HSC Science इयत्ता ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Biology (Botany and Zoology)

Bring out the significance of Transmission Electron Microscope.

Why the cells of sclerenchyma and tracheids become dead?

Explain sclereids with their types.

What are sieve tubes? Explain.

What is the fate of primary xylem in a dicot stem showing extensive secondary growth?

The element which is not remobilized?

Match the correct combination.

Which chlorophyll molecule does not have a phytol tail?

During oxidation of two molecules of cytosolic NADH + H⁺, number of ATP molecules produced in plants are ______.

______ is a powerful growth inhibitor.

Select the correctly matched one.

Write the physiological effects of Cytokinins.

Write the distinguishing features of monera.

Briefly discuss on five Kingdom classification. Add a note on merits and demerits.

Which of the following is polycarpic plant?

Vexillary aestivation is characteristic of the family ______.

Phylogenetic classification is the most favoured classification because it reflects ______.

The taxonomy which involves the similarities and dissimilarities among the immune system of different taxa is termed as ______.

State the protoplasm theory.

In a fully turgid cell