How is the organization of DNA in prokaryotes different from that of eukaryotes? Discuss.

Describe the double helix model of DNA with a neat, well-labelled diagram.

Discuss 'Operon Concept'. Describe its structure and role in gene regulation.

Describe the structure of a eukaryotic cell with a properly labeled diagram.

Describe the process of glycolysis with the help of a labelled diagram.

Describe the structure of mycorrhiza. Comment on the role of mycorrhizal root association in mineral nutrition.

How does ABA act as a stress hormone?

What are the different biochemical and morphological changes recorded in plants in response to stress conditions? Discuss.

What are allosteric enzymes? Discuss with the help of an example.

Distinguish between short day and long day plants giving two examples of each. What is the role of phytochrome in flowering?

Discuss the 'sink' to 'source' transition during phloem unloading.

Describe the Munch Mass Flow model of translocation of solutes.

Describe the role of auxin and cytokinin in plant development.

Describe the role that macro and micro nutrients play in the growth and development of plants. Describe the deficiency symptoms of various elements in plants.

What are photosynthetic and non-photosynthetic pigments? Discuss their distribution and role in plant kingdom.

Describe the biochemistry of ammonia assimilation in plants.

How enzyme activity gets altered by inhibitors? Explain.

Fluorescence

Heterocyst

Holozyme