All gibberellins are

Options

A. basic
B. acidic
C. neutral
D. either acidic or basic

Answer

**Step-by-Step Solution:**

1. **Identify the Type of Hormones**: The question asks about gibberellins (also known as gibberellic acids). These are a type of plant hormone that promotes growth.

2. **Understand the Nature of Gibberellins**: Gibberellins are classified as plant growth regulators. They can be categorized into two types: promoters and inhibitors. Gibberellins fall under the category of promoter hormones.

3. **Recognize the Discovery of Gibberellins**: There are over 100 different gibberellins identified, which are denoted as GA1, GA2, GA3, and so on. The first gibberellin discovered was GA3, also known as gibberellic acid.

4. **Determine the Chemical Nature of Gibberellins**: It is important to note that all gibberellins are acidic in nature. This is a key characteristic that defines them.

5. **Summarize the Functions of Gibberellins**: Gibberellins are responsible for various growth-promoting activities, including:
- Increasing internodal length.
- Promoting seed germination.
- Speeding up the malting process in brewing industries.
- Facilitating bolting (the rapid growth of flowering stems) in certain plants.

6. **Conclude the Answer**: Based on the information gathered, the correct answer to the question "All gibberellins are" is that they are **acidic**.

**Final Answer**: All gibberellins are acidic.

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