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Guttation occurs through
A. Roots
B. Hydathode
C. Trichome
D. Stomata

Answer
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Hint: Guttation is the method of secreting water droplets from the pores of certain vascular plants, such as grass. A mixture of inorganic and organic compounds, which primarily contain potassium and sugars form the guttation liquid. The white crust remains on the top of the herb.

Complete Answer:
- The plant takes in water and grows using photosynthesis. A mechanism called guttation is one way that plants can regulate the amount of water they take in. Guttation is where the tips of the leaves of plants are secreted by water.
- Guttation occurs when the soil is very wet at night and water is drained by the roots. It takes up salts, enzymes and other chemicals as water from the soil flows through the guttation process and is called xylem sap.
- The cause why guttation occurs at night is because the stomata are dependent on transpiration. Stomata are pores located on the leaves' surface. Stomata are often used by plants for photosynthesis, and since photosynthesis does not occur at night (after all, it does not occur without the sun), the stomata close the store.
- When these go night-night, excess water will also need to be rid of by the plant. The plant forces the water out into a separate exit called hydathodes, in order to achieve this.
- Hydathodes are a lot like stomata, except that they can't open and close as stomata can. Often hydathodes are called water stomata, but they are more like a pore. They simply encourage the plant to slowly secrete water.

So, the correct answer is Option B Hydathode.

Note: Since water is essential for plants, water has to do with many of the fancy terms related to plants. Guttation occurs when the stomata are closed, and when they are exposed, transpiration occurs. Water is squeezed out in the form of vapour in perspiration, while it is secreted as water or xylem sap in guttation.