Question

What is the functional role of vegetable tannins in plants?

• A. To resist microbial attack
• B. To increase water uptake
• C. To act as secondary metabolites
• D. To involve in photosynthesis

Hint:

Tannins are plant-produced compounds that help prevent microbial infection and herbivore damage, making them important for plant survival and defense.

Answer 1

The Correct Option is A

Vegetable tannins are secondary metabolites produced by plants that primarily serve to defend against herbivores and microbes. Tannins have antimicrobial properties, preventing pathogens from colonizing the plant. This makes them essential in maintaining the plant’s defense mechanisms. Step 1: Tannins' Protective Role
- Tannins, being phenolic compounds, are involved in making plant tissues less palatable or even toxic to herbivores.
- They also play a key role in resisting microbial infections, as they can inhibit the growth of fungi and bacteria.
- While tannins also act as secondary metabolites, their primary function is to defend against microbial and herbivorous damage.

Step 2: Conclusion
Thus, the correct answer is (A) To resist microbial attack.