Given below is a section of a Maize grain. Identify 'A' and state its function.

Explanation

**Step-by-Step Solution:**

1. **Identify the Structure**: In the section of the maize grain provided, the part labeled 'A' is identified as the coleoptile.

2. **Describe the Coleoptile**: The coleoptile is a cylindrical structure that encases the emerging shoot of the maize plant. It is typically pointed and serves as a protective sheath for the young shoot as it grows.

3. **State the Function**: The primary function of the coleoptile is to facilitate the emergence of the first leaf from the maize grain. It helps in pushing the shoot upwards through the soil, allowing the plant to access sunlight and air for photosynthesis.

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