Why do seeds need water to germinate?

• A. Water provides energy.
• B. Water activates the chlorophyll molecules so that photosynthesis can begin.
• C. Water dissolves the minerals in the soil so that they become available to the seed.
• D. Because water has a neutral pH, it balances the soil pH and makes it favorable for seed germination.
• E. Imbibition of water causes the seed coat to swell and allows the cells of the embryo to rehydrate.

Answer: (E)

Verified step by step guidance

1. Understand that seed germination is the process by which a seed develops into a new plant. This process requires specific conditions, including the presence of water.
2. Recognize that water is crucial for the process of imbibition, where the seed absorbs water, causing it to swell. This is the first step in germination.
3. Imbibition of water leads to the swelling of the seed coat, which is necessary for the seed to break dormancy and begin the germination process.
4. Once the seed coat swells, water allows the cells of the embryo inside the seed to rehydrate, which is essential for the resumption of metabolic activities.
5. Rehydration of the embryo cells activates enzymes that facilitate the breakdown of stored food resources within the seed, providing energy for growth and development.