Biology, asked by alisha7013, 1 year ago

Give any two plant resources of Tannin.

Answers

Answered by H4MDAN
1

The deposit of tannins can occur in any type of plant tissue. Different parts of the plant contain different amounts of tannin, for example:

In the roots: tannin is mainly found in the hypodermis, under the epidermal layer where it acts as a protection against pathogens

In the trunk: tannin is present in the areas of active growth, such as the secondary phloem, the xylem and in the layer between the bark and the epidermis, where it regulates the growth of the tissues

Inside the seeds: tannin is located in the layer between the external tegument and the aleuronic layer contributing to the maintenance of dormancy

In the fruits and leaves: tannin provides an astringent flavor which reduces the appetite of herbivorous animals and insects and thus represents a natural line of defense

Answered by satyabrata2k3
1

Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids.

The term tannin (from Anglo-Norman tanner, from Medieval Latin tannāre, from tannum, oak bark) refers to the use of oak and other bark in tanning animal hides into leather. By extension, the term tannin is widely applied to any large polyphenolic compound containing sufficient hydroxyls and other suitable groups (such as carboxyls) to form strong complexes with various macromolecules.

The tannin compounds are widely distributed in many species of plants, where they play a role in protection from predation, and perhaps also as pesticides, and might help in regulating plant growth.[1] The astringency from the tannins is what causes the dry and puckery feeling in the mouth following the consumption of unripened fruit, red wine or tea.[2] Likewise, the destruction or modification of tannins with time plays an important role when determining harvesting times.

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