Cut pieces of beetroot do not leave colo | Class 11 Biology Chapter Transport in Plants, Transport in Plants 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?

Medicines are either man made (i.e., synthetic) or obtained from living organisms like plants, bacteria, animals etc. and hence the latter are
called natural products. Sometimes natural products are chemically altered by man to reduce toxicity or side effects. Write against each of
the following whether they were initially obtained as a natural product or as a synthetic chemical.
a. Penicillin ___________________________
b. Sulfonamide ___________________________
c. Vitamin C ___________________________
d. Growth Hormone ___________________________
 

Draw diagrams of a typical monocot and dicot leaves to show their venation pattern.

Differentiate between
a. Inspiratory and expiratory reserve volume
b. Vital capacity and total lung capacity
c. Emphysema and occupational respiratory disorder

What are three major types of cells found in the gastric glands? Name their secretions.

Name the most crucial enzyme found in root nodules for N2 fixation? Does it require a special pink coloured pigment for its functioning? Elaborate.

Suppose you accidentally find an old preserved permanent slide without a label. In your effort to identify it, you place the slide under microscope and observe the following features :-
a. Unicellular
b. Well defined nucleus
c. Biflagellate–one flagellum lying longitudinally and the other transversely.
What would you identify it as? Can you name the kingdom it belongs to?