Glycine and Alanine are different with r | Class 11 Biology Chapter Biomolecules, Biomolecules NCERT Solutions

Define a taxon. Give some examples of taxa at different hierarchical levels.

What are the steps involved in formation of a root nodule?

Stolon, offset and rhizome are different forms of stem modifications. How can these modified forms of stem be distinguished from each other?

We find that Rhizobium forms nodules on the roots of leguminous plants. Also Frankia another microbe forms nitrogen fixing nodules on the roots of non-leguminous plant Alnus.
a. Can we artificially induce the property of nitrogen fixation in a plant – leguminous or non-leguminous?
b. What kind of relationship is observed between mycorrihiza and pine trees?
c. Is it necessary for a microbe to be in close association with a plant to provide mineral nutrition? Explain with the help of one example.

Complete the missing terms
a. Inspiratory Capacity (IC) = _____ +IRV
b. ___________________ = TV + ERV
c. Functional Residual Capacity (FRC) = ERV + ____

Distinguish between
(a) IRV and ERV
(b) Inspiratory capacity and Expiratory capacity
(c) Vital capacity and Total lung capacity

Carefully observe the following figure

a. Name the technique shown in the figure and the scientist who demonstrated this technique for the first time.
b. Name atleast three plants for which this technique can be employed for their commercial production.
c. What is the significance of aerating tube and feeding funnel in this setup?