescence

iv) Protogynous flowers

v) Gynostegium